As the moon phase approaches full we say the Moon has now completed one half of the lunar month.
What is Lunar month?This is defined as the time it takes the Moon to pass through all of the phases.
When the moon approaches full then itn has completed one half of the lunar month which is the time taken to form a new moon.
Read more about Moon here https://brainly.com/question/18517840
#SPJ1
A crate is moved across a frictionless floor by a rope THAT is inclined 30 degrees above horizontal. The tension in the rope is 50 N. How much work is done in moving the crate 10 meters?
Only the horizontal component of the tension force is performing work on the crate. This component has magnitude (50 N) cos(30°) = 25√3 N, so the work done is
(25√3 N) (10 m) = 250√3 N•m ≈ 433 J
what term refers to the limited air transfer that takes place once the station has been launched?
A: closed environment
B: exposed environment
C: secure environment
D: open environment
Closed environment refers to the limited air transfer that takes place once the station has been launched.
What is a Closed environment?
This is an environment which has little or no interference with the atmosphere.
Launching of station in a closed environment will help prevent damages done as a result of exposure to radiations etc.
Read more about Environment here https://brainly.com/question/17413226
#SPJ1
Q2
Radioactive waste from nuclear power stations is a man-made source of background
radiation.
(a) Give one other man-made source of background radiation
Answer:
the clock hand of watch which have radium-226 for luminance
To fully complete this project, you will submit the following: complete the data table with values that you determine from the video and calculated. find the average wave speed as asked for in question 3. find the mathematical speed of sound as asked for in question 4. show your calculation. answer to question 5 in complete sentences.
Since no data table was provided, the wave speed be calculated by taking the mean of speed values.
Also, the mathematically derived speed of sound is 343 m/s at 20 °C.
What is speed of sound in air?Sound is an example of a mechanical wave and require a material medium for it's transmission.
The speed of sound in air has been determined to be about 343 m/s at 20 °C.
The average wave speed can be calculated using the formula:
Average wave speed = (initial speed + final speed)/2The formula relating speed of a wave, frequency, and wavelength is given below:
Speed = wavelength × frequency.It is important to note that in this question, no data table or video was provided.
Therefore, the wave speed be calculated by taking the mean of speed values obtained in the experiment as shown in the video.
Also, the mathematically derived speed of sound is 343 m/s at 20 °C.
Learn more about speed of waves at: https://brainly.com/question/2847127
#SPJ2
it is seen that in a balloon filled with air,if we press one side of the balloon the other side bulges out.why is it so???
When we apply pressure on the one side of balloon the other side bulges out due to the movement of gas to other side.
What happen when we press one side of the balloon?If we press one side of the balloon, the other side bulges out because the gas that present on one side moves to the other side where there is no pressure. The body of balloon is elastic so when we apply pressure the other side bulges out.
So we can conclude that when we apply pressure on the one side of balloon the other side bulges out due to the movement of gas to other side.
Learn more about pressure here: https://brainly.com/question/25736513
#SPJ1
On Earth's surface at sea level, what is the weight of an object with a mass of 180 kg?
860 newtons
1764 newtons
400 newtons
200 pounds
Considering the definition of weight, on Earth's surface at sea level, the weight of an object with a mass of 180 kg is 1764 N.
What is weightMass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body.
The mass of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.
The weight is calculated as the product of the mass of the object and the value of the gravitational acceleration or gravity:
Weight= mass× gravity
The value of the acceleration constant on Earth is 9.8 m/s². The weight is proportional to the mass of the object. The unit of weight is expressed in Newton (N).
Weight of the object in this caseIn this case, you know:
mass= 180 kggravity= 9.8 m/s²Replacing on the definition of weight:
Weight= 180 kg× 9.8 m/s²
Solving:
Weight= 1764 N
Finally, on Earth's surface at sea level, the weight of an object with a mass of 180 kg is 1764 N.
