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IceJOKER [234]
3 years ago
9

What is the difference between speed and volocity?

Physics
1 answer:
Sliva [168]3 years ago
3 0
The average speed is the distance per time ratio. velocity is the rate at which the position changes
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3 years ago
758 j of heat are added to 0.750 kg of copper. how much does its temperature change?(unit=degrees c) PLEASE HELPPPPPPP MEEEEEE
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Answer:

2.6^{\circ}C

Explanation:

When a substance is supplied with a certain amount of heat energy, the temperature of the substance increases according to the equation

Q=mC\Delta T

where

m is the mass of the substance

Q is the amount of energy supplied

C is the specific heat of the substance

\Delta T is the temperature change

In this problem:

Q = 758 J is the energy supplied

m = 0.750 kg is the mass of the sample

C=385 J/kg^{\circ}C is the specific heat of copper

Re-arranging the equation, we can find the increase in temperature:

\Delta T=\frac{Q}{mC}=\frac{758}{(0.750)(385)}=2.6^{\circ}C

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