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A 98.8-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is ?k = 0.596.
(a) What is the magnitude of the frictional force?
(b) If the player comes to rest after 1.30 s, what is his initial speed?
A tendon is 5.2 cm long, has a cross-sectional area of 0.00006 m2 and has an average elastic modulus of 1.2 GPa. It is stretched with a force of 2400 N, What is the tendon stress
A 0.7 kW heater is designed to operate at 210 V. Assume that its resistance is constant. What is the power dissipated in this resistor if it operates at 120 V
suppose that E = 50.0V , R = 210? and L = 0.140H . With switch S2 open, switch S1 is left closed until a constant current is established. Which point is at a higher potential
A flat circular coil with 110 turns, a radius of 3.80 × 10-2 m, and a resistance of 0.340 ? is exposed to an external magnetic field that is directed perpendicular to the plane of the coil, Find the induced current in the coil
A 17.0 m-long copper wire, 3.00 mm in diameter including insulation, is tightly wrapped in a single layer with adjacent coils touching, What is the length of the solenoid
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +3q. Sphere B carries a charge of -q. compute the ratio of the final charge on sphere
Estimate the volume of your body. (Consider your body to be a cylinder having a radius of about 6 inches ( or 0.15m and a height of about 1.5 meters)
Ball 1, with a mass of 110g and traveling at 15m/s, collides head on with ball 2, which has a mass of 300g and is initially at rest, What are the final velocities of each ball if the collision is perfectly elastic
An isolated conductor of arbitrary shape has a net charge of 6.0 uC. Inside the conductor is a cavity within which is a point charge 66.5 uC, What is the charge on the outer surface of the conductor
A plastic bag is filled with hydrogen at atmospheric pressure and 23.0 oC. what is the required volume of the balloon if the air inside can be maintained at 43.0 oC
Three filaments with ratings P1 = 60 W, P2 = 80 W, and P3 = 180 W are connected parallel to a 120 V outlet. How much total current is drawn
An object with a mass of 4.0 Kg travels with a constant velocity of 8.5m/s northward. How far will the object travel before coming to rest
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