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A "rocket car" is launched along a long straight track at t = 0 s. It moves with constant acceleration a1 = 1.2m/s2 . At t = 2.4s , a second car is launched with constant accelerationa2 = 8.7m/s2 .
At what time does the second car catch up with the first one?
How far have the cars traveled when the second passes the first?
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Example of either positive freedom negative freedom (N). Indicate which each is by circling the Be able to explain your choice.
Write down the equation for a transverse sinusoidal wave with an amplitude of 2.5 cm and an angular frequency of 2.90 rad/s that is moving along the positive x-direction with a wave speed that is 5 times as fast as the maximum speed of a point on ..
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 1.8- cm-diameter pipe if the velocity in the smaller pipe is 8.0 m/s
When your friend is riding a 6.50-kg bicycle, the weight is supported more on the back tire and less on the front tire. what is your friend's weight
You have a mass of 87 kg and are on a 50-degree slope hanging on to a cord with a breaking strength of 221 newtons. Illustrate what must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved fro..
An electron is at rest just above the surface of a sphere with the radius of 1.90 mm and a uniformly distributed positive charge of 2.1 x10-15 C.
A bullet of mass 7.00g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface.What was the initial speed of the bullet
A woman stands on a scale in a moving elevator. Her mass is 60.0 kg, and the combined mass of the elevator and scale is an additional 802 kg, What does the scale read (in N) during the acceleration
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