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1) Two people, George who has a mass of 85.0 kg and Victoria who has a mass of 62.0 kg, are on a frozen circular pond. They stand at the very centre and push off of each other. The distance from one side of the pond to the other is 83.0 m and it takes George 11.0 s to reach the edge of the pond. How long does it take Victoria to reach the edge of the pond?
2) A 915 kg red car is travelling to the east at a speed of 42.9 m/s and a 1.99×103 kg blue car is travelling 29.0° south of west at a speed of 17.7 m/s. They collide and then continue to move while attached to each other. What is the speed of the two cars together?
An object is 26 cm in front of a diverging lens with a focal length of 13 cm . Use ray tracing to determine the location of the image.
Astronomers have discovered a planetary system orbiting the star Upsilon Andromedae, which is at a distance 4.2 1017 m from the earth. what is the minimum necessary aperture diameter that a telescope must have
A satellite of mass320kg is in a circular orbit around the Earth at an altitude equal to the Earth's mean radius. Calculate the gravitational force acting on it
A 5 kg ball is thrown upward with an initial speed of 30 meters per second. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path
Determine what is the magnitude of the average force on the wall if the duration of the collision is 0.19 second
Copper wire 0.4 mm in diameter is tightly wounded into a long solenoid and a 3.6A current passes through it. What is the magnetic field in the solenoid
A skier of mass 61 kg ispulled up a slope by a motor-driven cable. What power must a motor have to perform this task
On average, an electric water heater operates for 2.3 h each day. what is the cost of operating the heater
The ball P is launched at an angle beta= 30 degree relative to the inclined plane at a speed of v0 = 20 feet per second. Determine the distance between the launch point O and the point A at which the ball touches down
A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels along an exceedingly smooth test track, and you feel no ..
A 350kg piano slides 3.8m down a 29 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Calculate the net work done on the piano
Shareen finds that when she drives her motor boat upstream she can travel with a speed of only 8 m/s, Find the current of the river on which Shareen is traveling
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