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A ball rolls off horizontally from a table that is 1.25m with an speed of 2.31m/s. How far away is the ball from the base of the table when it hits the floor?
A snowboarder is pulled by a tow rope along a horizontal surface with a constant force of 60 N. How far must the boarder be pulled, starting from rest, so that her final kinetic energy is 500 J.
a sled of mass 1 kg has an initial speed of 1.00m/s across a horizontal surface. the force of friction between the sled and surface is 0.2N. What is the speed of the sled after it ha traveled a distance of 2.00m
the specific heat of aluminum is .215 calories per gram per degree celcius. calculate the amount of heath required to raise the temperature
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.8 × 10-11 s. How many wavelengths are there in one pulse
Write three methods of increasing the volume of a balloon
Two straight wires run parallel to each other, each carrying a current in the direction shown below. The two wires experience a force in which direction? B) What happens when one of the currents is turned off?
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come to rest in the tumor, What is the total charge of the protons that must be fired at the tumor to deposit the required energy
When a pendulum with a period of 2.00000 s is moved to a new location from one where the acceleration of gravity was 9.80 m/s2, By how much does the acceleration of gravity differ
An airplane is flying in a horizontal circle at a speed of 520 km/h. If the wings of the plane are tilted 34° to the horizontal, what is the radius of the circle (in m) in which the plane is flying
A stone is projected at a cliff of height h with initial velocity of 42 m/s directed 60 degrees above the horizon. The stone strikes the cliff at point A, 5.50 s after launching.
A mass m1 = 3.2 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.3 kg which hangs freely from the string, How much work is done by gravity on the two block system
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 91.6cm and diameter 3.00cm from a storage room to a machinist. Calculate the weight of the rod
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