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abruzzese [7]
3 years ago
13

What velocity must a 1210 kg car have in order to have the same momentum as the pickup truck in the sample problem

Physics
1 answer:
harina [27]3 years ago
3 0

Answer:

P=mv 2250*25=56250

Explanation:

p of truck =2250*25 =56250

since p of truck = p of car

then p of car = 56250

therefore p of car = 1210 * v

or, 56520=1210v

or,v= 56520/1210=46.48

so, v of car is 46.48m/s

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Answer:

have tried it and the units end up being Nm^-2 (the unit of stress) however the unit for joules is Nm.

Source https://www.physicsforums.com/threads/why-does-1-2-stress-strain-equal-the-energy-stored-per-unit-volume-in-a-wire.565495/

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How does a blue object look under all colors of light
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3 years ago
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3 years ago
Which of the following is not a transverse wave?A) soundB) lightC) radioD) all of theseE) none of these
quester [9]
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7 0
3 years ago
A 5.0-kg block of wood is placed on a 2.0-kg aluminum frying pan. How much heat is required to raise the temperature of both the
Shalnov [3]

Heat required to raise the temperature of a given system is

Q = ms\Delta T

here we know that

m = mass

s = specific heat capacity

\Delta T = change in temperature

now as we know that

mass of wood = 5 kg

mass of aluminium pan = 2 kg

change in temperature = 45 - 20 = 25 degree C

specific heat capacity of wood = 1700 J/kg C

specific heat capacity of aluminium = 900 J/kg C

now here we will find the total heat to raise the temperature of both

Q = m_1s_1\Delta T_1 + m_2s_2\Delta T_2

Q = 5 * 1700 * 25 + 2 * 900 * 25

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Q = 257500 J

So heat required to raise the temperature of the system is 257500 J

4 0
3 years ago
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