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As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 117 bpm (beats per minute). This high rate serves as objective evidence of your excitement. However, an observer on the Moon, an expert in pulse rate telemetry, measures your pulse rate as slower. In fact she detects only 0.501 times the rate you count and claims that you must be pretty calm in spite of everything that is going on. How fast are you moving with respect to the Moon?
At the very bottom of the circle, a too sharp knife is suddenly inserted to cut the string directly below the point of support. How far to the right of where the string was cut does the ball hit the floor.
The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f?2 versus M/L, calculate the mass m of the ball
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, and hits the ground one second after that. how tall is the building? how fast did the ball strike the ground?
A string is58.0cm long and has a mass of 3.00 g. A wave travels at5.25m/s along this string. A second string has the same length, butone-fourththe mass of the first. If the two strings are under the same tension, what is the speed of a wave along ..
A coil has an induced voltage of 120 volt when the rate of flux change is 0.4 Wb/s. How many turns are in the coil
A ray of light consisting of two colors (red and blue) is incident normally on the face of a small equilateral prism. What is the distance between the two colors on the screen
What is total mechanical energy of the motion
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
How to compute the average force
You wish to observe the progress of your vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that sound waves do not travel in a vacuum
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin (2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 35.0 N/m.
An electron acquires 5.95×10?16J of kinetic energy when it is accelerated by an electric field from plate A to plate B
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