Which is a true statement about waves?

A

They always travel in every direction at the same time.

B.

They travel at different speeds through different materials.

c.

They cannot travel through liquids or solids.

D.

They

They can only travel through vacuum.

Draw the position vs. time graph for a person walking at a constant speed of 1m/s for 10 seconds. On the same axes, draw graph for a person running at a constant speed of 4m/s

on june 21 some earth locations have 24 hours of daylight these locations are all between the latitudes of

Lightning heats the surrounding air to

An insect sit's on the edge of a spinning record that has aradius of. 15m. The insect's speed is about. 5m/s when record isturning at 33 1/3 rpm. What is the insect's acceleration?

Professor Goetz took a heavy marine 100 foot, 0.75 lb per foot rope and through it through his office window. One end of the rope touches the ground. Professor Goetz missed his lunch and can only exert 300kcal (the equivalent of a healthy sandwich).

In a scientific experiment, the_ changes in response to another change. O O A. hypothesis B. conclusion O O O C. dependent variable O D. independent variable

How do animals affect the amount of carbon in earth's atmosphere

A 1600-kg car travels at a speed of 12.5m/s what is its kinetic energy

I'm hooke's law F=kx, what does the k stand for

The temperature of an object increases by 30.2 °c when it absorbs 3715 j of heat. calculate the heat capacity of the object.