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When four people with a combined mass of 319 kg sit down in acar, they find that the car drops 2.5 cm lower on its springs. Thenthey get out of the car and bounce it up and down. What is the frequency of the car's vibration if its empty mass is 1810kg?
A box rests on a frozen pond, which serves as a frictionless horizontal surface. what is the mass of the box
A water pipe having a 2.4 cm inside diameter carries water into the basement of a house at a speed of 0.95 m/s and a pressure of 174 kPa. What is the water pressure at the second floor
An oscillator consists of a block attached to a spring (k = 450.0 N/m). At some time t the position (measured from the system's equilibrium location),velocity, What is the amplitude of oscillation for the motion
A particle leaves the origin with an initial velocity v(bold)=2.4m/s xhat, How far does the particle move in the x direction before it turns around
The kinetic friction of one metal object sliding along anothermetal surface depends lease upon:
How large an inductance, in henrys (H), should be connected in series with a 120 V, 60 W lightbulb if it is to operate normally when the combination is connected across a 240 V, 60 Hz line? (First determine the inductive reactance required. You may n..
Unpolarized light is incident on a linearly polarizing filter oriented 30 degrees with respect to the horizontal. find the final intensity that emerges from the last polarizing filter
A 2.5 ball and a 3.5 ball, each moving at 0.90 , undergo a head-on collision. The lighter ball rebounds opposite its initial direction, with speed 0.90. a) Find the post-collision velocity of the heavier ball.
A hoop and a cylinder of the same mass and outer radius are rolled up an incline plane with the same speed. Which goes farther up the incline plane? Explain
Three moles of an ideal monatomic gas expands at a constant pressure of 2.10 ; the volume of the gas changes from 3.30×10?2 to 4.60×10?2. Calculate the amount of work the gas does in expanding
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 9.10 km below the surface. Find the fractional volume change in the spoon due to compression forces
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