Answers
Answer:
2nd one
Explanation:
highest frequency shortest wavelength
Answer:
highest frequency shortest wavelength
Related Questions
One of the most dangerous side effects of an erupting volcano is a
Answers
Answer:
One of the most deadly effects of a volcano is the ash coming from the eruption, which carries poisonous gases that are harmful to humans, plants, and animals alike.
Explanation:
:))))))))
A 1,100kg car is going at 22 m/s. What force is needed to stop it in 20
seconds?
Answers
for a Velocity/time
22/20
1.1
F=1.1. * 1100
F=1210newton
A 1,100 kg car is going at 22 m/s. Force is needed to stop it in 20
seconds is 1210 N.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Using equation of motion,
v = u + at
0 = 22 + a.20
a = 1.1 m/sec²
force = mass.acceleration
force = 1100.(1.1)
force = 1210 N.
A 1,100 kg car is going at 22 m/s. Force is needed to stop it in 20
seconds is 1210 N.
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answer right away!!—A plucked guitar string emits a dominant
frequency of 320 Hz. What is the
frequency of the 3rd harmonic?
Answers
Answer:
20000000000000hz only for this
State whether the following are true or false.
1. Sun dial and sand clock were used in ancient time. ______
2. Cubit, handspan and foot span are standard units of measurement. ______
3. Pendulum clock repeats its motion at equal intervals of time. ______
4. In digital clocks, mechanical vibrations are converted into digital electronic signals. ______
5. Sundials can also be used on rainy days.
Answers
Answer:
Explanation:
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Waldo needs to know how much force to apply in order to move a 4000-kg object at 2 m/S2. Which law should he refer to
A.
law of gravity
B.
second law
C.
third law
D.
first law
Answers
bebe xd mexico gana siempre
A truck skids for a distance of 25m with the road pushing on its tires with force of 1500N as its brakes are applied. What is the change in kinetic energy for the truck?
Answers
Answer:
37500 J
Explanation:
Law of conservation of energy: Its states that energy can neither be created nor destroyed but it can be transformed from one form to another.
Applying the law of conservation of energy.
The change in kinetic energy for the truck = Net work done by the truck skids
ΔK.E = F×d.................... Equation 1
Where ΔK.E = Change in kinetic energy, F = Force, d = distant.
Given: F = 1500 N, d = 25 m
Substitute these values into equation 1
ΔK.E = 1500×25
ΔK.E = 37500 J
If it takes 35J to lift up an object to some height, then how much gravitational potential energy will that object have?
Answers
Help plz for 25 points !! I only have an hour left !
Answers
What voltage is required to move 2A through 5Ω?
Answers
Explanation: V=AxR
2x5 (2 times five)
what must happen in order for a metaphoric rock to be transformed into a igneous rock
Answers
Answer:
If the newly formed metamorphic rock continues to heat, it can eventually melt and become molten (magma). When the molten rock cools it forms an igneous rock.
Explanation:
A 15-meter length of aluminum wire is at 20 degrees C. The radius of the wire is 4.2 x 10-4 meters. What’s the resistance of the wire?
Answers
Answer:
Idek figure it out
Explanation:
Why u so lazy?
If the specific heat of iron = 0.46J C, how much heat is needed to warm 50 g of iron from 20C to 100C
Answers
Answer:
1840 J
Explanation:
From the question given above, the following data were obtained:
Specific heat capacity (C) = 0.46 J/gºC
Mass (M) = 50 g
Initial temperature (T₁) = 20 °C
Final temperature (T₂) = 100 °C
Heat (Q) required =?
Next, we shall determine the change in the temperature. This can be obtained as follow:
Initial temperature (T₁) = 20 °C
Final temperature (T₂) = 100 °C
Change in temperature (ΔT) =?
ΔT = T₂ – T₁
ΔT = 100 – 20
ΔT = 80 °C
Finally, we shall determine the heat required. This can be obtained as follow:
Specific heat capacity (C) = 0.46 J/gºC
Mass (M) = 50 g
Change in temperature (ΔT) = 80 °C
Heat (Q) required =?
