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Two blocks, m1=1.0kg and m2=2.0kg are connected by a light string over a pulley. If the radius of the pulley is 1.0m and its moment of inertia is 5.0 kg*m^2, what is the acceleration of the system?
A point P is on a rim of a wheel of radius 2.0m. At time t=0 wheel is at rest and P is on the x-axis. The wheel undergoes a uniform angular acceleration of 0.01 rad/s2 about the center O. Find out the time t, when P returns to an original position on..
Calculate each star's speed, and state whether it is moving toward or away from us.
A dentist uses a small mirror of radius 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 14 mm from the tooth, what is the magnification of the resulting image.
A rock is thrown vertically upward with a speed of 15.0m/s from the roof of a building that is 40.0m above the ground, What is the speed of the rock just before it strikes the ground
Some sliding rocks approach the base of a hill with a speed of 18.0m/s . The hill rises at 40.0? above the horizontal and has coefficients of kinetic and static friction of 0.390 and 0.650, Find the acceleration of the rocks
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
when a dime (diameter 1.624 cm) is placed straight over it, bubble can be seen by looking down into the cube. What are upper and lower bounds of the range of the possible depths of the air bubble beneath surface.
1) Compute the change in the internal energy of a thermodynamic system under the following scenarios: (i) 50 J of heat added and 40 J work extracted, (ii) 50 J of heat added and 75 J work extracted,
What is amplitude of the subsequent oscillations
0.700-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at 20.0 m/s perpendicular to wall, What is the magnitude of the change in momentum of the stone
A 16-cm-diameter cylinder that is 39cm long contains 60g of oxygen gas at 20?C, What is the number density of the oxygen
A coil is wrapped with 309 turns of wire on the perimeter of a circular frame (of radius 50cm). Each turn has same area, equal to that of the frame.
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