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Physics. PLEASE HELP!!
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Two ice skaters hold hands and rotate, making one revolution in 7.6 s. Their masses are 15 kg and 50 kg, and they are separated
5 answers
asked by
Amber
5,138 views
A Ferris wheel rotates 4 times each minute and has a diameter of 17 m.
The acceleration of gravity is 9.8 m/s2. What is the
4 answers
asked by
Ashley
1,040 views
A small car of mass 985 kg is parked behind a small truck of mass 1551 kg on a level road. The brakes of both the car and the
4 answers
asked by
Amber
2,183 views
Consider a wheel (solid disk) of radius
0.748 m, mass 16 kg and moment of iner- tia 1/2 MR^2 . The wheel rolls without slipping
4 answers
asked by
Amber
953 views
A force F=Fx ˆi + Fy ˆj + Fz ˆk acts on a particle located at X= (x, y, z). Given Fx=−88.3N, Fy=7.56N, Fz=60N, x= −3.65m,
4 answers
asked by
Amber
996 views
A Ferris wheel rotates 4 times each minute and has a diameter of 17 m.
The acceleration of gravity is 9.8 m/s2. What is the
4 answers
asked by
Ashley
671 views
A small, spherical bead of mass 1.9 g is released from rest at t = 0 in a bottle of liquid shampoo. The differential equation of
1 answer
asked by
Ashley
617 views
Find the power input of a force
F=(7 N)ˆý + (3 N) ˆk acting on a particle that moves with a velocity v = (6 m/s)ˆý. Answer
2 answers
asked by
Ashley
892 views
Find the power of a force
F= (10 N)ˆý +(−4 N)ˆj if the velocity v = (−4 m/s)ˆý +(4 m/s)ˆj. Answer in units of W (^i and
2 answers
asked by
Ashley
769 views
NOTE: 1 MJ = 106J.
One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne
3 answers
asked by
Ashley
539 views
A skier of mass 71 kg is pulled up a slope by a motor-driven cable.
The acceleration of gravity is 9.8 m/s2. How much work is
4 answers
asked by
Ashley
747 views
A 22 kg girl slides down a playground slide that is 3.6 m high. When she reaches the bottom of the slide, her speed is 1.7 m/s.
T
2 answers
asked by
Ashley
657 views
When a 0.35 kg baseball is hit, its velocitychanges from 21 m/s to -29.5 m/s. What is the magnitude of the impulse de-livered by
4 answers
asked by
Amber
431 views
A 1.3 kg steel ball and 8 m cord of negligi-ble mass make up a simple pendulum that can pivot without friction about the point
2 answers
asked by
Amber
1,108 views
A ball bounces to 45 percent of its original height.
What fraction of its mechanical energy is lost each time it bounces? What is
3 answers
asked by
Amber
1,206 views
A ball bounces to 45 percent of its original height.
What fraction of its mechanical energy is lost each time it bounces? What is
2 answers
asked by
Amber
574 views
A 1.2 m diameter wagon wheel consists of a thin rim having a mass of 11 kg and six spokes, each with a mass of 1.1 kg. Find the
3 answers
asked by
Amber
2,448 views
A uniform disk with a mass of 130 kg and a radius of 1.2 m rotates initially with an angular speed of 950 rev/min. A constant
4 answers
asked by
Amber
528 views
Two ice skaters hold hands and rotate, making one revolution in 7.6 s. Their masses are 15 kg and 50 kg, and they are separated
2 answers
asked by
Amber
623 views
A force F=Fx ˆi + Fy ˆj + Fz ˆk acts on a particle located at X= (x, y, z). Given Fx=−88.3N, Fy=7.56N, Fz=60N, x= −3.65m,
2 answers
asked by
Amber
485 views