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A 5 kg rock is suspended by a mass less string from one end of a 6 m measuring stick. What is the mass of the measuring stick if it is balanced by a support force at the 1 m mark?Answer in units of kg.
A mass m = 4.4 kilogram is attached to a vertical spring with k = 220N/m and is set into motion. find what is the maximum value of the velocity
Hooke's Law states that the force needed to stretch a spring is proportional to the amount the spring is stretched. If 10.0 N of force stretches a spring 4.00cm
A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. What is the maximum angle away from the lowest position the pendulum will reach
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is ?s = 0.571, what is the sled\'s acceleration
A Cessna aircraft has a lift-off speed of 120 km/h. How long does it take the aircraft to become airborne
A circular coil of 144 turns has a radius of 1.54 cm. Find the maximum magnitude of the torque that the coil, carrying this current, can experience in a uniform 37.0 mT magnetic field
The nucleus of the hydrogen atom has a radius of about 1.1 x 10-15 m. find the percentage of the volume of the atom that is occupied by the nucleus
Astronauts are playing baseball on the International Space Station. One astronaut with a mass of 50.0 kg, initially at rest, hits a baseball with a bat. What is the recoil velocity of the astronaut
A wooden cube of side .3 m has a density of 700kg/m3 and floats partiall submerged in the seawater (density =1025 kg/m3) What distance from the bottom of the cube to the surface of the water? How much extra mass must be added so that the top of the c..
Two candles are lit and separated by 0.10 m. If the diameter of the pupil of an observer's eye is 3.5 mm, What is the maximum distance that the candles can be away from the observer and be seen as two light sources
A cylinder which is in a horizontal position contains an unknown noble gas at 5.26 Ã- 104 Pa and is sealed with a massless piston. calculate the change in internal energy of the system
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure in pascals
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