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3 years ago

12

When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. which kind of energy is thi

s?

1 answer:

disa [49]3 years ago

6 0

Heat Transfer. Heat transfer is the exchange of thermal energy between physical systems.

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DEFINE HEAT CAPACITY

Rudiy27

The number of heat units needed to raise the temperature of a body by one degree.

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A ball is dropped from a height of 20 meters. At what height does the ball have a velocity of 10 meters/second?

borishaifa [10]

Answer:B

Explanation:

Initial velocity, u=0m/s

Distance,s=20m

a=+g=9.8m/s*s

Using v*v=u*u+2gs

v*v=0+2*9.8*20

v*v=392

v=19.8

When s=20m, v = 19.8m/s

Therefore when v = 10m/s, s= 10*20/19.8

s =10.1m

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2 years ago

Please provide the steps

elena-s [515]

Answer:

wA - T =mA(a)

second option

Explanation:

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2 years ago

Prior to determining the experimental design, a scientist typically? A. makes observations. B. forms a hypothesis. C. performs a

Umnica [9.8K]

Prior to determining the experimental design, a scientist typically forms a hypothesis. The answer is letter B. this is to prepare the scientist, the possible outcome of their research before the experimental design whether they are wrong or not.

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2 years ago

For these pictures is more or less friction needed?

antiseptic1488 [7]

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8: More

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11: Less

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2 years ago