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A force of 35.0 N is required to start a 6.0-kg box moving across a horizontal concrete floor. Part A What is the coefficient of static friction between the box and the floor? Express your answer using two significant figures. s = SubmitGive Up Part B If the 35.0-N force continues, the box accelerates at 0.44 m/s2 . What is the coefficient of kinetic friction? Express your answer using two significant figures. k =
How much work would be required for an external force to move a +0.60 μC test charge from a point midway between them to a point 12 cm closer to either of the charges?
A short blast of sound with frequency 335 Hz is created by a speaker that projects the sound equally in all directions. what was the power of the blast
A spherical satellite with a radius of 75m is spinning over its own axis with an angular speed of 232rad/s. What is the angular momentum after the failure
Two tuning forks are played at the similar time in a room where the velocity of sound is 340 m/s. One of them has a frequency of340 Hz and the other a frequency of 360 Hz. What is the beat frequency? What is the successive time among beats?
A red blood cell typically carries an excess charge of about –2.5×10–12 C distributed uniformly over its surface. The red blood cells can be modelled as spheres approximately 6.6 m in diameter and with a mass of 9.0×10–14 kg.
A cycle wheel rotates uniformly through 2.0 revolutions in 4.0 second. Find what is the frequency of the wheels rotation
A 150MW laser pulse is focused with a lens to a diameter of 2.0m. What is the laser beams electric field amplitude at the focal point
Calculate the expectation values of the energy,L^2 and L_z L^2 and L_z L^2 and L_z
Suppose the ray, in air with n = 1.00, enters a slab with n = 2.37 at a 37.4° angle with respect to the normal, At what angle to the normal does the ray leave the slab
sheena can row a boat at 2.95 mih in still water. she needs to cross a river that is 1.17 mi wide with a current
a person is standing on the roof of a tall building. she throws a ball from the top of the building in such a way that
A friend of yours is 41 meter directly to your left. You and she start running at the same time, and both run in straight lines at constant speeds. Evaluate how fast must she run
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