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A playground ride consits of a disk of mass M = 47kg and radius R = 1.6 m mounted on a low friction axle. A child of mass m = 18kg runs at speed v =2.7 m/s on a tangential to the disk and jumps onto the outer edge of the disk. (a) What was the speed of the child just after the collision ? (b)what was the speed of the center of mass of the disk just after the collision ? (c) what was the magnitude of the linear momentum of the disk just after the collision?
Determine the orbital speed of a satellite that circles the Earth with a period of 2.50 104 s. The mass of the Earth is 5.97 1024 k
A tetherball leans against the smooth, frictionless post to which it is attached. What is the force the pole exerts on the ball
The bullet passes through the block and emerges with its speed reduced to 100 m/s. The block slides a distance of 0.10 m along the surface from its initial position. Illustrate what is the coefficient of kinetic friction between block and surface?
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 290 N/m. obtain the possible algebraic signs
The mean distance between the earth and the sun is 1.5x1011m. The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W/m2. Assuming that the sun emits radiation uniformly in all directions, determine the total ..
A 500 kg cannon fires a 4.0 kg projectile with a velocity of 500 m/s relative to the ground. What is the recoil speed of the cannon
Two speakers face each other and radiate coherently and in phase. How many loud maximum intensity positions are there between the speakers
A model rocket blasts off and moves upward with an acceleration of 13 m/s^2 until it reaches a height of 27 m, What is the speed of the rocket just before it hits the ground
Compute the position, velocity vector and the distance attained by athlete in a long jump event.
A 0.360 kg pendulum bob passes through the lowest part of its path at a speed of 2.86 m/s, When the pendulum reaches its highest point, what angle does the cable make with the vertical
An object is placed 18.0 cm in front of a converging lens with a focal length of 6.00 cm. determine the image location and its characteristics
A 195-g block is pressed against a spring of force constant 1.15 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal. Using energy considerations, determine how far up th..
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