Q = MCΔT
Q = 50 × 0.46 × 80
Q = 1840 J
Thus, 1840 J of heat energy is required.
how to do this please
Answers
Answer:
1) see the diagram below
2) (b) the length of the wire being tested
Explanation:
1) An ammeter is connected in series with the circuit branch in which you want to measure current. "Conventional current" enters the positive terminal of the ammeter. (You can think of it as a voltmeter across a small resistor. The polarity of the voltage matches the polarity of the current.)
A voltmeter is connected in parallel with the circuit element of interest. Here, you want to measure the voltage across the wire, so the voltmeter is placed in parallel with the wire. The positive terminal of the voltmeter is connected to the end of the circuit element that has the higher (more positive) potential.
__
2) The wording of the problem tells you which variable is independent:
"A varies with B" means the independent variable is B
Here, the independent variable is the length of the wire.
PLZ HELPPPPP (NO BS)
Answers
Answer:
its kainda blurry aploude another pic
Answer:
2
Explanation:
Which of the following is not true about a scientific name?
a. they should be typed in italics
b. they are derived from Greek and Latin words
c. they contain a genus and species name
d. they can vary from location to location
Answers
Ammonia is a common____?
Answers
Answer:
Base
Hope this helps! :)
What is sin(77°)? plz help
Answers
Answer:
Value of Sin(77 degree) = 0.97437006
Degree / Radian Function
(angle in degree) (angle in radian) Sin Cos Tan Cot Sec Cosec SinH CosH TanH CosecH SecH CotH Arc Sin Arc Cos Arc Tan Arc Cosec Arc Sec Arc Cot
7. Your friend shows you a special kind of paper that can change color. He says that it will change
color if it is out in the sun. Can light from the sun cause the paper to change color?
a
Yes. Light from the sun can pull energy out of the paper, causing it to change color.
b
Yes. The paper can take in energy from the light, causing it to change color.
С
No. Light is not a physical thing, so it cannot change physical things like paper.
d
No. Light can only change things by warming them up, so it cannot cause the paper to
change color.
Answers
Answer:
d no light can only change things by warming them up , so it cannot cause the paper to change colur
A copper atom has an atomic number of 29 and an atomic mass of 64. What
is the structure of this atom?
A. It has a central nucleus composed of 29 protons and 64 neutrons,
surrounded by an electron cloud containing 29 electrons.
B. It has a central nucleus composed of 35 protons and 29 neutrons,
surrounded by an electron cloud containing 29 electrons.
O C. It has a central nucleus composed of 29 protons and 35 neutrons,
surrounded by an electron cloud containing 29 electrons.
OD. It has a central nucleus composed of 29 protons and 29 neutrons,
surrounded by an electron cloud containing 35 electrons.
Answers
Answer:
The answer is B.
Explanation:
It has a central nucleus composed of 29 protons and 35 neutrons, surrounded by an electron cloud containing 29 electrons.
Which objects generate magnetic fields? Choose more than one
answer.
Magnet
Electric wire with no
current
Electric wire with current
Electromagnet
Paper clip
Metal coin
Answers
magnets' persistent magnetic fields.Things that create their own persistent magnetic fields are known as permanent magnets.They have a north and a south pole and are built of magnetized ferromagnetic elements, such as iron and nickel.
More than one solution to the question "what causes a magnetic field?"
may be true.Charged particles that are in motion produce all magnetic fields.Due to the continually moving electrons inside, even the magnet on your refrigerator is magnetic. A magnetic field is produced along the axis of a wire loop by a current flowing through it.Curling the fingers of the right hand in the direction of the current through the loop and pointing the thumb in the direction of the magnetic field will reveal the direction of the field inside the loop. The magnetic field strength of an electromagnet or solenoid, depends on the number (N) of coil turns, the strength of current flowing through the coil in amperes, and its length L. This gives us: H = (NI)/L where NI represents the ampere-turns value.Items made of iron, cobalt, nickel, and steel are drawn to magnets.Paperclips are magnetic because they are often constructed of galvanized steel wire. Any of the following techniques can create a magnetic field:I Any type of magnet, including round, horseshoe, and bar magnets, may be employed.(ii) A current-carrying wire generates a field all around it.(iii) A current-carrying loop or solenoid Electric charges in motion are what generate magnetism.The smallest building blocks of matter are called atoms.There are electrons in every atom, which are charged particles.The electrons that make up an atom's nucleus, or core, spin like tops. Ampere noted that whenever an electrical charge is moving, a magnetic field is created.Similar to how an electrical current flowing through a wire creates a magnetic field, the spinning and circling of an atom's nucleus accomplishes the same.The magnetic field's orientation is determined by the spin and orbit directions. There are only two ways to create a powerful magnetic field.In the first, a solenoid is used, whereas in the second, a solenoid with an iron core is used. Magnetic materials found in nature are connected to magnetic fields.Instead of static charges, a magnetic field can be produced by moving charges.F = QVB, where Q is the charge and V is the charge's velocity perpendicular to the field B, describes the force acting on moving charges in a magnetic field.To learn more about magnetic field refer
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If the two forces on an object are equal in size and opposite in direction, the forces are balanced, and no change
in motion results. Which of the following situations is an example of balanced force acting upon an object?
