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A 34 g bullet travelling at 120m/s embeds itself in awooden block on a smooth surface. The block then slides toward aspring and collides with it. The block compresses the spring (k =99N/m) a maximum of 1.2cm. Calculate the mass of the block of wood.
A Galilean design telescope is to be made with an objective of focal length 450 mm with an angular magnification of 18. What should the focal length of the eyepiece be
Treat a cell in a human as a sphere of radius 1.0 µm. What's the volume of the cell
Two loudspeakers are placed above and below each other and driven by the same source at a frequency of 4.50x10^2 Hz. An observer is in front of the speakers (to the right) at point O.
The outer surface of a skier's clothes of emissivity 0.700 is at a temperature of 7.40° C. Find the rate of radiation if the skier has a surface area of 1.50 m2
question1a 27 kg chair initially at rest on a horizontal floor requires a 377 n horizontal force to set it in motion.
two forces are applied to a stump by two tractors. one is a 150 n force to the east. the other is 100 n in a direction
An object slides down a frictionless inclined plane. At the bottom, it has a speed of 9.80 m/s. What is the vertical height of the plane
While crossing campus you get your directions mixed up. You start traveling 278 m East; you then travel 101 m traveling 37 North of East, What is your final distance from where you started
You have a 240- resistor and a 0.420-H inductor. Suppose you take the resistor and inductor and make a series circuit with a voltage source that has a voltage amplitude of 33.0 V, What is the voltage amplitude across the resistor
a circular-motion addict of mass 85 kg rides a ferris wheel around in a vertical circle of radius 10 m at a constant
A train moving with constant velocity travels 180north in 12 and an undetermined distance to the west. The speed of the train is 36 M/S^2. Find the direction of the train's motion relative to north
a what supports a white dwarf from further collapse? b why cant a white dwarf have mass greater than 1.4m? c what
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