Why is it harder to hear someone through a wall?

4) A motorcycle travels at a constant 90 km per hour in the positive direction down a straight line highway. What is the displacement, in standard units, of the car 75 seconds later?

You find it takes 220 n of horizontal force to move an unloaded pickup truck along a level road at a speed of 2.4 m/s.

What type of electricity is produced by rotating a coil at a steady rate in a steady magnetic field?

What feature of an object does not affect air resistance?

A 2.6 kg mass weighs 25.74 N on the surface of a planet similar to Earth. The radius of this planet is roughly 7.3 * 106 m. Calculate the mass of of this planet. The value of the universal gravitational constant is 6.67259 * 10-11 N · m2 / kg2

When a the irregularities of one surface come into contact with those of another surface, occurs

What type of wave passes through the spring in the frog toy? Why?

Different kinds of substances have different properties of metals

Magma appears to be rising underneath the mid-oceanic ridges. a. True b. False

The energy required to crack a material