Questions by Shabby

Questions by Shabby

The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of 2 2 . What is the measure of the angle? A) 30 degrees B) 45 degrees C) 60 degrees D) 90 degrees

asked Oct 25, 2020

2 answers

3 votes

214k views

a 2,000-kilogram railroad car moving at 8m/s to the right collides with a 6,000-kilogram railroad car moving at 3m/s to the west. If the cars couple together, what is their velocity after the collision?

asked Aug 24, 2020

1 answer

4 votes

18.5k views

In which one of the following systems is there a DECREASE in Gravitational Potential Energy? Group of answer choices a.A girl jumps down from a bed. b.A spring is compressed horizontally c.A crate rests

asked Jun 1, 2020

1 answer

4 votes

158k views

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