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The figure below shows two 28.0 kg ice sleds that are placed a short distance apart, one directly behind the other. A 3.4kg cat initially standing on one sled jumps to the other one and then back to the first. Both jumps are made at a speed of 2.7 m/s relative to the ice. What are the final speeds of the two sleds?
(m/s) first sled (left most sled)
(m/s) second sled (right most sled)
The horizontal component Fx is shown by the histogram below as function of position along x-axis. There is also a kinetic frictional force of 0.50 N between mass and surface.
A small, plastic sphere of mass m = 111 g is attached to a string There is an electric field of 122 N/C directed along the + x axis
The first skater carries a 2-m pole that may be considered massless. As he passes the pole, What is the angular speed after the skaters are linked together
A rock is thrown vertically upward from ground level at time t = 0. At t = 1.9 s it passes the top of a tall tower, What is the height of the tower
A proton with kinetic energy of 2.30 × 106 eV is fired perpendicular to the face of a large plate that has a uniform charge density, From what distance should the proton be fired so that it stops right at the surface of the plate
An electron beam accelerated through a potential difference of 250V, and passes through a small circular hole, What is the diameter of the hole
What is the coefficient of static friction among the coin and the turntable? Express your answer using two significant figures.
A proton moves perpendicular to a uniform magnetic field Barrowbold at a speed of 1.20 107 m/s, Determine the magnitude and direction of the field
The stirrer is used to stir the mixture until it reaches its last equilibrium temperature of 32°C. Analyse the mass of the aluminum cup.
A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}.
The third floor of a house is 7.00 m above street level. How much work is necessary to move a 143kg refrigerator to the third floor.
Two particles, with charges of q1 = 60.0nC and q2 = 60.0nC, are placed at the points with coordinates (0, 12.00 cm) and (0, 12.00 cm). A particle with charge q3 = 30.0 nC is located at the origin.(a) Find the electric potential energy of the confi..
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