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an antelope moving with constant acceleration covers thedistance between two points 70.0m apart in 7.00s. its speed as itpasses the second point is 15m/s.
a) what is its speed at the frist point?
b) what is its acceleration?
A 73.0 kg base runner begins his slide into second base when he is moving at a speed of 4.4 m/s. How much mechanical energy is lost due to friction acting on the runner
A traveler first drives 18.8 km east, then 31.8 km southeast, and finally 11.1 km south. Find the traveler's total displacement
How much work is needed to push a 137- kg packing crate a distance of 2.65 m up an inclined plane that makes an angle of 27 o with the horizontal, when inclined plane is frictionless
To warm up for a match, a tennis player hits the 56.0 ball vertically with her racket. what impulse did she impart to it
A brick is initially 14.80 cm high and an aluminum can is initially 14.81 cm high. By how much must their temperatures be raised
A hydrogen atom is in its second excited state, n=3. Find the total energy of the atom
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 12.3 m/s toward the east, find the initial speed of the northward-moving vehicle
A 2.1-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.36 m above the lowest part of the slide and the s..
A 4.3-m-tall, 50-cm-diameter concrete column supports a 1.0×105{\rm kg} load. By how much is the column compressed
A place kicker must kick a football from a point 34 m (about 37 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 23 m/s at an angle of 55 to the horizontal. By how..
A 1.08 µF capacitor is connected in series with a 2.18 µF capacitor. The 1.08 µF capacitor carries a charge of +11.1 µC on one plate, Find the equivalent capacitance of the two capacitors
Ice of mass 11.0 kg at 0.00° C is placed in an ice chest. The ice chest has 3.10 cm thick walls of thermal conductivity 1.00 x 10^-5 kcal/s · m · C°, How much heat must be absorbed by the ice before it melts
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