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Two divers jump from a 2.90 m platform. One jumps upward at 1.80 m/s, and the second steps off the platform as the first passes it on the waydown.
a) What are their speeds as they hit the water?b) Which hits the water first and by how much?
A light ray is incident from air onto the surface of a very quiet lake. what is the index of refraction of the water
A coil with a radius of 2cm is wrapped with 400 turns of wire uniformly along its 20cm length. what EMF will be produced in the coil
a 69 kg short track ice skater is racing at a speed of 11 m/s when he falls down and slides across the ice into a padded wall that brings him to rest. how much work is done by the all while stopping the ice skater
A point charge +6.7 uC is placed at the origin, and a second charge -3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane
In the figure below, water flows through a horizontal pipe, and then out into the atmosphere at a speed of v1 = 13 m/s. What is the gauge pressure in the left section of the pipe
In the "before" part of the figure below, car A (mass 1000 kg) is stopped at a traffic light when it is rear-ended by car B (mass 1600 kg). Both cars then slide with locked wheels until the frictional force from the slick road (with a low µk of 0...
q1. an artillery shell is fired with an initial velocity of 370 ms at 76deg above the horizontal. to clear an avalanche
A person 25 centimeters in front of a concave makeup mirror sees an upright image magnified by a factor of two. Draw a sketch to locate the image of the person
A small helium-neon laser emits red visible light with a power of 3.2 mW in a beam with a diameter of 2.5 mm. what is the total energy contained in a 1.00 m length of the beam
A 35-kg child is holding for dear life on a playground merry-go-round that has a radius of 2.5m and is turning at a rate of one turn every 5 seconds. What's is the child's acceleration relative to the ground
A 72.3 kg man carrying a 5.23 kg box gets on an elevator. As the elevator accelerates upwards at 0.224 m/s^2, he feels the box is heavier, During this time, what is the weight on the floor from his feet
A motorboat traveling on a straight course slows uniformly from 60 km/h to 40 km/h in a distance of 50 m. What is the boat's acceleration
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