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A major league player hits a ball so that it leaves the bat with a speed of 30.0 m / s and an angle of 36.9 ° above the horizontal. Ignore air resistance. What is the first instant of time that the ball was 10.0 m above the point where it came off the bat?
A wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time.
When the altitude of the plane is 1.9 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle ??
120 g ball moving to the right at 4.1m/sec catches up and collides with a 450 g ball that is moving to the right at 1.2 m/sec what is the speed of both balls after the collision?
suppose a parallel plate capacitor with capacitance c1 is fully charged to a value qo by a battery. the battery which
a 10 kg sled slides down a snowy hill. At position A it is moving at 1.00 m/s when it reaches position B it is moving at 3 m/s. What is the work done by friction on the sled
A tennis player receives a shot with the ball (0.0600 kilogram) traveling horizontally at 40.0 m/s in the opposite direction. Determine the impulse delivered to the ball by racket
What are some differences between laser light and “normal” light? In this regard,why did Thomas Young need the first single slit in his famous experiment?
a convex lens is held over a piece of paper outdoors on a sunny day. when the paper is held 21 below the lens the
An 18.0 kilogram package slides down a 38.0 degree incline and accelerates at 0.272 m/s2. Determine the friction force impeding its motion
A jet plane traveling 1840km/h (511m/s ) pulls out of a dive by moving in an arc of radius 5.40km , what is the planes acceleration in g's?
A 3.45 kg mass vertically compresses a spring 67.0 cm before it starts to rebound. How high will the Mass move above the uncompressed
A 10-kg object on a frictionless table is subjected to two horizontal forces, F1→ and F2→ with magnitude F1 = 20 N and F2 = 30 N, as shown in Figure 4-40. Find the third horizontal force F3→ that must be applied so that the object is in static equili..
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