Why do some things float but others sink if they have the same mass?

A car advertisement states that a certain car that Emily Miller love can accelerate from rest to 70km/h in 7 seconds. Fine the car's average accelerate

How thick is the Earth's surface?

Using Newton's second law of motion, if the force on an object is 20 N, and its mass is 5 g, what is its acceleration?

A motorcycle is moving at a constant velocity of 15 meters/second. Then it starts to accelerate and reaches a velocity of 24 meters/second in 3 seconds. What's the acceleration of the motorcycle over this time? Use.

Nonrenewable energy resources do not include which of the following?

When an electron moves from a lower to a higher energy level

Which of the following is all matter made of? A. Hot particles B. Cold particles C. Constantly moving particles D. Nonmoving particles

Which of the following has longest wavelength, a) blue light b) red light c) x-rays d) gamma rays?

are the properties of a specific element the same as the properties of a molecule made up of that element? why or why not

In what circumstance is displacement the same as distance traveled?