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A 1 650-kg car traveling east with a speed of 30.0 m/s collides at an intersection with a 2 000-kg van traveling north at speed of 20.0 m/s, Find the velocity of the wreckage after the collision, assuming that the vehicles undergo a perfectly inelastic collision (that is, they stick together).
If you are watching a football game from the end of a large stadium, what size will be the image of the football (L=0.3m) on your retina when the football is at the end of the field, 150m away from your seat? (CSG)
An electron moves with a velocity of (4*10^6 m/s, 90degrees) through a magnetic field of (0.50 T, 220degrees). What is the magnetic force acting on it?
Assume that a ball makes 315 rev/min while moving in a circle of radius 10 cm. What are the amplitude, frequency, and period of its shadow projected on a wall?
A roller coaster moves 200 ft horizontally and then rises 135 ft at an angle of 30.0° above the horizontal. find the roller coaster's displacement from its starting point at the end of this movement
Two blocks are arranged at the ends of a mass- less string as shown in the figure. The system starts from rest. When the 1.47 kg mass has fallen during 0.326 m, its downward speed is 1.25 m/s. The acceleration of gravity is 9.8 m/s2.
A flashlight bulb with a potential difference of 6.0 V across it has a resistance of 8.5 W. How much current is in the bulb filament
When customers arrive at gilley's ice cream shop, they take a number and wait to be called to purchase ice cream from one of the three counter serves. on summer days between 3-10pm, customers arrive at the rate 36 per hour - poisson distributed. it t..
The G string of a guitar which should be 397 Hz is playing flat at 380 Hz. What percentage change in the tension of the wire is necessary so as to tune the string to 392 Hz.
300g of water at 30 c if each gram gains 3.7 calories of heat, what i the final temperature, how much heat gained by the system
starting at rest two students stand on 20-kg sleds which point away from each other on ice and they pass a 10-kg
on average an electric water heater operates for 1.7 h each day. it has a power requirement of 4500 w and a current
a tank circuit in a radio transmitter is a series rcl circuit connected to an antenna. the antenna broadcasts radio
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