Answers
Answer: food, female water
Explanation:
Can I have brainliest
Answer : dog horse cat lion deer moose tiger cheetah hippopotamus zebra rabbit penguin dolphin shark fish
Explanation:
Related Questions
Which of the following could be included in your gamer's creed that would help keep gamers safe?
A. I will work hard and play harder. Games are my life.
B. I will use privacy features that gaming sites provide to ensure I do not share personal information with strangers.
C. I will do whatever I can to win games I play online.
D. I will share the game equally with my friends and family.
swered
Answers
Answer:
The answer is B. I will use privacy features that gaming sites provide to ensure I do not share personal information with strangers.
Explanation:
It keeps you safe online
Answer: the answer is b
Explanation:
What makes the results of a scientific experiment accurate? (5 points)
Answers
Answer:
A measurement is reliable if you repeat it and get the same or a similar answer over and over again, and an experiment is reliable if it gives the same result when you repeat the entire experiment.
Explanation:
Answer: when you repeat it and get the same results
Explanation:
When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and gets very similar results then those results are said to be reliable. Reliability is measured by a percentage – if you get exactly the same results every time then they are 100% reliable.
A 12-ohm resistor is connected in series with a 23-ohm resistor. They are placed across a 120-volt power source. What is the current in the circuit?
A) 35 amps
B) 10 amps
C) 5.2 amps
D) 3.4 amps
Answers
Answer:
3.43 A
Explanation:
Applying,
V = IR'.............. Equation 1
Where V = Voltage, I = current, R' = Total resistance
Make I the subject of the equation
I = V/R'........... Equation 2
From the question
Given: V = 120 volt, R' = (12+23) = 35 0hm
Substitute these values into equation 2
I = 120/35
I = 3.43 A
Basketball was developed so that athletes would have a sport to play during the _________.
A. Fall
B. Winter
C. Spring
D. Summer
Answers
Answer:
B. Winter
Explanation:
The distance from the center of the lens to its principal focus is called the focal length.
O A. True
O B. False
Answers
Answer:
true
Explanation:
Answer:
Explanation:
A. True
A wave is moving at the rate of 40 cm/s. Its wavelength is 5 cm. What is the frequency of the wave? INCLUDE THE CORRECT UNIT!
Answers
Answer:
Solution given:
velocity=40cm/s
wave length=5cm
we have
frequency =velocity/wavelength=40/5=8hertz.
the frequency of the wave is 8 hertz.
Which wave is carrying the most energy?
Answers
Our founding fathers got many of their ideas about a republican
government from the Romans.
A: True
B: False
Answers
Which of the following are true about electrons? a.) They are positively charged b.) They are negatively charged c.) They are found inside the nucleus d.) a & c
Answers
Answer:
A and C
Explanation:
BRAINLIEST PLS
Answer:
b
Explanation:
The answer is b.. because the charge of electrons is opposite to that of protons.. the combination of the equal number of protons and electrons has a total charge of zero(0)....
Linus builds an electrical circuit with a battery and with wires that carry the current. As the battery weakens, the current also weakens.
How does this affect the magnetic field around the wires?
The field gets stronger.
The field gets weaker.
The field changes direction.
The field disappears completely.
Answers
Answer:
The field gets weaker
Explanation:
I’m taking the test right now, hope this helps!!
Answer:
Linus builds an electrical circuit with a battery and with wires that carry the current. As the battery weakens, the current also weakens.
so, it would be B
A parallel plate capacitor of capacitance Co has plates of area A with separation d between them. When it is connected to a battery of voltage Vo, it has charge of magnitude Qo on its plates. It is then disconnected from the battery and the plates are pulled apart to a separation 2d without discharging them. After the plates are 2d apart, the new capacitance and the potential difference between the plates are: (Show all steps) [2 marks] a. ½ Co, ½ Vo b. ½ Co, 2Vo c. Co, Vo d. Co, 2Vo e. 2Co, 2Vo
Answers
Answer:
b. 1/2·C₀, 2·V₀
Explanation:
The capacitance on the parallel plate capacitor = C₀
The area of the plates = A
The voltage on the battery = V₀
The magnitude of the charge on the plate = Q₀
The new distance between the plates = 2·d
From an online physics source, we have;
[tex]C_0 = \epsilon_0 \times \dfrac{A}{d}[/tex]
Where;
ε₀ = Constant
A = The area of the plates
With the new distance, 2·d, we get;
[tex]C_{new} = \epsilon_0 \times \dfrac{A}{2\cdot d} = \dfrac{1}{2} \times \epsilon_0 \times \dfrac{A}{d} = \dfrac{1}{2} \times C_0[/tex]
Therefore;
[tex]The \ new \ capacitance \ C_{new} = \dfrac{1}{2} \times C_0[/tex]
The potential difference, 'V', is given as follows;
[tex]C = \dfrac{Q}{V}[/tex]
Therefore;
[tex]V = \dfrac{Q}{C}[/tex]
Given that Q = Q₀, we get;
[tex]V = \dfrac{Q_0}{\dfrac{1}{2} \times C_0} = 2 \times \dfrac{Q_0}{C_0} = 2 \times V_0[/tex]
∴ V = 2 × V₀
The new potential difference, V = 2·V₀
Therefore, after the plates are 2·d apart, the new capacitance and potential difference between the plates are;
1/2·C₀, 2·V₀.
