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You are about shoot two equal cannonballs straight up into the air. The first cannonball has 5.0 times as much initial velocity as the second. Obtain how many times higher will the first cannonball go compared to the second?
A stone has a mass of 4.00 x10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.76.
a young woman named kathy kool buys a sports car that can accelerate at the rate of 4.90 ms2. she decides to test the
for a particle in a one demention box, the ground state wave function is: psi=(2/L)^1/2 sin(piX/L), What is the probebility that the particle is in the right-hand half on the box
A 4.0 kilogram particle starts from rest at x = 0 and moves under the influence of a single force Fx = 6 +4x - 3x2, Determine the work done by the force as the particle moves from x = 0 to x = 1.0 meter
a block, m= 3 kg, slides on a frictionless horizontal surface.It then goes up a 15 degree incline having a coeffecient offriction uk=0.30 a distance L before stopping. find the acceleration of the block on the plane
You toss a ball straight up in the air. Immediately after you let go of it, what forces are acting on the ball
A person is riding a bicycle, and its wheels have an angularvelocity of 27.6 rad/s. Then, the brakes are applied and the bikeis brought to a uniform stop. During braking, the angular displacement of each wheel is 13.2revolutions.
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12.0 m/s at an angle 47.0 degrees, obtain the maximum height the ball goes above the ground
if the radius of the equipotential surface of a point charge is 23.0m and is at a potential of 1.30kv compared to zero
A horizontal board weighing 205.0 N is supported at points A and B in the figure below. The plank servesas a platform for a painter, who weighs 604.5 N. Find the maximum distance D, suchthat the plank will not tip, no matter where the painter stands.
A uniform rod of mass 3.20×10?2 and length 0.430 rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. find the angular speed of the rod after the rings leave it
A rock is thrown from the roof of a building with a velocity vo and an angle of alpha(o) from the horizontal, Calculate the magnitude of the velocity of the rock just before it strikes the ground
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