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On an exo-planet, a 70-kg astronaut steps on a scale and finds that the scale reads 246 N. A survival pack is dropped a distance 85 m to the ground.
(a) How fast will the survival pack be moving just before it hits the ground?
(b) Take the ratio of this speed with the speed of the survival pack if it was dropped on earth.
An object of mass 6.8 Kg is attached to a spring of force constant 1830 N/m. find the maximum velocity the object has during its motion
In the Compton Effect, momentum conservation applies so total momentum of the photon and the electron is the same before and after the scattering occurs.
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 430 kW-h/y, On average, how much energy does the freezer use in a single day
-Chlorine-35 has a mass of 34.97 amu, and makes up 75.53 % of all chlorine atoms, and Chlorine-37 has a mass of 36.95 amu, Determine the atomic mass of the chlorine atom
A torsion pendulum is made from a disk of mass m = 7.1 kg and radius R = 0.71 m. What is the angular frequency of oscillation of this torsion pendulum
When both cars increase their speed by 7.0m/s , they then have the same kinetic energy. What were the original speeds of the two cars
Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed limit
When the eye looks at a star (a point of light), diffraction at the pupil spreads the image of the start on the retina into a small disk, What is the linear size of the image of the start on the retina
At the beginning of the interval the astronaut is moving toward the right along the x-axis at 15.40, and at the end of interval she is moving toward the right at 5.40.
A pipe open at one end has a fundamental frequency of 256 Hz. A second pipe,identical to first pipe, is shortened by cutting off a portion of the open end. When both pipes vibrate at their fundamental frequencies, a beat frequency of 12 Hz is heard..
At the same time, the stationary trumpeter played the same note. Ballot heard 3.0 beats per second. How fast was the train moving toward him.
A copper block is suspended from a wire, as in part 1 of the drawing. A container of mercury is then raised up around the block, Find the ratio of the fundamental frequency of the wire in part 2 to the fundamental frequency in part 1
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