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Zinaida [17]
3 years ago
5

How much thermal energy does it take to raise the temperature of 2.5 kg of

Physics
1 answer:
KonstantinChe [14]3 years ago
3 0

Answer:

390kJ

Explanation:

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Can somebody help please !!!!
Nataly [62]

Vector A is of magnitude 12 m and it makes an angle of 37 degree with Y axis

So here we can say that

\frac{A_x}{A} = sin37

A_x = A sin37

A_x = 12 sin37

A_x = 7.22 m

Similarly we have

\frac{A_y}{A} = cos37

A_y = A cos37

A_y = 12 cos37

A_y = 9.58 m

So here we have

A_y = 9.58 m, A_x = 7.22 m

option A is correct

3 0
3 years ago
A wave along a guitar string has a frequency of 540 Hz and a wavelength of 4.3 m. Calculate the velocity of the wave.
Virty [35]

Answer:

Velocity of wave =  2322 m /sec

Explanation:

We know that, Velocity of wave v = n  λ

Given, n = 540 Hz,  λ=4.3 m , v = ?

Putting the value of n and λ

Velocity of wave = 540 x 4.3 = 2322 m /sec

8 0
3 years ago
Read 2 more answers
In a comic book, superman carries a bus (with a bomb on board) up into the air, hovers for a second and then trows the bus over
Licemer1 [7]
This breaks Newton's Second Law: For every action there is an equal and opposite reaction. The force exerted on the bus by superman should also be exerted on superman by the bus. Using the equation F=m*a, since superman's mass is so much less than the mass of the bus, he should experience a much higher acceleration than the bus does. So if the bus goes over the horizon, then superman should go MUCH further the other way. The caveat is that superman isn't able to change his density at will, which I believe is true in some storylines.
5 0
4 years ago
How is thermal energy transferred during conduction?
Irina-Kira [14]

Answer:

Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more. These molecules then bump into nearby particles and transfer some of their energy to them. This then continues and passes the energy from the hot end down to the colder end of the substance.

Explanation:

May I have brainliest please? :)

4 0
3 years ago
Why does the earth stay in orbit around the sun instead of drifting away from it into space?
pychu [463]

Answer:

b it is b part answer i think so

3 0
2 years ago
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