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3 years ago

(blank) is the thermal energy that flows from one substance to another when the substances differ in temperature

Physics

2 answers:

Oduvanchick [21]3 years ago

5 0

The answer is heat I think

antiseptic1488 [7]3 years ago

5 0

Answer:

Heat

Explanation:

Heat is a form of energy, specifically thermal energy.

An important characteristic of heat is that it is an energy in transit, so it flows from one system to another when there is a difference in temperature between them.

Heat will always flow from the system with a higher temperature to the system with a lower temperature, never the other way around.

Since heat is an energy in transit, it cannot be stored in a system, it can only be absorbed or transferred.

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Do Small objects exert no gravitational force ? True or false

Zanzabum

Answer:

False -

F = G M1 M2 / R^2

So F depends on M1 and M2 and as long either is not zero there will be a gravitational force between them.

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2 years ago

• A flame always points upwards. Why do you think this is so?

valina [46]

Answer:

A flame always point upwards because the flame's gas is hotter than the surrounding air and, like you said, a hot gas is always lighter or less dense than a cold gas.

Explanation:

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2 years ago

A bicycle rider traveling east at 10 km/hr sees a blue car pass her appearing to travel west at 50 km/hr. What is the blue car's

BigorU [14]

Answer:

$v_{bR} = 25 km/h$ towards west

Explanation:

As we know that the speed of the blue car as appear to the bicycle rider is given as

$v_{bc} = 50 km/h$ towards west

also it is given that bicycle is moving at speed of 10 km/h towards East

so here we have

$v_{bc} = v_b - v_c$

so we have

$v_b = v_{bc} + v_c$

$v_b = -50 + 10 = 40 km/h$ towards west

now speed of the red car is given as 15 km/h towards west

so here the relative speed of blue car with respect to red car is given as

$v_{bR} = v_b - v_R$

$v_{bR} = 40 - 15 = 25 km/h$ towards west

8 0

3 years ago

Which of these instruments can be used to peedict a thunderstorm?

FinnZ [79.3K]

<span> Doppler Radar is the instrument that is used to predict a thunderstorm. </span>

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3 years ago

Debbie places two shopping carts in a cart Corral. she pushes the first cart, which then pushes a second cart. what force is bei

Bingel [31]

When Debbie pushes the first cart she is using an applied force. An applied force is created when someone or something pushes another thing using, of course, an applied force. Now, when the second cart is being pushed by the first cart, this is also an applied force. You can tell because the first cart is being pushed using forced and this causes the second cart to be pushed using some of the force that is being transmitted to the first cart.

Debbie exerts applied force on the first cart. The first cart exert applied force on the second cart.

- Marlon Nunez

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3 years ago