At a distance of 2d, the potential difference will be twice the potential difference before while the capacitance will be half the value before.
Given to us
The capacitance on the parallel plate capacitor = C₀The area of the plate = AThe voltage on the battery = V₀The magnitude of the charge in the plate = Q₀The new distance between the plates = 2d What is Capacitance?We know capacitance can be written as,
[tex]C= \dfrac{\epsilon_0 A}{d}[/tex]
where C is the capacitance,
A is the area,
d is the distance and
ε₀ is the electrostatic constant,
Capacitance before,[tex]C= \dfrac{\epsilon_0 A}{d}[/tex]
Capacitance Afterwards,[tex]C= \dfrac{\epsilon_0 A}{2d}[/tex]
[tex]C=\dfrac{1}{2} \times \dfrac{\epsilon_0 A}{d}[/tex]
[tex]C=\dfrac{1}{2} \times C_0[/tex]
What is Voltage(Potential difference)?We know that for the voltage we can write,
[tex]\rm Voltage = \dfrac{Charge}{Capacitance}[/tex]
Voltage before[tex]V=\dfrac{Q_0}{C_0}[/tex]
Voltage Afterwards[tex]V_{new} = \dfrac{Q_0}{C_{new}}[/tex]
[tex]V_{new} = \dfrac{Q_0}{\dfrac{1}{2} \times C_0}[/tex]
[tex]V_{new} = 2 \times\dfrac{Q_0}{C_0}[/tex]
[tex]V_{new} = 2 \times V_0[/tex]
Hence, At a distance of 2d, the potential difference will be twice the potential difference before while the capacitance will be half the value before.
Learn more about Capacitance:
https://brainly.com/question/12356566
Danny measures the temperature of a 1.0-kg sample of sand and a 1.0-kg sample of soil. He then leaves both samples in the Sun for the 2.0 hours. At the end of this time, he measures their temperatures again.
A.
The soil absorbed more heat than the sand.
B.
The sand absorbed more cold energy than the soil.
C.
The soil absorbed more cold energy than the sand.
D.
The sand absorbed more heat than the soil.
Answers
Answer:
The sand absorbed more heat than the soil.
Explanation:
your welcome
Energy can enter and exit which of the following systems?
A. Both open and close
B. Both open and isolated
C. Open Only
C. Isolated only
Answers
Answer:
A. Both open and close
Explanation:
just took the test
what are the four eaemts
Answers
Answer:
The Four Elements in Everyday Life.
First Element: Earth. The earth is full of a wide variety of rocks and minerals which provides the soil to grow vegetation and support life. The two ...
Second Element: Water.
Third Element: Air.
Fourth Element: Fire.
Hope this help you!:)
2.4.6.8.
10th term (it's from qbasic)
Answers
Answer:
18
Explanation:
2,4,6,8..Are in A.PCommon Difference=d=4-2=3First term=a=2We know that
[tex]\boxed{\sf a_n=a+(n-1)d}[/tex]
━☞a10=2+(10-1)×2
━☞2+9×2
━☞2+18
━☞18
Does light travel faster in Barium glass or Crown glass? Explain
Answers
Answer:
Crown glass. The material which the velocity of light greatest is AIR. Because the speed of light in crown glass is the speed of light in a vacuum divided by the index of refraction of crown glass, which is 1.52. This works out to 1.97 times 10 to the 8 meters per second is the speed of light in crown glass.
Describe the change to the stores of energy of the wood, pipe and water as the water is heated
Answers
Answer:
thermal energy or proportional energy
Explanation:
when the wood is moved the energy is changed thoughout the wood and it would be the same as the pipe and water
A student practicing for a track meet ran 250 m in 30 sec
Answers
Answer:
v= 8.3 m/ s^-1
Explanation:
S=vt
v= S/t
v= 250 m/ 30 s
v= 8.3 m/ s^-1
A skydiver jumps from a stationary helicopter and reaches a steady vertical speed. She then opens her parachute. Which statement about the falling skydiver is correct?
A As her parachute opens, her acceleration is upwards.
B As she falls at a steady speed with her parachute open, her weight is zero.
C When she accelerates, the resultant force on her is zero.
alda
D When she falls at a steady speed, air resistance is zero.
Answers
Answer:
A) As her parachute opens, her acceleration is upwards.
Explanation:
The acceleration is the rate of change of the velocity.
Thus, if you have positive velocity and positive acceleration, your velocity increases
If you have positive velocity and negative acceleration, then your velocity decreases.
(The opposite happens when you have negative velocity).
Now, when the skydiver is falling, her velocity is downwards.
When she opens her parachute, her velocity downwards decreases.
This means that when she opens her parachute, she will have an acceleration in the opposite direction to her velocity, then at this point her acceleration is upwards.