Learn more about weight:
https://brainly.com/question/17490356
#SPJ1
Six students each make an electromagnet for an investigation. Each student wraps copper wire around a nail and attaches each end of the wire to a 9-volt battery. The students use their electromagnets to pick up paper clips. The table shows the number of paper clips each student picks up with their electromagnet.
a) Write one question about how the electromagnets were made that the students could answer that would help explain the differences in the numbers of paper clips picked up by the electromagnets. Explain your reasoning.
b) Identify one factor, other than how the electromagnets were made, that would affect the number of paper clips picked up by the electromagnet. Explain your reasoning.
The question on how electromagnets are produced that students may answer to help explain the disparities in the quantity of paper clips taken up by the electromagnets "What is the strength of electromagnet”
What is static electricity?The imbalance of electric charges within or on the surface of a substance, or between materials, is known as static electricity.
Static electricity is generated by Van de Graaff generators. Static does not include acceleration, implying that it is stationary, which pertains to the formation of electric charges.
a)The question on how electromagnets are produced that students may answer to help explain the disparities in the quantity of paper clips taken up by the electromagnets "What is the strength of electromagnet”
b)The one factor, other than how the electromagnets were manufactured, that influences the quantity of paper clips the electromagnet picks up will be electrostatics.
Hence,the whole activity is about the electromagnets.
To learn more about static electricity refer:
https://brainly.com/question/12791045
#SPJ1
The magnitude of the angular momentum of the two-satellite system is best represented by
The magnitude of the angular momentum of the two-satellite system is best represented as, L=m₁v₁r₁-m₂v₂r₂.
What is angular momentum.?The rotational analog of linear momentum is angular momentum also known as moment of momentum or rotational momentum.
It is significant in physics because it is a conserved quantity. the total angular momentum of a closed system remains constant. Both the direction and magnitude of angular momentum are conserved.
The magnitude of the angular momentum of the two-satellite system is best represented as;
L=∑mvr
L=m₁v₁r₁-m₂v₂r₂
Hence, the magnitude of the angular momentum of the two-satellite system is best represented as, L=m₁v₁r₁-m₂v₂r₂.
To learn more about the angular momentum, refer to the link;
https://brainly.com/question/15104254
#SPJ4
Comment on the statement "Sharper the curve, more is the bending."
The direction of the angular velocity of the minute hand of a wall-clock is perpendicular to the wall and directed inwards.
The passenger slides away from the centre of the curve.
The angle θ which a cyclist should make with the vertical while taking a circular turn of radius r with velocity v given by
tan θ = v^2/rg
Sharper the curve, smaller is the radius and greater is the value of 0.
Why is a Magnetar extremely magnetic?
Answer:
The dominant theory of the strong fields of magnetars is that it results from a magnetohydrodynamic dynamo process in the turbulent, extremely dense conducting fluid that exists before the neutron star settles into its equilibrium configuration.
How strong is a magnetar magnetic field?
It can generate the most intense magnetic field observed in the Universe. The field strength of a magnetar is one thousand trillion times stronger than Earth's and is so intense that it heats the surface to 18 million degrees Fahrenheit. We only know of about 10 magnetars in the Milky Way galaxy.
Three resistors of 100 W, 3900 W, and 1000 W are connected in series across a 200-V battery. What is the voltage drop across the resistor of value 1000 W?
Answer:
40 V
Explanation:
I will assume that the resistors are
100 and 3900 and 1000 OHMS <=====(NOT W)
In series , the resistances add together 100 + 3900 + 1000 = 5000 ohms total
V = IR
I = V / R so the total current will be 200 v / 5000 ohms = .04 amps
this is the current through all of the resistors
so for the 1000 ohm resistor V = IR .04 (1000) = 40 V
please help
a piece of wood of mass 40g and uniform cross-sectional area of 2cm^2 floats upright in water. calculate the length of the immersed part of the wood
The length of the immersed part of the wood is 0.2m.
What is density?The density is the ratio of the mass and the volume of the object. It is denoted by ρ.
ρ = mass/Volume = m/V
Volume = Area of cross-section A x height h
Given is a piece of wood of mass 40g =0.04kg and uniform cross-sectional area A= 2cm² =2x10⁻⁴ m² floats upright in water.
