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A ceiling fan with 89.00 cm diameter blades is turning at 61rpm. Suppose the fan coasts to a stop 26s after being turned off.
A hot-air balloon has just lifted off and is rising at the constant rate of 2.2 m/s . Suddenly one of the passengers realizes she has left her camera on the ground.
What should the charge (sign and magnitude) of a particle of mass 1.21 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
An air puck of mass 0.029 kg is tied to the string and allowed to revolve in a circle of radius 2.0m on a frictionless horizontal surface. The other end of the string passes through a hole in the center of surface, and a mass of 2.6 kg is tied to it...
Two spherical objects have a combined mass of 200. The gravitational attraction between them is 8.01×10-6 while their centers are 21.0 apart.
What is the electric field strength at midpoint between two disks.What is the electric field strength a point on axis 5.0 cm from one disk between them.
What is an average number of ozone molecule
A ball is thrown from a rooftop with an initial downward velocity of magnitude vo = 5.8 m/s. The rooftop is a distance above the ground, h = 43 m.
A 1360 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from the far end of the beam.
A skier of mass 62.00 kg is pulled up a slope by a motor-driven cable. (a) Explain how much work is required to pull him 55.00 m up a 30° slope (assumed frictionless) at a constant speed of 3.40 m/s?
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A 258-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.980, and the log has ..
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