In a police ballistics test, 2.00-g bullet traveling at 700 m/s suddenly hits and becomes embedded in a stationary 5.00-kg wood block. What is the speed of the block immediately after the bullet has stopped moving relative to the block?
What will be an ideal response?
0.280 m/s
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Which one of the following lists gives the correct order of the electromagnetic spectrum from low to high frequencies?
A) radio waves, infrared, microwaves, ultraviolet, visible, x-rays, gamma rays B) radio waves, ultraviolet, x-rays, microwaves, infrared, visible, gamma rays C) radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays D) radio waves, microwaves, visible, x-rays, infrared, ultraviolet, gamma rays E) radio waves, infrared, x-rays, microwaves, ultraviolet, visible, gamma rays
A photocell is a device that operates using the photoelectric effect. What metal should be used if it is desired that the photocell operate using visible light?
A. manganese 
B. gadolinium 
C. cesium 
D. beryllium 
RMS and Peak Quantities: An alternating current is supplied to an electronic component with a rating that the voltage across it can never, even for an instant, exceed 16 V. What is the highest rms voltage that can be supplied to this component while staying below the voltage limit?
A. 8
V
B. 16
V
C. 256 V
D. 8 V
If the sum of both the external torques and the external forces exerted on an object is zero, then the object must be at rest
A) True B) False