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Question: Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant (and quite modest) acceleration. A train travels through a congested part of town at 5.0m/s. Once free of this area, it speeds up to 13m/s in 8.0 s. At the edge of town, the driver again accelerates, with the same acceleration, for another 16 s to reach a higher cruising speed.
Question 1: What is the final speed?
I need help to determine the final speed and also explain how you got the answer please.
In cesium atoms (Z = 55), the 55th electron has principle quantum number n=6 and is outside closed shells, which partially shield the nuclear charge. First, suppose the shielding effect of the 54 inner electrons is perfect, and use the Bohr Theory t..
A 50 gram ball enters a a pendulum with mass 200 g. The pair then swings up to a height of 12 cm. Find the velocity at which the pair move immediately after the collision
1. Estimate the rate of speed (length per time) at which the hair on your head grows. Use your own experience as a guide for your answer. First express your estimate in inches per second and then in meters per second. Use scientific notation.
A toy car with a mass of 120 g moves to the right with a speed of 0.62 m/s. A small child drops a 21.0-g piece of clay onto the car, What is the change in speed of the car
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 81.0 m/s at ground level. The engines then fire.
A skier is accelerating down a 30 degree hill at 3.60 m/s^2. How long would it take her to reach the bottom of the hill, assume she starts from rest and accelerates uniformly, if elevation change is 170m.
If the diameter of the fifth circular orbit of the hydrogen atom is 26.5 A, what is the frequency of revolution
An asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 115 km and with a period of 49.0 h. Find the escape velocity from the asteroid
question two bumper cars of equal mass m700 kg collide head-onelastically. car 1 was moving to the right at 1.5 ms
Light of wavelength 550. nm in air is found to travel at 1.96x10^8 m/s in a certain liquid. Determine the frequency of the light in air
question 1two astronauts yuri and valentina are flying their rockets towards each other both at a speed of 09c as
define the speed of the particle when the string is parallel to the electric field.
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