4 years ago

What is the predicted result when two different materials of equal mass absorb the same amount of energy by heat flow?

1 answer:

7 0

The correct is D.

Explanation: The specific heat is defined as heat required to raise the temperature of a unit mass by one degree. Greater the specific heat, more is the heat required to raise the temperature for equal mass. So, the temperature of the material with lowest specific heat will increase the most for the same amount of heat energy.

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A vehicle moves in a straight line with an acceleration of 4 km/h2. By how much does the speed change each second? Answer in uni

Elena-2011 [213]

Answer:

The speed of the vehicle changes in each second is, v = 0.00111 Km/h

Explanation:

Given,

The acceleration of the vehicle, a = 4 Km/h²

Converting it into m/s,

a = 0.0003086 m/s²

In each second the vehicle covers 0.0003086 m

The speed of the vehicle in each second is given by 0.0003086 m/s

Converting it into Km/h

v = 0.00111 Km/h

Therefore, the speed of the vehicle changes in each second is, v = 0.00111 Km/h

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3 years ago

A car accelerates uniformly from rest tona speed of 30.0 mi/h in 12.0s. Find the distance the car travels during this time? Find

meriva

Answer:

2.5 mi/s^2

Explanation:

please see paper for work!

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2 years ago

E. weight = mass x gravitational field strength

allsm [11]

Answer:

e. weight = mass x gravitational field strength

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3 years ago

Urgent!!!

Luba_88 [7]

The area which touches the sand floor of 4 feet of the bull is less than the man.

because the area of surface of contact is more in bull than in man. More is the area of contact, leads is the force or pressure affected.

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3 years ago

A 60 Watt light bulb runs for 120 seconds. How much energy does it use?

sattari [20]

ENERGY = POWER X TIME
=60 X 120=7200KWh

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4 years ago