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If a ball is dropped from a cliff with an initial velocity of 25m/s, with a direction of 40 degrees out from the y axis and takes 3.75 seconds to hit the ground, find: a) height of the cliff b) how far the ball lands away from the cliff c) velocity of the ball just before it hits the ground
An event occursin system K' at x' = 2m , y'=3.5mz'= 3.5 m and t'=0. What are the coordinates of the event in sytem
A 5 kg block, measuring 10 cm per side, is held 50% submerged in water by a helium balloon. what is the diameter of the balloon
the coefficient of static and kinetic frictions between a 3 kg box and a desk are .4 and .3 respectively. what is the
A horizontal wire rod is free to slide on a vertical conducting. The wire has mass 7 kg and length 7 m, find the terminal velocity of the wire
Four identical springs support equally tghe weight of a 1300 kg car. the car driver goes over a speed bump, find the oscillation period
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 3781 kg), which is made of steel (? = 7850 kg/m3). In typical comic-book fashion, they decide to raise the yacht (which is now on the bottom of a lake) by filling it with ping-p..
A hypodermic syringe is attached to a needle that has an internal radius of 0.301 mm and a length of 3.05 cm. What must the pressure of the fluid in the syringe be in order to inject the solution at a rate of 0.253 mL/s
compute the reactance of a .450 h inductor at frequencies 60hz compute the reactance of a 2.5 uf capacitor at the same
A charge of -3.65 nC and a charge of -6.70 nC are divorced by a distance of 70.0 cm. Find the position at which a third charge of +7.30 nC can be placed so that the net electrostatic force on it is zero.
An auto race is held on a circular track. A carcompletes one lap in a time of 18.9 s, with an average tangentialspeed of 42.6 m/s. evaluate the radius of the track
question a 60.0-kg person rides in an elevator while standing on a scale. the scale reads 400 n. what is the
A 1200 kg ore cart is rolling at 10.8 m/s across a flat surface. A crane dumps 493 kg of ore (vertically) into the cart. How fast does the cart move after being loaded with ore? Assume that frictional forces with the flat surface may be neglected.
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