The density of water ,ρ = 1000 kg/m³
The density related to length of part immersed is
1000 = 0.04/ (2x10⁻⁴ x h)
h = 0.2m
Thus, the length of the immersed part of the wood is 0.2m.
Learn more about density.
https://brainly.com/question/9215083
#SPJ1
A stunt pilot in an air show performs a loop-the-loop in a vertical circle of radius 3.80 103 m. During this performance the pilot whose weight is 623 N, maintains a constant speed of 2.10 102 m/s. (a) When the pilot is at the highest point of the loop determine his apparent weight in N. N (b) At what speed, in m/s, will the pilot experience weightlessness
The apparent weight of the pilot would be 619.48 N and the speed he would experience at weightlessness is 192. 97 m/s
What is apparent weight?
Apparent weight is a property of object that co-relates to the heaviness of the object.
It differs from the weight of an object as a result of the in-balance between the force acting on the object and an equal but opposite force
How to calculate the apparent weight
Formula:
Apparent weight = Real weight (mg) - m v∧2 ÷ r
Where m = mass
g = acceleration due to gravity = 9.8 m/s²
v = constant velocity = 2. 10 × 10∧2 m/s
r = radius = 3.80 × 10∧3 m
Note that weight = mg
m = weight ÷ g = 623 ÷ 9.8 = 63. 57 kg
a. Apparent wieight = 623 - (63. 57 × 2.10 × 10∧2 × 2.10 × 10∧2) ÷ 3.80 × 10∧3)
= 623 - (63.57 × 210) ÷ 3800
= 623 - 13377 ÷ 3800
= 623 - 3. 52
= 619.48 N
b. At weightless, weight = 0
Speed, V = √g× r = √ 9.8 × 3800 = √37,240 = 192. 97 m/s
Hence, The apparent weight of the pilot would be 619.48 N and the speed he would experience at weightlessness is 192. 97 m/s
Read more on apparent weight here:
https://brainly.com/question/11180653
#SPJ1
Read the scenario below and answer the question that follows.
Jean has been increasingly hyperactive, staying up all night, and finishing her work assignments in record time during the past few weeks. She feels it is a big improvement from how she felt before, when she was worried about losing her job, had trouble concentrating, and felt extremely irritable.
Jean is most likely suffering from __________ disorder.
A.
major depressive
B.
bipolar
C.
phobic
D.
generalized anxiety
On a hot day, the deck of a small ship reaches a temperature of 48
17.0°C seawater on the deck to cool it down. During the cooling, 3,710,000 J are transferred to the
seawater from the deck. Assume no energy or mass is lost from the system. Use c = 3,930 J/kg°C for
seawater.
Calculate the final temperature of the seawater-deck system.
Write your answer rounding to the nearest tenth.
The final temperature of the seawater-deck system is 990°C.
What is heat?The increment in temperature adds up the thermal energy into the object. This energy is Heat energy.
The deck of a small ship reaches a temperature Ti= 48.17°C seawater on the deck to cool it down. During the cooling, heat Q =3,710,000 J are transferred to the seawater from the deck. Specific heat of seawater= 3,930 J/kg°C.
Suppose for 1 kg of sea water, the heat transferred from the system is given by
3,710,000 = 1 x 3,930 x (T - 48.17)
T = 990°C to the nearest tenth.
The final temperature of the seawater-deck system is 990°C.
Learn more about heat.
https://brainly.com/question/13860901
#SPJ1
How does the government involve in a child or young person’s upbringing in your
country?
The government are involved in a child or young person’s upbringing in my country by providing the right amenities and ensure the justice system is fair.
What is Upbringing?This is defined as the way an individual treated at a young age by older adults such as parents.
Providing amenities will ensure the upbringing of the child is easier and a fair justice system will help to control crime.
Read more about Upbringing here https://brainly.com/question/12397063
#SPJ1
A 4 kg block is pushed 2m at an acceleration of 0.2 meter per second square up a vertical wall by constant force f applied at an angle of 37 degree with the horizontal if the coefficient of kinetic friction between the block and the wall is 0.30 find the work done by the applied force the frictional force
The work done by the applied force on the block against the frictional force is 15.75 J.
