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Question 1 :
A 2 kg book resting on a flat table requires an applied force of 4 N to make it move. Draw a free body diagram illustrating this situation and find the coefficient of static friction between the book and the table.
Question 2 :
A 30 kg crate is pulled across a flat floor with 80 N of force. The coefficient of kinetic friction between the crate and the floor is 0.15. Draw a free body diagram illustrating this situation and find the acceleration of the crate.
Question 3 :
An applied force of 100 N causes a 20 kg crate to accelerate across a level floor at 2 m/s2. Draw a free body diagram illustrating this situation and find the coefficient of kinetic friction between the crate and the floor.
Question 4 :
60 N of force is applied to a 10 kg crate initially at rest on a level floor. The coefficient of friction between the crate and the floor is 0.4. Draw a free body diagram illustrating this situation and find the distance traveled and the velocity of the crate after 3 seconds.
Question 5 :
Sue and Bill are standing on a frictionless surface of ice. Sue, whose mass is 60 kg, pushes Bill, mass 100 kg, with 300 N of force. Draw a free body diagram illustrating this situation and find the acceleration of both Sue and Bill.
De Broglie postulated that the relationship ? = h/p is valid for relativistic particles. What is the de Broglie wavelength for a (relativistic) electron
A block with a speaker bolted to it is connected to a spring having spring constant k and oscillates as shown in Figure P17.39. The total mass of the block and speaker is m, and the amplitude of this unit’s motion is A. The speaker emits sound waves ..
Calculate the net work done by the force of friction. A 1.50 m-long, 530 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.90 {rm m}/{rm s}^{2}. How much force pulls forward on (a) ice (b) rop..
A certain type of propeller blade can be modeled as a thin uniform bar 2.50m long and of mass 26.0kg that is free to rotate about a frictionless axle perpendicular to the bar at its midpoint. find the maximum angular acceleration the blade could ac..
A glass slides across a table top, goes off the edge, and falls onto the floor below. The table is 0.860 m high and the glass lands 1.82 m from th eedge? With what velocity did the glass leave the table top
A gymnast of mass 52.0kg hangs from a vertical rope attached to the ceiling, calculate the tension T in the rope if the gymnast hangs on the rope
A convex lens is made of crown glass with index of refraction n=1.5296 at 480.0 nm and n=1.5203 at 656.3 nm. the radius of curvature of each face is 6.500 cm. Find the focal length of the lens at each wavelength.
The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box is heavier and rests on a ramp that is less steep. The boxes are released from rest at A and allowed to slide down the ramp..
a space vehicle is coasting at a constant velocity of 21.1 ms in the y direction relative to a space station. the pilot
In a 290-turn automobile alternator, the magnetic flux in each turn is %u03A6B = 2.50 10-4 cos %u03C9t, Determine the maximum emf in the alternator
A motorcycle and 56.0 kilogram rider accelerate at 2.7 m/s2 up a ramp inclined 10 degree above the horizontal. Determine the magnitude of the net force on the rider
A child and sled with a combined mass of 48 kg slide down a snow-covered (and frictionless) hill. Find the kinetic energy at the top of the hill
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