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The shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behaviour of the springs attached to the axles. All of the identical springs attached to the front axle support 321 kg. A person pushes down on the middle of the front end of the car and notices that it vibrates through five cycles in 3.2 s. find the spring constant of either spring.
An outside loudspeaker (considered a small source) emits soundwaves with a power output of 75 W. Find the intensity level in decibels at that distance.
What is the mass of the metastable particle after the collision, in units of proton mass and determine in advance the trajectory of any individual particle?
The spaceship Enterprise 1 is moving directly away from earth at a velocity that an earth-based observer measures to be +0.80c. A sister ship, What is the velocity of Enterprise 2
In a women's 100-m race, accelerating uniformly, Laura takes 1.87 s and Healan 3.12 s to attain their maximum speeds, find the maximum distance by which Healan is behind Laura
A bowling ball (m = 7.2 kg, r = 0.11 m) and a billiard ball (m =0.38 kg, r = 0.028 m) may each be treated as uniform spheres. Whatis the magnitude of the maximum gravitational force that each canexert on the other?
An eyepiece of 3.0- cm focal length and an objective of 0.29-cm focal length are used in a standard microscope. What power should be marked on the eyepeice?
The middle C string on a piano is under a tension of 644 N. Find the linear density of the string
A 102-N grocery cart is pushed 13.0 m by a shopper who exerts a steady horizontal force.
A car traveling 90km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance it travels during the third second.
A small ball with a mass of 0.06 kg moves along a circular orbit with a radius of 0.5 m at a speed of 3.0 m/s. What is the angular momentum of the ball
a falling flower pot passes a 1.5 m tall window of an apartment building in a time of .16 s. from what height above the top of the window was the pot dropped
A uniform electric field exists in a region between two oppositely charged plates. What is the speed of the electron as it strikes the second plate
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