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John throws a baseball from the outfield from shoulder height, at an initial velocity of 29.4 m/s at an initial angle of 30.0? with respect to the horizontal. The ball is in its trajectory for a total interval of 3.00 s before the third baseman catches it at an equal shoulder-height level. (Assume air resistance negligible.) What is the ball's horizontal displacement?
A particle attached to a spring with k 50 N/m is undergoing simple harmonic motion, and its position is described by the equation x (5.7 m)cos(7.5t), What is the maximum potential energy
A negative charge, -q, has a mass, m, and an initial velocity, v, but is infinitely far away from a fixed large positive charge of +Q and radius R such that if the negative charge continued at constant velocity it would miss the center of the fixe..
one of your summer lunar space camp activities is to launch a 1130-kg rocket from the surface of the moon. you are a
The drawing shows four point charges. The value of q is 1.83 µC, and the distance d is 0.99 m. Find the total potential at the location P
A wheel of mass m = 16kg and radius r = 0:5m is connected to a motor that causes it to attain rotational speed of w = 20rads^-1 in 10s, What is the average torque applied to the wheel by the motor
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. determine the length of each side of the cube
On an icy (nearly frictionless) street a 600 kg car traveling straight east at 5 m/s collides with a 1000 kg car traveling straight north at 3 m/s. what is the final speed of the second car
A certain resistor has a resistance of 1.484 ohms at 20.0 degrees celsius and a resistance of 1.512 ohms at 34.0 degrees celsius. What is its temperature of resistivity
A barefoot field-goal kicker imparts a speed of 49 m/s to a football initially at rest. find the force exerted by the ball on the kicker's foot
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 48Nm. With what force must you pull
A home run just clears a fence 105 m from home plate. The fence is 4.00 m higher than the height at which the batter struck the ball, At what speed did the ball leave the bat
A 20kg ball is moving at 10 m/s in the positive direction of the x axis when it collides with a 10kg ball initially at rest. calculate the speed of both balls after the collision
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