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Imagine a truck with a mass of 23 metric tons (t) (1 t=1,000 kg) barrelling down a highway at a speed of 55 mi/h. What is the truck's momentum in kilograms? What is its kinetic energy in kilograms?
A picture is supported by two cords each making an angle of 53degree with the horizontal. If the tension in each cord is 10N what is the weight of the picture
The "power cube" transformer for a portable CD player has an output of 4.5 V and 550 mA (both rms) when plugged into a 120 V/60 Hz outlet. What is the peak current in the primary coil
An unstable particle is at rest and suddenly breaks up into two fragments. No external forces act on the particle or its fragments. What is the velocity of the more massive fragment
What was the bullet's speed as it left the barrel. A 1kg block rests against one end of a horizontal spring which is compressed by 10 $cm$.
A 34cm diameter wheel accelerates uniformly about its center from 130rpm to 370rpm in 4.8s. Determine the radial component of the linear acceleration of a point on the edge of the wheel
illustrate what is the magnitude of the acceleration of the box and hanging mass.
If Wave B's amplitude is instead -13.4 mm, what is the amplitude of the wave pulse formed while they are interfering
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. What distance did the dog run
a guitar string is under a tension of t 198n. the string has a mass of m 99g and length l. when the string is
Professional baseball pitchers can deliver a pitch which can reach the blazing speed of 100 mph (miles per hour). how much kinetic energy does the ball have
Suppose that the sound level of a conversation is initially at an angry 74 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 516 Hz, determine the (a) initial and (b) final sound intensities (in ?W/m2) and the (c) ..
A bottle of wine known as a squinch contains a volume of 1.9 liters. A bottle known as a serroboam contains 8.3 U.S. gallons. How many squinches are there in one serroboam
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