Answer: The answer is electricity and magnetism.
Explanation: The atom's center, or nucleus, is positively charged and the electrons that whirl around this nucleus are negatively charged, so they attract each other. The reason the force is strong is because the atom is so small.
The answer is A.
When a substance is a gas, it fills its container no matter how many particles it's made of, however the number of particles present will directly affect the pressure and temperature of the system.
Answer:
The answer is 1020 meters.
Explanation:
The values given by the problem are:
1. T= The falling time of the rock [Seconds]
2. H=The sound velocity constant [meter/second]
The Velocity normal formula is
V=H/T
340=H/3
340*3=H
This solution considers the physic of the traveling wave sound but not really the rock falling problem, because the problem ask for the height of the cliff not even more.
Answer:
0 m/s^2
Explanation:
Use a formula to answer the question
d = r * t
The object is not changing speed at any time, or if it is we are not told. The rate is the speed.
8 = r * 1 second
8 m/sec = r
The initial speed is 8 and the final rate is 8. There is no change. So when you use this formula
a = (vf - vi)/t we get a = (8 - 8)/1 = 0
There is no acceleration because there is no change in speed.
Answer:
Explanation:
Since the cardinal and ball have the same kinetic energy, it is possible to determine the ratio between speeds. (c for cardinal, b for baseball)
The ratio is obtained by multiplying each side by :
The value of this ratio is: