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A marble (radius 1.5 cm and mass 5.0 g) rolls without slipping down a ramp of vertical height 26 cm. What is the speed of the marble when it reaches the bottom of the ramp?
A projectile is fired with an initial speed of 68.8 at an angle of 37.8 above the horizontal on a long flat firing range. Find out the maximum height reached by the projectile.
At one instant a bicyclist is 50 m due east of a park's flagpole, going due south with a speed of 9 m/s. Then, 24 s later, the cyclist is 45 m due north of the flagpole, going due east with a speed of 20 m/s. For the cyclist in this 24 s interval,..
wheel A of radius rA = 11 cm is coupled by belt B to wheel C of radius rC = 20 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s2. Find out the time needed for wheel C to reach an angular speed of 100 rev/min,..
A playground carousel is rotating counterclockwise about its center on frictionless bearings. Find the final angular speed of the carousel
The density of air at standard temperature and pressure (STP) is 1.20 kg/m^3 how much mass could this balloon carry
The train comes to a stop 6.0 m from the point at which it was released. What is the magnitude of train's acceleration after its wheel begins to stick.
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. What is the total charge of the protons that must be fired at the tumor
A 85.6-kg wrecking ball hangs from a uniform heavy-duty chain having a mass of 27.0kg, Find the maximum tension in the chain
A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = -9.8 meters/second2. A. 11.2 seconds B. 12.1 sec..
The mass of a robot is 5220 kg. This robot weighs 2650 N more on planet A than it does on planet B. Both planets have the same radius of 2.26 × 107 m
Fill a glass with water. Look down through the water, and then through the glass to your hand on the outside. Can you see it? Tip the glass towards you and watch your hand disappear. Why? Do you know what physical phenomena this observation is rel..
An amusement ride consists of a car moving in a vertical circle on the end of a rigid boom. The radius of the circle is 32 meters. What is the force of the boom on the car
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