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An object at rest on a flat, horizontal surface explodes into two fragments, one 5 times heavier than the other. The heavier fragment slides 10m before stopping. Find how far does the lighter fragment slide? Suppose that both fragments have the similar coefficient of kinetic friction with the surface.
A baseball (mass 0.14 kg, radius 3.7 cm) is spinning with an angular velocity of 56 rad/s. What is its rotational kinetic energy
A helium ion (Q = +2e) whose mass is 6.6×10?27kg is accelerated by a voltage of 3700V, What is its speed? Express your answer to two significant figures and include the appropriate units
A stone is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of 19.0 m/s, Find the horizontal range of the stone
suppose that sound is emitted uniformly in all directions by a public address system. the intensity at a location 25 m
You charge an initially uncharged 79.9-mF capacitor through a 48.1 Ohm resistor by means of a 9.00-V, What is the charge after a long time (coloumbs)
Two balls , one of gold with a mass of 100 kg and one of wood with a mass if 1 kg, are suspended 1 meter apart. find attractive force the wooden ball acting on the gold ball
q1. a race car has the mass of 702 kg. it starts from rest and travels 45.0 m in 3.0 s. the car is uniformly
A 4.94-g bullet is shot through a 0.99-kg wood block suspended on a string 2.00 m long. The center of mass of the blockrises a distance of 0.50 cm. Find the speed of the bullet as it emerges from the block if its initial speed is 393 m/s.
An iron bar 50 cm long is raised to a copper bar 60 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
A rookie quarterback throws a football with an initial upward velocity component of 15.33 and a horizontal velocity component of 20.4. Overlook air resistance.
Spherical mirror has a focal length of 10 cm. find location and then describe image for an object distance of 25 cm. How fast does the image of the object move
Each of two small spheres is positively charged; the combined charge totals 60.0 nC. A.) What is the charge on each sphere if the spheres are repelled with a force of magnitude 0.270mN when placed 0.100m apart?
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