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A luminous object is 3.60m from a wall. You are to use a concave mirror to project an image of the object on the wall, with the image 2.21 the size of the object.
Part A How far should the mirror be from the wall?
?=m
Part B What should its radius of curvature be?
A hollow spherical shell has mass 7.95kg and radius 0.225m, What is the kinetic energy of the shell after it has turned through 6.75rev
An aircraft weighing 819 N is accelerated at 11.7 m/s2 for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
The energy of a simple harmonic oscillator could be doubled by increasing the amplitude by a factor of approximately
What potential difference is required to reduce the initial speed of the proton by a factor of 2, What potential difference is required to bring the proton to rest
Two point charges of equal magnitude are 7.3cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 40N/C . Find the magnitude of the charges.
suppose that the springs have somehow not yet compressed to their maximum amount. How much are the springs compressed.
A 72 kg man is riding on a 40 kg cart traveling at a speed of 2.5 m/s. What is the resulting change in the cart's speed, including sign
An oscillating block-spring system has a mechanical energy of 1.00 J, an amplitude of 9.9 cm, and a maximum speed of 1.13 m/s. Find the spring constant
W hat is the downward acceleration of the blue spool
A gauge-12 wire has diameter centimeters and length meters. while the voltage volts is applied to the ends of the wire, the current is amperes. The concentration of free electrons in the wire is per cubic meter.
What is an average speed
A radar receiver can be tuned to detect signals in the range of [1750 µm to 2750 µm]. What is the frequency difference between the minimum and maximum wavelength
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