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1.) A 150 g block is placed on a spring of inclination 30°. The spring is of stiffness k=120 N/m, and is compressed 50 cm by the block. If it launched at ground level at the inclination of 30°, how high does the block go in the air projected by the spring?
2.) On the set of Star Wars, Skywalker (mass 64.5 kg) needs to be shot 3.0 m straight up in the air by a large spring. If the stiffness of the spring is 10000 N/m, how far must the spring be compressed to accomplish the stunt?
A high tide is occurring at Charleston, South Carolina (33°N, 84°W).
Let's consider an elastic collision between two marbles, where the marbles are confined to one dimension. Suppose marble 1 with a mass of 40 g is shot with a speed of 5 m/s into marble 2 with a mass of 20 g. What will be the speed of marble 2 afte..
Suppose that a standing wave on the flagpole gives rise to a sound wave of the same frequency. A person would be able to hear the sound produced by the above standing wave, What is the lowest flagpole harmonic the mouse can hear
A 2.0 cm diameter, 4.0 m long plastic rod has 12 micro C excess charge distributed evenly throughout its volume. What is the electric field 4.0 cm from the center of the rod. What force will a 1 micro C charge experience 4.0 cm from the center of the..
An object is located 13.5 cm in front of a convex mirror, the image being 7.45 cm behind the mirror. A second object, twice as tall as the first one, is placed in front of the mirror, but at a different location.
A convex lens is held over a piece of paper outdoors on asunny day. When the paper is held 26 {\rm cm} below the lens, the sunlight is focused on the paper and the paperignites. What is the focal length of the lens?
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 53.0 centimeter. Find the value of the acceleration of gravity on this planet
A certain string just breaks when it is under400N of tension. A boy uses this string to whirl a 10-kgstone in a horizontal circle of radius 10m. Atapproximately what speed will the string break
Find the resonance frequency of the ear canal, Treat it as a half-open pipe of diameter 8 mm and length 26.7 mm
A 0.39 T magnetic field is perpendicular to a circular loop of wire with 55 turns and a radius of 13 cm. what is the magnitude of the induced emf
A stunt man whose mass is 70 kg swings from the end of a 4.40-m long rope along the arc of a vertical circle. Assuming that he starts from rest as rope is horizontal, find out the tensions in the rope that are required to make him follow his circu..
A charge of 160 µC is at the center of a cube of edge 85.0 cm. Noother charges are nearby. Find the total flux through each face of the cube. Find the flux through the whole surface of the cube.
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