What is work done?Work done is equal to product of force applied and distance moved.
Work = Force x Distance
Given is a 4 kg block is pushed 2m at an acceleration of 0.2 meter per second square up a vertical wall by constant force f applied at an angle of 37 degree with the horizontal if the coefficient of kinetic friction, μ between the block and the wall is 0.30.
From the equilibrium of forces acting on the block, we have
F - f = ma
where, F is applied force, f is frictional force, m is the mass and a is the acceleration.
Frictional force f = μmgsinθ
Substitute the values, we get
Fcos(37) - μmgsin(37) = ma
Fcos(37) - (0.3)(4)(9.8)sin(37) = 4(0.2)
0.799F - 7.077 = 0.8
F = 9.86 N
Work done by the applied force is
W = Fdcosθ
W = 9.86 x 2 x cos(37)
W = 15.75 J
Thus, the work done by the applied force on the block against the frictional force is 15.75 J.
Learn more about Work done
brainly.com/question/13662169
#SPJ1
What is a car’s acceleration if it increases its speed from 5 m/s to 20 m/s in 3 s? 10 m/s2 –15 m/s2 15 m/s2 5 m/s2
Answer:
5 m/s²
Explanation:
Acceleration = change in speed/time taken
20-5=15
15/3= 5 m/s²
The flag in front of Century High School is attached to a pully. The upward tension on the rope is 15 newtons and the downward tension on the rope is 18 newtons. What is the magnitude and direction of the net force?
3 newtons upward
3 newtons downward
From the statement in the question, the resultant force is 3N downward.
What is the resultant force?The term resultant force refers to a single force that will an effect tat is the same as that of the system of forces acting together.
Thus, if the upward force is 15 N and the downward force is 18 N, the resultant force will be; 18 N - 15 N = 3N downward.
Learn more about resultant force:https://brainly.com/question/16380983
#SPJ1
45 V =
2.0 Ω
www
6.0 Ω
3.0 Ω
>4.0 Ω
What is the equivalent resistance in this circuit?
Ω
What is the current in this circuit?
A
Answer:
Current = 22.5A
Explanation:
By using ohm's law [tex]i = \frac{v}{q} [/tex]45/2 = 22.5After three half-lives have elapsed, the amount of an 8.0 g sample of a radionuclide that
(hint: pizza slices)
a. remains undecayed is 1.0 g
b. has decayed is 7.09
c. remains undecayed is one-third the original amount
d. more than one correct response
e. no correct responsel
After three half-lives have elapsed, the amount of an 8.0 g sample of a radionuclide that remains undecayed is 1.0 g.
What is Half-Life?Half-Life refers to the time it takes for half the amount of a substance to disappear or change.
The nucleus of the atoms of radioactive elements disintegrate to half their starting amounts after every Half-Life.
After three half-lives one-eight of the original atoms remain.
Therefore, after three half-lives have elapsed, the amount of an 8.0 g sample of a radionuclide that remains undecayed is 1.0 g.
Learn more about Half-Life at: https://brainly.com/question/26689704
#SPJ1
The electromagnet in a motor must rotate consistantly in just one direction to transfor. ectrical energy into mechanical energy. What causes this rotation?
The rotation of the electric motor in one direction is because the commutator frequently reverses the direction of the current in the loop of wire.
What is an electromagnet?An electromagnet is a device which works on the principle of electromagnetism.
Electromagnetism is the force produced due to an interaction of the electric and magnetic fields.
An example of an electromagnet is the electric motor.
In an electromagnet, the rotation of the motor in one direction is because the commutator frequently reverses the direction of the current in the loop of wire.
Learn more about electric motor at: https://brainly.com/question/1049516
#SPJ1
Electromagnet in a motor must rotate consistently in just one direction because of the movement of permanent magnet.
What causes the rotation?
A Lorentz force is generated by the current and the magnetic flux of the permanent magnet in the same direction when the movement of the permanent magnet occur.
