A boy on a bicycle rides at 21.1 m/s a distance of 87.9 m. How long does it take?

Write down the methods of magnetizing?

A 1.40-kg particle moves in the xy plane with a velocity of v with arrow = (4.00 î - 3.30 ĵ) m/s. Determine the angular momentum of the particle about the origin when its position vector is r with arrow = (1.50 î + 2.20 ĵ) m.

What are the two main categories of ecosystems?

You're squeezing a springy rubber ball in your hand. If you push inward on it with a force of 1 N, it dents inward 2 mm. How far must you dent it before it pushes outward with a force of 5 N?

Now is studying wave a and wave b. Wave A is rated at 100 dB, and wave B is rated at 90 dB. Which statement can be made about the waves?

Which, if any, of the heat engines violate (s) the second law of thermodynamics?

The ball is moving at a constant speed of 0.5 m/s for 2.3 seconds how far does it go?

Which of these is a mixture? calcium carbon dioxide salt water potassium

A train travels 80 kilometers in 2 hours, and then 79 kilometers in 4 hours. What is its average speed?

What does it mean when we say science is a cycle?