True/False. Mark your answers to the left of each question. a. Two solid spheres with the same...

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Physics

True/False. Mark your answers to the left of eachquestion.
a. Two solid spheres with the same diameter but different masseswill
experience the same acceleration when dropped from the sameheight.
b. A load being lifted by a crane at a constant velocity has no netforce acting
on it.
c. After a firecracker, initially at rest explodes, the totalmomentum of all of
the pieces is no longer zero.
d. Two solid spheres with different diameters but the same mass arerolled
down an incline. The sphere with the smaller diameter willaccelerate
faster.
e. The work done by the net force on an object always causes achange in
objects speed.
f. In an inelastic collision momentum is not conserved.
g. An object in equilibrium has no net torque around any pivotpoint.
h. The period of a pendulum decreases if the mass of thependulum
increases.
i. If all of the forces on a system at rest are internal forces,the center of
mass cannot change.
j. If the pressure of an ideal gas is doubled at constanttemperature and
number of molecules, the volume of the gas must be halved.
k. The average velocity of molecules in an ideal gas isproportional to three
times the temperature.
l. An isolated system in thermal equilibrium has its maximum valueof
entropy.

Answer & Explanation Solved by verified expert

3.6 Ratings (634 Votes)

a TRUE since when dropped Vi0ms ag98 ms2 Using the kinematic equation h Vit12at2 we get h12gt2 which is independent of mass b TRUE At constant velocity no acceleration hence Fnet ma0N c FALSE here momentum is conserved ib both elastic See Answer

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