So we can conclude that Electromagnet in a motor must rotate consistently in just one direction because of the movement of permanent magnet.
Learn more about magnet here: https://brainly.com/question/14997726
#SPJ1
Rearrange the equation = KE
-1
2
- my? to solve for v. Show your work.
Answer:
See below
Explanation:
KE = 1/2 m v^2 multiply both sides by 2
2 (KE) = mv^2 divide both sides by m
2(KE) / m = v^2 sqrt both sides
√ [(2KE)/m ] = v
What can be described as a technology that uses high-frequency sound waves to create images
Answer:
Ultrasound imaging.
Explanation:
It uses high-frequency sound waves to view inside the body.
Pls help me l will make it brainlest
Answer:
0.04 °C⁻¹
Explanation:
First, we need to calculate linear expansivity, then after finding that value, we can move on to finding the area expansivity.
=============================================================
Finding Linear Expansivity :
⇒ α = Final length - Original length / (Original length × ΔT)
⇒ α = 9 - 4 / (4 × 70 - 20)
⇒ α = 5 / 5 × 50
⇒ α = 0.02
============================================================
Finding Area Expansivity :
⇒ Area Expansivity = 2 × Linear Expansivity
⇒ β = 2 × α
⇒ β = 2 × 0.02
⇒ β = 0.04 °C⁻¹
Calculate the value of the area expansion of a steel rod of lenght 4cm at 20°c after heating attains another length of 9cm at 70°c.
Area = 0.02
Area Expansity = [tex]0.0 {4}^{ - 1} [/tex]
A massless rod is attached to the ceiling by a string. Two weights are hung from the rod: a 0.4-lb weight at its left end and a 1.2-lb weight at its right end. The length of the rod is L and a string is attached (3L/4 from its left end) so that the rod (with attached weights) is horizontal. What is the tension in the string supporting the rod and the attached weights
The tension in the string supporting the rod and the attached weights is 7.11 N.
Tension in the string supporting the rodThe tension in the string supporting the rod and the attached weights is the sum of the weights supported by the strings.
T = (m1 + m2)g
where;
m1 and m2 are the two masses supported0.4lb + 1.2lb = 1.6lb = 0.725 kg
T = 0.725 x 9.8
T = 7.11 N
Learn more about tension here: https://brainly.com/question/918617
#SPJ1
The diagram shows two sets of vectors that result in a
single vector.
50 m
200 m
100 m
R
250 m
What are the first two steps for finding the magnitude
of the resultant vector?
find the square of the first horizontal vector and the
square root of the first vertical vector
find the square root of the first horizontal vector and
the square root of the second horizontal vector
find the sum of the two horizontal vectors and the
sum of the two vertical vectors
find the difference between the two horizontal
vectors and the difference between the two vertical
vectors
The first two steps for finding the magnitude of the resultant vector is find the sum of the two horizontal vectors and the sum of the two vertical vectors.
Resultant of two vectorsThe resultant of two vectors is determined from Pythagoras theorem is as shown below.
R² = a² + b²
First two steps of finding a resultant vectorsfind the sum of the two horizontal vectors and the sum of the two vertical vectors.Thus, the first two steps for finding the magnitude of the resultant vector is find the sum of the two horizontal vectors and the sum of the two vertical vectors.
Learn more about resultant vectors here: https://brainly.com/question/110151
#SPJ1
Why is it making me do this
Answer:
I don't know.
Explanation:
I have no idea what you are referring to.
. The nucleus contains protons and neutrons and the outer part of the atom contains
Answer:
Electrons
What are electrons?An elementary particle that is a fundamental constituent of matter, having a negative charge of 1.602 × 10- 19 coulombs, a mass of 9.108 × 10 - 31 kilograms, and spin of 1/2, and existing independently or as the component outside the nucleus of an atom. It can also be defined as a unit of charge equal to the charge of one electron.
Which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?
a 50kg couch
a 5kg dining chair
a 75kg dining table
an 10kg end table
Answer:75 kg
Explanation:
I took the test edge