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A block of mass 2.50 kg is pushed 2.20m along a frictionless horizontal table by a constant 18.0 N force directed 25.0° below the horizontal.(a) Determine the work done by the applied force.(b) Determine the work done by the normal force exerted by thetable.(c) Determine the work done by the force of gravity.(d) Determine the work done by the net force on the block.
an object having a mass of 8.0 g and a charge of 10.0 x 10-5 c is placed in a uniform electric field e where ex 2.00 x
A prehistoic bug (m=0.02kg) has escaped into the moder world. how fast (and in what direction) is the ubg traveling after the collision
in haiti public transportation is often by taptaps small pickup trucks with seats along the sides of the pickup bed and
A 50-kg pilot comes out of a vertical dive in a circular arcsuch that at the bottom of the arc her upward acceleration is 8.5g. what is the radius of the circular arc
A child and sled with a combined mass of 57.0 kg slide down a frictionless slope. what is the height of the hill
The left side of the figure shows a light (`massless') spring oflength 0.350 m in its relaxed position. It is compressed to 74.0percent of its relaxed length, and a mass M= 0.110 kg is placed ontop and released from rest.
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.210 rev/s . The magnitude of the angular acceleration is 0.881rev/s . Both the the angular velocity and angular accleration are directed clockwi..
A 7.42-g bullet is moving horizontally with a velocity of +362 m/s, where the sign + indicates that it is moving to the right, find the velocity of the second block after the bullet imbeds itself
A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.
Find the center of mass of a system composed of three spherical objects with masses of 3.4kg , 2.3kg , and 4.2kg and centers located at (-6.2m , 0), (2.0m , 0), and (2.8m , 0), respectively.
An atom in a solid vibrates at 16THz with amplitude 13pm. Find the atom's maximum acceleration. Then, if it's a carbon atom, what's its energy
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