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A block whose mass is M = 33 kg is pushed across a frictionless surface by a stick whose mass is 3.2 kg. The block is moved 77 cm in 1.7 s at constant acceleration. If the block was originally at rest how much force did the stick apply to make it move like that? Now assume we place the block on a new flat surface such that there is a friction between the box and the surface it rests on so that the block will move only if a force of 11 N applied to it; and the stick will move it with the same acceleration as in the previous part of the problem. What is the coefficient of static friction in this case.
A 72.5 kilogram astronaut pushes to the left on a spacecraft with a force in "gravity-free" space. Obtain the magnitude of the acceleration of the spacecraft
A certain conductor has 7.80*1028 free electrons per cubic meter, across-sectional area of 4.00 multiplied by 10-6 m2, and carries a current of3.50 A. Discover the drift speed of the electrons in the conductor
A light ray initially in water enters a transparent substance at an angle of incidence of 39.0°, Calculate the speed of light in the transparent substance
A coherent beam of 1.937 eV photons is incident on a double slit. A screen is L = 1.8 m away from the source and the width of each slit is a = .010 mm. What would the kinetic energy of one of these electrons have to be
How much heat does it take to enhance the temperature of 8.00 of an ideal monatomic gas from 22.0 to 61.0 if the gas is held at constant volume.
An electron with kinetic energy 1.50 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 44.0 cm.
A wheel released from rest is rotating with constant angular acceleration of 2.7 rad/s2. (a) After 4.5 s, what is its angular velocity? in rad/s (b) Through what angle has the wheel turned? in rad
A particular organ pipe can resonate at 213 Hz, 355 Hz, and 497 Hz, but not at any other frequencies in between. What is the fundamental frequency of pipe.
A 1400 kg block is lifted at a constant speed of 4 cm/s by a steel cable that passes over a massless pulley to a motor-driven winch. What force must be exerted by the cable
a curve in a road forms part of a horizontal circle. as a car goes around it at constant speed of 14m/s the horizontal total force on the driver has magnitude 147n, find the total horizontal force at the same curve
A golf ball of mass 0.045 kg is hit off the tee at a speed of45 m/s. The golf club was in contact with the ball for 5.0 x10-3 s. evaluate the average force exerted on the ball by the golfclub
Atennis ball of mass 5.5*10-2and a speed of 39 M/s strikes a wall at a 45 degree angle, what is the direction of of the balls impuse in relation to the wall
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