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You and a friend are in a small boat on Table Rock Lake. When the boat is not moving with respect to the water, you and your friend exchange position in the boat. The seats are 1.5 meters apart. The boat moves 25cm relative to the water as a result of you changing position in the boat. Determine the mass of your friend, if your mass is 80 kg and the mass of the boat is 30 kg. Assume that you are heavier than your friend.
A mass of 12.2 kg is attached to a string which is wrapped around a cylindral spool of radius 10 cm and moment of inertia 4.00 kg* m square.
A square, single-turn wire loop 1.00 cm on a side is placedinside a solenoid that has a circular cross section of radius 3.00cm. find the magnitude of the average induced emf in the loop
An object through a rectangular
A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1330 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1, How long is the wire
A cannon fires up at an angle of 30 degrees above the horzontal with a muzzle velocity of 40 m/s. How far from the base of the wall dos the cannon ball travel
Two 2.7cm -diameter disks face each other, 2.7mm apart. They are charged to ±14nC. What is the electric field strength between the disks
Three 1.50-V cells, each with an internal resistance of 0.0500?, are connected in series to form a battery with a current of 0.850A in each cell. Find the current in the external circuit
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
a stone is thrown vertically upward from a point on a bridge located 40 m above the water. knowing that it strikes the
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.5 mm. What is the resistance ratio RA/RB, measured between their ends
How will their speeds to relate to each other when they land? Ignore air resistance. Clarify with graph. Draw a graph and explain why it happens.
A double-concave lens has equal radii of curvature of 15.1 cm. An object placed 14.2 cm from the lens forms a virtual image 4.94 cm from the lens. What is the index of refraction of the lens material
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