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A car accelerates from rest at a constant rate of 2m/s2 for 5s. At the end of this time the speed of the car is 10 m/s. How far does the car travel in this time?
A point source emits 86.9 W of sound isotropically. A small microphone intercepts the sound in an area of 0.231 cm2, calculate the power intercepted by the microphone
An alpha particle with a kinetic energy of 6.00MeV makes a head-on collision with a gold nucleus at rest. What is the distance of closest approach of the two particles
A 72 kg man is riding on a 40 kg cart traveling at a speed of 2.5 m/s. What is the resulting change in the cart's speed, including sign
Two identical 1.40 kg masses are pressed against opposite ends of a spring of force constant 1.70 N/cm, Find the maximum speed of each mass when it has moved free of the spring on a smooth
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
A model rocket blasts off and moves upward with an acceleration of 15m/s^2 until it reaches a height of 35m, what is the total duration of the rocket's flight
Compute the magnitude and direction of the total gravitational force exerted on one sphere by the other three.
If a violin string is tuned to a certain note, by how many times must the tension in the string be increased if it is to emit a note of 4 times the original frequency
q1. a person eats a dessert that contains 260 calories one. the skin temperature of this individual is 36 degree
Illustrate what is the magnitude of the change in momentum of the ball while in contact with the bat if the ball leaves with a velocity of (a) 18 m/s, vertically downward, and (b) 18 m/s, horizontally back toward the pitcher?
A dog (mass 11.5 kg) sits on a sled (mass 5.1 kg) that is being pushed with a force of 29 N on a flat snowy surface. what is the coefficient of kinetic friction for the sled sliding on the snow
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop at an amusement park. What is the speed of the rider at the top of the loop
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