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A stunt car driver negotiates the frictionless track shown in such a way that the car is barely on the track at the top of the loop. The radius of the track is 9.9 m and the mass of the car is 1800 kg. Find the force of the car on the track when the car is at point . You can treat the car as a point mass.
Two parallel conducting plates with the small gap of 1.0 cm are charged oppositely each other. What is the acceleration of the electron
Helium gas with a volume of 2.60L under a pressure of 1.70atm and at a temperature of 43.0 oC is warmed until both the pressure and volume of the gas are doubled. How many grams of helium are there
A 55 kg meteorite buries itself 4.5 m into soft mud. What was the speed of the meteorite when it initially impacted the mud
Two sound sources of 785.0Hz and 783.4Hz with the same intensity are played together. What do you hear and how frequently
You are driving down the road when you see a deer in your headlights. It takes you 0.5 seconds to react. Once you react you start braking, and you decelerate at 3m/s2. What was your speed before you hit the brakes
The intensity of sunlight that reaches Jupiter (orbiting at about 5 AU) is approximately what fraction of that at Earths orbital distance.
A bicycle tire with a radius of 0.42 m has a linear velocity of 2.6 m/s and an tangential acceleration of - 1.0 m/s2. What is the angular velocity of the tire
A comet has a very elliptical orbit with a period of 121.0 y. what is its greatest distance from the Sun
A 4 kg mass is attached to the end of a horizontal spring on a smooth surface. It is pulled 3 meters away from equilibrium and released. What is the maximum speed of the mass during its motion
The potential difference across a resting neuron in the human body is about 105.0 mV, How much power does the neuron release
A research Van de Graaff generator has a 3.80 m diameter metal sphere with a charge of 1.06 mC on it. What is the electric potential on the surface of the sphere
While a roofer is working on a roof that slants at 42.0 degrees above the horizontal, If it starts 4.35 m from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on ..
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