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A heavy-duty stapling gun uses a 0.168 kg metal rod that rams against the staple to eject it. The rod is attached and pushed by a stiff spring called a "ram spring" (k = 35934 N/m). The mass of this spring may be ignored. Squeezing the handle of the gun first compresses. The ram spring is compressed by 3.10 10-2 m from its unstrained length and then releases from rest. Assuming that the ram spring is oriented vertically and is still compressed by 1.50 10-2 m when the downward-moving ram hits the staple, find the speed of the ram at the instant of contact.
A planet of mass 7.00 1025 kg is in a circular orbit of radius 6.00 1011 m around a star. What is the change in kinetic energy of the planet
Calculate the critical angles for the following materials when surrounded by air. Assume that ? = 589 nm
The pilot of an aircraft wishes to fly due west in a 49.8 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 192 km/h.
a pendulum with a pendulum length of 1.25 m undergoing SHM of mass 250g just released from an angel of 7 to the vertical. determine the period and frequency of the motion
A boy kicks a ball horizontally near the edge off a boardwalk, with an initial speed of 9.0 m/s. Determine the height of the boardwalk above the water
What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here.
A 62-kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. How fast is the astronaut moving after he throws the mallet
When the gas in the tank is at room temperature, then what volume of gas can be compressed into the tank? The gas is measured at standard atmospheric pressure
An electron experiences the greatest force as it travels 1.02*10^6 m/s in a magnetic field when it is moving horizontally. The force is upward and of magnitude 1.75*10^-12 N. What is the magnitude of the magnetic field?
W hat least energy an incident alpha particle must have to penetrate the gold nucleus. What is the direction of the carbon atom after the collision.
The Kinetic coeffficient of friction for a 12Kg mass on a table is 0.25. A string from the mass goes across a pulley and is attached to an 8.0kg mass hanging over the side of the table. find the magnitude of the acceleration of each mass
What is the energy range (in joules) of photons of wavelength 400nm to 760nm
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