A railroad car with a mass of 20000 kg rolls into a second
A railroad car with a mass of 20,000 kg rolls into a second stationary car with a mass of 40,000 kg. The cars latch together and move off with a speed of 1.2 m/s. How fast was the first car moving before the collision?
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water ripples are produced by making a cork oscillate up and down at a frequency of 5 hz the peaks of the ripples are
the solubility of ar in water at 25 c is 1610-3 m when the pressure of the ar above the solution is 1atm what is the
a patients thyroid gland is to be exposed to an average of 55 microcuries for 16 days as an ingested sample of
raindrops fall 1000 m from a cloud to the ground if they were not slowed by air resistance how fast would the drops be
a railroad car with a mass of 20000 kg rolls into a second stationary car with a mass of 40000 kg the cars latch
a 129-g mass is suspended 345 cm above a nonconducting flat plate directly above an embedded charge of q if the mass
a car is driven east for a distance of 49 km then north for 31 km and then in a direction 25deg east of north for 30 km
two small balls are given positive charges when they are a distance of 156 apart the repulsive force between them has a
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Write a letter to the editor on land pollution that threatens the health of individuals living in Guyana, and clearly define the problem.
In this unit, you will learn about physical development in middle childhood and adolescence. In middle childhood, we see important physical changes
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