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A steel ball by mass 40.0 g is dropped from a height of 3.20 m onto a horizontal steel slab. The ball rebounds to a height of 1.30 m.
1) Compute the impulse delivered to the ball through impact.
2) If the ball is in contact with the slab for 3.00 ms, discover the average force on the ball through impact.
A 2000kg vehicle is travelling down the road at 20m/s (45 mph) when it reaches an intersection. Between rubber and dry asphalt, the coefficient of friction is 0.80. What is the minimum distance necessary for the car to stop.
a uniform electric field of magnitude 390 nc pointing in the positive x-direction acts on an electron which is
Converting sunlight to electricity with solar cells has an efficiency of 15%. What is the theoretical maximum efficiency
Two people carry a heavy electric motor by placing it on a light board 2.00 m long. One person lifts at one end with a force of 100 N, and the other lifts the opposite end with a force of 900 N.
A child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east. The child is 0.6 km from the shore and 2.5 km upstream from the dock. A rescue boat with speed 24.8 km/hr (with respect to the water) ..
A small but measurable current of 7.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm, calculate the current density and electron drift speed
A proton and electron moving with the same speed enter the magnetic field of the earth at the same angle, what type of trajectory will each particle follow in the earth's magnetic field
Two point charges, +3.00 µC and -6.10 µC, are separated by1.50 m. What is the electric potential midway between them
Gasoline flows through a horizontal pipeline with a flow rate of 25 ft 3 / min. calculate the pressure in this pipe
Compute the linear momentum and angular momentum of a Frisbee of mass 0.144 kg if it has a linear speed of 1.75 m/s and an angular velocity of 64.0 rad/s
grinding wheel is initially at rest. A constant external torque of 47.2 N· m is applied to the wheel for 18.8 s, Find the moment of inertia of the wheel
a 0.400 ice puck moving east with a speed of 2.50 has a head-on collision with a 0.900puck initially at rest. what
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