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The roller-coaster car is dragged up at the highest point where it is released passing the highest point with speed of 1.7 m/s. If the average force of friction is equal to one-fifth of its weight, with what speed will the car reach the lowest point, which is 35.0m below the highest point? The distance traveled is 45.0m.
A loudspeaker of mass 19.0 kg is suspended a distance of h = 2.00m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l= 3.50m. Illustrate what is the tension T in each of the cables?
a beam of light enters a piece of zircon at an angle of incidence of 30 degrees. what is the angle of refraction in the zircon
a uniform electric field of magnitude 256 vm is directed in the negative y direction. a 12.9 uc charge moves from the
A projectile is fired with an initial speed of 37.8m/s at an angle of 44.7 degrees above the horizontal on a long flat firing range. Determine the total time in the air
You decide to travel by car for your holiday visits this year. You leave early in the morning to avoid congestion on the roads. How far did you travel on this trip
One of the mooring lines of USS BOXER (LHD-4) is under a tension of 4500 N and is set into resonance by the vibration of a CHT pump. What is the period of the 2nd harmonic
you drive a car 1500 to the east then 2400 to the north. the trip took 2.5 minutes.what was the direction of your
A woman with mass 50.5kg is standing on the rim of a large disk that is rotating at 0.505rev/s about an axis perpendicular to it through its center. Calculate the magnitude of the total angular momentum of the woman-plus-disk system
on a hot day a house is kept cool by an air conditioner. The outside temperature is 32 degrees celsius and the inside temperature is 21 degree celsius. what is the mechanical power that it requires to hold the inside temperature constant
A 6,500 kg bus traveling at 25 m/s collides head on with a 1,300 kg car traveling at 40 m/s. Find the resulting velocity of the vehicles
What is the smallest radius of a circle at which a bicyclist can travel if his speed is 9 m/s and the coefficient of static friction between the tires and the road is 0.32, what is the largest angle of inclination
A dentist's mirror is placed 2.4 cm from a tooth. The enlarged image is located 6.4 cm behind the mirror. How is the image oriented relative to the object
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