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A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 15m/s . The third piece has twice the mass as the other two.
What is the speed of the third piece?
A long, solid insulating cylinder of radius R = 1 mm has a uniform volume charge density and a total linear charge density of Lambda = 3:610^ -9 C/m.
A submarine dives 90.0 m at an angle of 8.0° below the horizontal. What are the horizontal and vertical components of submarine's displacement? (Imagine that upward and the direction of the submarine's horizontal motion is positive.)
The air inside a bicycle tire pump has 151 joules of work done on it as 70.7 joules of heat is conducted away from it
In a certain region of space, the electric field, E, is constant in direction (say horizontally in the +x-direction), but its magnitude decreases.
A heart defibrillator passes 11.0 A through a patient's torso for 5.00 ms in an attempt to restore normal beating, What was the path's resistance?
A man weighing 730 and a woman weighing 410 have the same momentum. What is the ratio of the man's kinetic energy to that of the woman.
A potter's wheel moves uniformly from rest to an angular speed of 0.18 rev/s in 28.0 s, Find its angular acceleration in radians per second per second
Suppose a car is traveling at 14 m/s, and the driver sees a traffic light turn red. After 0.50 s has elapsed (the reaction time) the driver applies the brakes and the car decelerates at 8.0 m/s2.
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays produced in this lamp.
Suppose the pressure of the gas equals to p=aV^2, where a is constant. Find the heat transfer to the gas during this process if this is a reversible change.
A major-league catcher gloves a 85 mi/h pitch and brings it to rest in 0.17m. If the force exerted by the catcher is 803 N, what is the mass of the ball.
An elevator and its load have a combined mass of 1600 kg. Find the tension in the supporting cable when the elevator, originally moving downward at 12 m/s, is brought to rest with constant acceleration in a distance of 28 m.
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