O A rope being pulled from both sides with equal force
O An 11-gram pen falling off a table onto the floor
O A car moving constantly at 30 miles per hour
O A rock accelerating as it rolls down a hill
Answers
Answer:
a rope being pulled from both sides with equal force
Explanation:
:)
If a chemical reaction has a AH value of -125 kJ, it would be considered what?
Answers
Answer:
Exothermic Reaction
Explanation:
ENDOTHERMIC REACTION: A chemical reaction is considered endothermic if the energy is absorbed during the reaction. In other words, if the energy is required by the reactants to proceed with the reaction, then the reaction is endothermic.
The value of enthalpy change ΔH is positive in such reactions showing intake of energy.
EXOTHERMIC REACTION: A chemical reaction is considered exothermic if the energy is released during the reaction. In other words, if the energy is produced as a product of the reaction, then the reaction is exothermic.
The value of enthalpy change ΔH is negative in such reactions showing the release of energy.
Since, the value of ΔH = -125 KJ, is negative for the given reaction.
Therefore, it would be considered as Exothermic Reaction.
pls help Which one of the following is NOT acceleration
A.
a change in mass
B.
a change in direction
C.
an increase in velocity
D.
a decrease in velocity
Answers
Answer:
C
Explanation:
Am increase in velocity?
Answer:
change in mass is not acceleration
Which action MOST LIKELY occurred in order for the sugar to dissolve?
Answers
Answer:
In order for sugar to dissolve, there must be an attraction between the two substances.
Explanation:
Water and sugar are both attracted to each other, which is why sugar is able to dissolve in water.
Hope this helps! :)
Answer:
the water was stirred
Explanation:
it’s need as a type of attraction
What is the linear momentum of a car of mass 1000 kg that is moving at a speed of 20 m/s?
а
Oь
50 kg m/s
0.02 kg m/s
20000 kg m/s
2000 kg m/s
Od
Answers
The correct option is 20000 kg m /s.
What is Momentum ?
Momentum is a concept in physics that describes an object's tendency to continue moving in its current direction at a constant speed. It is a vector quantity, meaning it has both magnitude and direction. The momentum of an object is defined as the product of its mass and velocity, and is represented by the equation: p = mv, where p is momentum, m is mass, and v is velocity.
In simple terms, momentum can be thought of as the "motion" of an object, and the larger the mass and velocity of an object, the greater its momentum. Momentum is a conserved quantity, which means that the total momentum of a system remains constant unless acted upon by an external force.
Given , Mass = 1000kg
Speed = 20 m/s
momentum = mv = 20000 kg m /s
To learn more about the momentum , click the given link ; brainly.com/question/86444
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Name two things that Arjun and Diya did to get accurate measurements of the angles in their experiment
Answers
Answer:
i dont know them
Explanation:
Which is the best description of a high pressure system?
A.
Air cools and rises.
B.
Air warms and rises.
C.
Air cools and sinks.
D.
Air warms and sinks.
Answers
Answer:
The Answer is gonna be B.
Air warms and rises.
Which of these are part of the electromagnetic spectrum?
Question options:
gamma rays
visible light
microwaves
sound waves
radio waves
Answers
Answer: A, C, E
Explanation:
Gamma rays, Microwaves, and Radio waves
True or False? Index Fossils are used to help constrain the relative age of the rocks in an area?
Answers
how dose storing waste underground can be effected by ground water in aquifers
Answers
Answer:
it can contaminate the water
Explanation:
I hope this helps ;)