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An object is thrown downwardwith an initial speed of 15 m/s from a height of 83 mabove the ground. At the same instant,a second object is propelled verticallyfrom ground level with a speed of 24m/s. The acceleration of gravity is9.8m/s2 .
At what height above the ground will the two objects pass each other?
A 10.0-cm long wire has a diameter of 0.1 mm and a resistivity of 4.0 ´ 10-7 ohm-cm, A 6.0-volt battery is connected to the resistance, What current exists in the circuit
On wet pavement, the coefficient of kinetic friction may be only 0.25. How fast should you drive on wet pavement
an air bubble has a volume of 1.20 cm3 when it is released by a submarine 115 m below the surface of a lake. what is
a battery with an internal resistance rint can be modeled as an ideal battery in series with a resistor rint suppose a
Suppose a 400-kg alligator of length 3.7 m is stretched out on a board of the same length weighing 95 N. If the board is supported on the ends as shown in the figure, and the scale reads 1,686 N, find the x-component of the alligator's center of grav..
in a velocity selector the uniform magnetic field of 1.5 t is produced by a large magnet. two parallel plates with a
a rubber ball dropped from a height of 2 bounces back to a height of 1. draw the balls position and velocity graphs
Katherine is attempting a biceps curl with a 100 N dumbbell. She is standing upright, and her forearm is horizontal. What torque is created by the dumbbell about the elbow joint
assume you carry a bag of groceries weighing 127 N from your car to your kitchen, a distance of 57 m, without raising or lowering the bag.
Astronauts on the space shuttle used radar to determine the magnitudes and direction cosines of the position vectors of two satellites A and B. What is the angle between the two vectors rA and rB
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, identify the average resistance force exerted on him by the water.
question a. a 2300-kg satellite is orbiting the earth at an altitude equal to twice the earths radius.i find the
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