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Through 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.396 km/min, 0.222 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
q1. for safety in climbing a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. whilst supporting
A small camera has a lens with focal length f=15 mm has a movable lens that can be focused on objects as close as 20 cm or as far away as infinity (relative to f). What is the optimum lens-film distance
Two objects of masses m and 3.00 m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left.
two identical metal spheres a and b are connected by a metal rod. both are initially neutral. 1.6times1012 electrons
A superball with a mass m = 61:6 g is dropped from a height h = 1.76m. What is the momentum change of the ball during its collision with the floor
Pilots can be tested for the stress of flying high-speed jets in a whirling "human centrifuge" which takes 1.0 min to turn through 20 complete revolutions before reaching its final speed. what was its final speed in rpm
four identical metallic objects carry the following charges 1.0 microc 5.0 microc -6.6 microc and -8.0 microc. the
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. What will be the acceleration of the bags when you let go of the anchor bag
find its velocity after the explosion. The man pulls the boy up to the tree limb C by walking backward at a constant speed of 1.1 m/s. find out the speed at which the boy is being lifted at the instant x_A = 4 {rm m}.
A block of plastic (0.7 kilogram) is sitting on a rough horizontal plane (μk = 0.4). Find what is the speed of the block after the bullet passes through it
Large insects such as locusts can jump as far as 75cm horizontally a level surface. An entomologist analyzed a photograph and found that the insects launch angle was 55 degrees. What was the insect's initial velocity?
A snowboarder starts from rest and glides down a hill that is 100m high. Assuming no friction, what is her speed at the bottom of the hill
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