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A 950kg car is at the top of a 40m -long, 2.5 degree incline. Its parking brake fails and it starts rolling down the hill. Halfway down, it strikes and sticks to a 1230kg parked car.
What the first car's speed would have been at the bottom had it not struck the second car?
A circuit that consists of a capacitor in series with a 50 ohm resistor draws 4 A from a 250-V(rms), 200 Hz power source. how much power would the circuit dissipate
A 48 kg skier starts from rest at a height of H = 27 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. avoid the effects of air resistance and assume the ramp is frictionles..
Two 1000 kg cars drive east; the first moving at 25 m/s, the second at 15 m/s. What is the magnitude of the total momentum of the system
How much work did movers do (horizontally) pushing a 140{rm kg} crate 10.60 m across a rough floor without acceleration, if the effective coefficient of friction was 0.700.
Two children fighting over a toy pull on the toy in different directions. One child pulls to the north with a force of and the other child pulls to the east with a force of What is the magnitude of net force on the toy.
Suppose you carry a bag of groceries weighing 151 N from your car to your kitchen, a distance of 38 m, without raising or lowering the bag. What is the work done by the force you exert on the bag
A light beam is incident on a piece of zircon (n = 1.923) at the Brewster's angle. Find the value of Brewster's angle
A device used in radiation therapy for cancer contains 6.20×10-1 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
The label on a 12.0-V truck battery states that it is rated at 150.0 A·h (ampere-hours). Treat the battery as ideal. How much electric energy can the battery supply
Capacitors C1 = 5.65 µF and C2 = 2.75 µF are charged as a parallel combination across a 250 V battery. Calculate the resulting charge on each capacitor
An airplane with a speed of 87.7 m/s is climbing upward at an angle of 35.1 ° with respect to the horizontal. When the plane's altitude is 533 m, the pilot releases a package.
A projectile is fired at v0 = 407.0 m/s at an angle of ? = 72.0o with respect to the horizontal. Assume that air friction will shorten the range by 34.1%. How far will the projectile travel in the horizontal direction, R?
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