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A car moves along an x axis through a distance of 910 m, starting at rest (at x = 0) and ending at rest (at x = 910 m). During the first 1/4 of that distance, its acceleration is +6.25 m/s2. During the next 3/4 of that distance, its acceleration is -2.08m/s2. What is (a) its travel time during the 910 m and (b) its maximum speed?
How far below the release point is the center of mass of two stones at t = 550 ms? (Neither stone has yet reached the ground.)
If 2.0 kg of water at 0degrees celsius is to be vaporized, how much heat must be added
Two charged dust particles exert a force of 8.5 x10-2 N on each other. What will be the force if they are moved so they are only one-seventh as far apart.
A girl leaves a physics classroom and walks 10m north to a drinking fountain. What is the girl's total displacment
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneous breaks into two alpha particles, what is the force between the two alpha particles when they are 7.00 x 10^-15 m apart
A ball traveled 188 meter before landing on the floor outside the ball park. Find the magnitude and direction of the ball velocity when it reaches the fence
Two masses, m1 = 2.10 kg and m2 = 9.51 kg are on a horizontal frictionless surface and they are connected together with a rope. What is the acceleration of the whole system
A spring of constant 290 N/m is used to launch a 1.2 kg block along a horizontal surface whose coefficient of sliding friction is 0.27
a meteorologist for a tv station is using radar to determine the distance to a cloud. he notes that a time of 0.28ms
How many half-lives are required for the number of radioactive nuclei to decrease to 1/1010 of the initial number
as a laudably skeptical physics student you want to test coulombs law. for this purpose you set up a measurement in
Suppose one gallon of gasoline produces 1.41×108 J of energy, and this energy is sufficient to operate a car for 20.0 miles. how many miles could the car go on a single tablet
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