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1) Consider a spring handing vertically from a ceiling, attached to a mass m of 2 kg. The spring constant, k, is 30 N/m. The spring is compressed 0.8m and then released. How far does the spring travel downwards before it reverses direction? (hint: consider both gravitational and elastic potential energies)
Your friend's car is broken and you volunteer to push it to the nearest repair shop which is 2.0 km away. what is the normal force between the two bumpers
Three 1.2 kg masses are located at the vertices of an equilateral triangle 88 rm cm on a side, connected by rods of negligible mass. Find out the rotational inertia of this object.
A 1000 {rm kg} wrecking ball hangs from a 15 {rm m}-long cable. The ball is pulled back until cable makes an angle of 25.0^circle with the vertical. By how much has the gravitational potential energy of the ball changed .
A person with a near-point distance of 37 cm is able to get a usable magnification of 15 with a particular magnifying glass. What is the friend's near-point distance
Two students, Nora and Allison, are both the same age when Allison hops aboard a flying saucer and blasts off to achieve a cruising speed of 0.830c for 25.5 years round trip
An escaped convict runs 1.70 km due east of the prison. He then runs due north to a friend's house. what is the direction of his total displacement vector with respect to due east
Suppose 47.5 cm of wire is experiencing a magnetic force of 0.7 N. What is the angle in degrees between the wire and the 1.25 T field if it is carrying a 6.5 A current
What is tension in each rope
q1. a 60 kg circus performer jumps from a 6.2 m height onto a trampoline and stretches it downward 0.36 m. assume that
Fuel systems of modern cars are designed so thermal expansion of gasoline doesn't result in wasteful and polluting fuel spills. As an engineer, How large an expansion tank do you specify
A sphere of radius R = 0.325 m and uniform charge density -151 nC/m3 lies at the center of a spherical, find the magnitude of the electric field at the following radial distances from the center of the charge distribution
A baseball is thrown upwards with a speed of 15.0 m/s. How long does it take the baseball to reach its maximum height
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