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The following footwear is best in the laboratory:
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
A hammer strikes a nail with a 10 N force for 0.01 seconds. Calculate the impulse of the hammer.
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of work, but different amounts of ________.
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
The recoil momentum of a cannon that kicks is _____ the momentum of the cannonball it fires.
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
Horseplay or practical jokes in the laboratory are
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
A high school student hits a nail with a hammer. During the collision, there is a force___________.
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
The following activity is permitted in the laboratory:
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
Which of the following has the least momentum?
always against the rules.
.01 kg mass moving at 200 m/s
close-toed shoes
power
none of these
0.10 kg m/s
the same as
on the nail and also on the hammer
Check it!