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A mass is hung from a 25 centimeter string. The string is pulled aside a distance of 1.5 centimeter and released. Find what is the period of oscillation?
Two loudspeakers are placed 3-m apart. They emit 498 Hz sounds, in phase. A microphone is placed 3.2m distant from a point midway between the two speakers, where an intensity highest is recorded.
An average friction force of 4000 N impedes the car’s motion so that its speed at the bottom of the driveway is 3.8 m/s. Illustrate what is the length of the driveway?
When a 9.80 kg mass is placed on top of a vertical spring, the spring compresses 4.00 cm. What would the compression of the spring (in cm) be if the spring-mass system was placed
a. a thin rod of length 9.2 m and mass 16 kg is supported at a 31 degrees incline. one support is 2.4 m and the other
A proton moves eastward in the plane of Earth's 5x10^-5 T magnetic equator so that its distance from the ground is constant. What is the speed of the proton?
The uncertainty in a proton's position is 0.19nm. What is the kinetic energy of a proton whose momentum is equal to this uncertainty (delta p=p)
A centrifuge in a medical laboratoryrotates at an angular speed of 3400rev/min. Find the constant angular acceleration of the centrifuge
A spherical mirror is polished on both sides. When utilized as a convex mirror, the magnification is +1/4. What is the magnification when utilized as a concave mirror, the object remaining the similar distance from the mirror? Give your answer to thr..
While rearranging a dorm room, a student does 435 J of work in moving a desk 2.5 m. What was the magnitude of the applied horizontal force
The earth's atmosphere pushes down on the surface of the earth with a force of 14.7 lb for each square inch of the earth's surface. What is the total weight of the earth's atmosphere
A car is traveling along a straight road at a velocity of +31.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
An open-pit coal mine consumes 71hectares of land, down to a depth of 23m, each year. What volume of earth, in cubic kilometres, is separate in this time.
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