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Lucy gets cut off from the Nasa space ship and is stranded "floating" 75.0 meter away. Lucy throws her 2.00 kilogram camera at 25.0 m/s in a direction opposite of the ship. If Lucy's total weight is 145 kilogram. Find how long does it take her to get back to the ship.
A supersonic jet flying at 145 m/s is accelerated uniformly atthe rate of 23.1 m/s2 for 20.0 s. How many times thespeed of sound is the planes final speed
A person pulls a toboggan for a distance of 37.8 m along the snow with a rope directed 26.7 ° above the snow. The tension in the rope is 99.2 N. How much work is done on the toboggan by the tension force
If a toaster is plugged into a source of alternating voltage with an rms value of 66.2 V, find the resistance of the toaster's heating element
A wedge of mass m = 25.0 kg is located on a plane that is inclined by an angle ? = 20.6° with respect to the horizontal. What is the acceleration of the wedge along the plane
A 4-kg rock is tied to the end of a string and twirled overhead, 1.7 m above the ground, in a 1.1-m radius, horizontal circle. How far away from its location when the string breaks will the rock hit the ground
A person 1.6 m tall stands 2.9 m from a reflecting globe in a garden. (a) If the diameter of the globe is 33 cm, where is the image of the person, relative to the surface of the globe?
using momentum newtons first law of motion and or newtons second law of motion explain how a rocket is launched deep
A 169 g cube of ice at0?C is dropped into 2.9 kg of water that wasoriginally at 79?C. What is the final temperature of the water after after the ice melts
A 0.58-kg mass is hanging from a spring with spring constant 20 N/m. Then the mass is displaced from the equilibrium by 2.9 cm and let go. estimate the resulting angular frequency of the oscillation
Two square metal plates are placedparallel to each other, separated by a distance d= 1.34 cm. The plates have sides of length L = 0.790 m. One of the plates hascharge Q= + 3.42×10 -6 C, while the other plate hascharge -Q.
a cat walk 8.0m north, 5.0m east and then 6.0m south. What is the magnitude of the cat's displacement from the starting point
Two cars approaching each other collide and stick together after the collision. One car has a mass of 1820 kg and a speed of 30 km/h in the positive x direction. find the initial velocity of the second car
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