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When a problem ask how to identific proper significant figures what does it mean. My problem says What is the result of (3.83 m x 1.23 m ) /0.79 m with the proper number of significant figures?
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. If radar waves have a wavelength of 3.0 cm.
A package is dropped from a passing plane (moving in the horizantal direction) and produces a projectile motion as it is falling to the ground. If it takes the package only 32.12 seconds until it hits the ground, how far above the ground was the plan..
A U tube is filled with water, and the two arms are capped. The tube is cylindrical, and the right arm has twice the radius of the left arm. The caps have negligible mass, are watertight, and can freely slide up and down tube.
A half-open pipe is constructed to produce a fundamental frequency of 274 Hz when the air temperature is 20 °C. It is used in an overheated building when the temperature is 37 °C. Neglecting thermal expansion in the pipe, what frequency will be heard..
Describe the interference of two wave pulses with different amplitudes if they are a) in phase and b) completely out of phase
A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. What vertical height does the puck reach above its starting point
How much work is completed by the Moon's gravitational field as a 915kg meteor comes in from outer space and impacts on the Moon's surface.
The student throws a ball into the air along a path that he judges to make an initial angle of 59° with the horizontal and to be in line with the track. The student's professor, who is standing on the ground nearby, observes ball to rise verticall..
Use the binomial expansion to find an approximate expression
q1. two charges are placed on the x axis. one of the charges q1 6.95c is at x1 3.00 cm and the other q2 -27.3c is at
Analyse the instantaneous velocity of the car
A high-speed photograph of a club hitting a golf ball, find the average force exerted on the ball by the club
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