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pakilina
Questions (21)
The charged plates of a parallel plate capacitor each have a charge density of sigma C/m^2. Using Gauss's law, compute the
1 answer
563 views
A graphite rod is 1.0 m long, with a 1.0 cm by 0.5 cm rectangular cross sectional area. What is the electrical resistance
1 answer
565 views
A torque of 0.97 N-m is applied to a bicycle wheel of radius 0.35 m and mass 0.75 kg. Treating the wheel as a hoop, find its
1 answer
1,054 views
The moment of inertia of a 0.98 kg bicycle wheel rotating about its center is 0.13 km-m^2. What is the radius of the wheel?
1 answer
1,371 views
The collision between a nail and hammer can be considered to be approximately elastic. Calculate the kinetic energy acquired by
0 answers
700 views
A street ball bearing of radius 0.50 cm is rolling along a table at 20cm/sec when it starts to roll up an incline. How high
0 answers
514 views
find the rotational kinetic energy of the earth about the sun due to its orbital about the sun. The mass of the each M is 6 X
0 answers
574 views
A solid ball of radius b and mass m is released from the top of an incline of the incline is at the height h above the ground.
1 answer
572 views
A ball of mass moves in a horizontal circular path of radius a with speed v as shown in the illustration below. Find the tension
0 answers
435 views
A ball of mass m is rotated at constant speed v in a vertical circle of radius r as shown below. Find the tension in the cord
1 answer
763 views
A wheel with 50 cm diameter is moving at a speed of 20 m/sec. (a) How fast is the wheel turning? (b) How many revolutions will
1 answer
1,180 views
A wheel is turning at a speed of 2.0 rev/sec and is allowed to coast to rest. If it does so in 30 sec, how far did it turn in
1 answer
609 views
(a)Calculate the work done by moving a 50 kg mass along each of the legs of the path shown below. What is the total work
0 answers
467 views
A piano of mass 800 kg is hoisted up to a 15 meter height. Just then, the rope breaks with the piano plummeting down to the
1 answer
495 views
A 60 kg skydiver moving at terminal speed falls 50 m in 1 sec. What power is the skydiver expending on the air? The terminal
2 answers
3,199 views
A man whose mass is 70 kg walks up to the third floor of a building. This is a vertical height of 12 m above the street level.
(a
1 answer
4,210 views
A 2 kg block is pushed 2 m along a fixed horizontal surface by a horizontal force of 20 N. The coefficient of kinetic friction
1 answer
694 views
Your electricity usage for a one month period is 500 kilowatt-hours. Assuming one month is equal to 30 days and that the
1 answer
561 views
A 2kg block is placed onto a vertically oriented spring whose spring constant k is 1960 N/m. Find the distance that the spring
0 answers
538 views
A body slides down a curved track which is one quadrant of a circle of radius R. If it starts from rest at the top of the track
1 answer
1,096 views
The scale of a certain spring balance reads 1200 N when the spring is stretched 0.1m.
(a) What is the potential energy of the
0 answers
561 views
