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Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time
a. Assuming friction and air resistance is negligible, who will reach the bottom first?
b. Who will have the greater momentum at the bottom?
The height of a door is measured by four people and their measured values are 217.0 cm, 217.9 cm, 217.3 cm, and 217.6 cm, What is the standard deviation for the four measurements
A dentist uses a mirror to examine a tooth. The tooth is 1.01 cm in front of the mirror, and the image is formed 10.9 cm behind the mirror. Determine the mirror's radius of curvature
Objects A and B are both positively charged. Both have a mass of 200g, How large is the force on A and What is the charge qA and qB
Two blocks of masses m1 = 1.90 kg and m2 = 5.18 kg are each released from rest at a height of h = 5.15 m on a frictionless track, find the maximum height to which m1 rises after the collision
As a spacecraft approaches a planet, the rocket engines on it are fired (turned on) to slow it down so it will go into orbit around the planet. how long (in minutes) must the engines be fired
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom
A 32.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 21.00 m. Calculate the mechanical energy lost due to friction
An ore car of mass 4 000kg rolls downhill on tracks from a mine. At the end of the tracks, 10 m lower in elevation, is a spring with k = 400 000 N/m. How much is spring compressed in stopping the ore car? Ignore friction.
The front 1.20 m of a 1600 kg car is designed as a "crumple zone " that collapses to absorb the shock of a collision. what is the magnitude of the average force on the car
A microscope is used to examine a sample of bacteria that are spread on glass. determine the shortest distance between two bacteria
At one instant a bicyclist is 25m due east of a park's flagpole, going due south with a speed of 8 m/s. Then, 11 s later, the cyclist is 65m due north of flagpole, going due east with a speed of 10 m/s.
Tendons are strong elastic fibers that attach muscles to bones. To a reasonable approximation, they obey Hooke's law. Find the force constant of this tendon in N/m
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