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You know that a rubber band is stretched or elongated by applied force F. The applied force F is a function of elongated amount x. This function can be described as F(x) =29*x. Now, if the rubber band is stretched 17 cm and released, what will be the velocity of the band? Assume that rubber band mass is 9 gram. Hint-use conservation of energy concept.
A bullet is fired from the ground at an angle of 60o with initial speed vo=30 ft/s. Evaluate how far does the bullet travel
A car moving at a constant speed of 30m/s suddenly stalls at the bottom of a hill. Determine the maximum distance traveled by the car up the hill after stalling
A converging lens with a focal length of 7 centimeter forms an image of a 3.80 millimeter tall real object that is to the left of the lens. Find where are the object and image located
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 13.1 kg and 3.76 10-3 m3. Find the mass of the gold in the rock
A small object of mass 3.78 gram and charge -17.2 µC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. Find the magnitude and direction of the electric field
Standing on the surface of a small spherical moon whose radius is 6.85·104 m, What maximum height above the surface of the moon will the rock reach
A college student is working on her physics homework in her dorm room. Her room contains a total of 6x 10^26 gas molecules. As she works, her body is converting chemical energy into thermal energy at a rate of 125 W.
A(n) 331 g object is attached to a spring and executes simple harmonic motion with a period of 0.294 s. The total energy of the system is 1.7J. Find the force constant of the spring. (N/m) Find the amplitude of the motion (in cm)
A 1 550-kg automobile has a wheel base (the distance between the axles) of 2.80 m. Find the force exerted by the ground on each wheel
A geiger-muller tube is a type of gas-filled radiation detector. It can detect particles like X-rays, alpha particles and beta rays (electrons). what is the density of the gas in this geiger tube
A ray of light is incident on the surface of a block of clear ice at an angle of 33.0° with the normal. Find the angle between the reflected and refracted light
Two parallel plates are 6.0 cm apart. The bottom plate is charged positively and the top plate is charged negatively, What is the time required for an electron
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