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A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.442 and the coefficient of kinetic friction is 0.240.
How much force is needed to begin moving the book?
How much force is needed to keep the book moving at constant speed once it begins moving?
A technician wraps wire around a tube of length 37 cm having a diameter of 8.2 cm. what is the self-induced emf in the solenoid
A vertical spring with a spring steady of 420-N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest.
a record is turning at the rate of 33 r.p.m. when the 45 r.p.m. button is pressed. what is the angular acclereration of the record
An underwater diver sees the sun 50 degrees above horizontal. How high is the sun above the horizon to a fisherman in a boat above the driver.
A luminous object is 3.60m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
In a Compton scattering experiment, the scattered electron is observed to move in the same direction, what is the scattering angle of the photon
The electric field on the x-axis due to a point charge fixed at the origin is given by E=(b/x^2)i, Find the magnitude and sign of the point charge
In a science fiction movie, a 100 g base ball travelling with a speed of 60 m/s and an electron travelling at a speed of 1.2 x 10^8 m/s are approaching each other for a head-on collision
a loaded cart has a total mass of 227kg.if a 312n force acting at an angle of 30degree to the ground is applied. how
A converging lens (f = 11.9 cm) is located 30.6 cm to the left of a diverging lens (f = -5.94 cm). calculate the overall magnification
A car is traveling at 15 m/s on a horizontal road. The coefficient of kinetic between the tires and road is
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force
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