We can conclude that the correct option is:
A) As her parachute opens, her acceleration is upwards.
A wave with a frequency of 1.1 Hz travels through deep water at a speed of 5.7 m/s. When the wave enters shallow water, its speed slows to 3.2 m/s. What is the wavelength of the wave in the shallow water?
Answers
Answer:
The wavelength of the wave in shallow water is 2.91 m.
Explanation:
Given;
frequency of the wave, f = 1.1 Hz
speed of the wave in deep water, v₁ = 5.7 m/s
speed of the wave in shallow water, v₂ = 3.2 m/s
The wavelength of the wave in the deep water is calculated as;
λ₁ = v₁/f
λ₁ = 5.7 / 1.1
λ₁ = 5.18 m
The wavelength of the wave in the shallow water is calculated as;
λ₂ = v₂/f
λ₂ = 3.2 / 1.1
λ₂ = 2.91 m
Therefore, the wavelength of the wave in shallow water is 2.91 m.
Which type of waves give scientists information about the structure of Earth's interior layers?
Answers
Answer:
Seismic waves
Think of earthquakes :)
Write down the name of ten items made of different materials. You have to cover all states
of matter. Prepare a chart which describes the differences in between them by their shape, size,
volume.
Answers
Answer:
helium,oxygen, shoe blackboard,juice,coffe,iron,rock,ozoneand water
NEED HELP A 400 Ω resistor is connected across 200 V. What current will flow?Single choice.
(2 Points)
0.25 A
0.5 A
2.0 A
4.0 A
Answers
Answer: 0.5A
Explanation:
According to Ohm's law, the Voltage(V) when a current flows through a resistor can be calculated by using the formula:
V = IR
where,
V = Voltage = 200V
I = current in amps (A)
R = resistance in ohms (Ω) = 400Ω
Current = Voltage / Resistance
I = V/R
I = 200/400
I = 0.5A
Therefore, the current is 0.5 Ampere
Of all the mutations, we can conclude that one mutation would MOST LIKELY contribute to a rapid rate of
extinction. That is
Answers
Answer:
A) blindness
Explanation:
7. What is the force on a 1000 kg elevator that is falling freely under the acceleration of gravity
only (10m/s?)?
Answers
g
).
So:
LAST ONE NEED HELP.A car accelerates from rest to 20 m/s, in 5 seconds. The car exerts a force of 6000 N. What is the mass of the car?Single choice.
(2 Points)
1800 kg
1500 kg
1000 kg
900 kg
Answers
Answer:
1500kg
Explanation:
Initial velocity(u)=0m/s
Final velocity(v)=20m/s
Time taken=5s
Acceleration=v-u/t
Acceleration=20-0/5=4m/s^2
Force=6000N
Mass=?
Mass=Force/acceleration
= 6000/4
=1500kg
consider the circuit. find the equivalent resistance
Answers
Answer: 18 5.0 012
Explanation:
Elements in Group____are common alkaline earth metals.
Answer here
Answers
Answer:
Explanation:
k
Answer:
Explanation:
Group 2 consists of the elements in the second column. They all have a combining number (valence number) of 2+ after giving away 2 electrons.They start with Beryllium (element 4 in the periodic table) and end with Radium (element 88 in the periodic table).What is the electrical power when the current is 20 amps and the voltage is 15 volts? *
A. 1.33 watts
B. 300 watts
C. 35 watts
Objects in space appear to change position as they orbit the sun. What is this phenomenon called? *
A. Nebular theory
B. Stellar theory
C. Parallax
The moon lacks an atmosphere because its gravity is too STRONG and forces gas molecules into outer space. *
A. True
B. False
Heat pumps move heat from __________ to __________ areas & REQUIRES energy.
A. cold, hot
B. hot, cold
Answers
Answer:
The power is 300 watts.
Explanation:
Given that,
Current, I = 20 a
Voltage, V = 15 volts
The electrical power of any device is given by the product of current and voltage. It can be given by :
P = VI
So,
P = 15 × 20
= 300 W
So, the power is 300 watts.
El siguiente esquema representa un objeto con un volumen de 2cm^3 sumergido en un recipiente que contiene agua. La densidad del agua es 1 g/cm^3 . Si solo la mitad del objeto se encuentra sumergido, el valor de la masa del agua desalojada por el objeto es de:
Answers
Answer:
Ver explicación
Explanation:
Según los principios de Arquímedes, el empuje hacia arriba de un objeto sumergido en un fluido es igual al peso del fluido desplazado.
Por eso
Empuje hacia arriba = volumen del objeto * densidad del fluido * aceleración debida a la gravedad
Empuje hacia arriba = 2 * 10 ^ -6 / 2 * 1 * 10 ^ 3 * 10
Empuje hacia arriba = 0.01 N
Desde;
Empuje hacia arriba = peso del fluido desplazado
peso del fluido desplazado = 0.01 N
Masa de fluido desplazado = 0.01 N / 10 = 1 * 10 ^ -3 Kg o 1 g