A person located on the equator is orbiting the center of the Earth to the East at 1670 km/s.

The quantity work has to do with a force causing a displacement. Work has nothing to do with the amount of time that this force acts to cause the displacement. Sometimes, the work is done very quickly and other times the work is done rather slowly. For example, a rock climber takes an abnormally long time to elevate her body up a few meters along the side of a cliff. On the other hand, a trail hiker (who selects the easier path up the mountain) might elevate her body a few meters in a short amount of time. The two people might do the same amount of work, yet the hiker does the work in considerably less time than the rock climber. The quantity that has to do with the rate at which a certain amount of work is done is known as the power. The hiker has a greater power rating than the rock climber.

Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation.

Power = Work / time

or

P = W / t

5 0

3 years ago

Please select the word from the list that best fits the definition Fossils up to 75,000 years old can be dated with ______.

mash [69]

Hello Paige,

Question - Please select the word from the list that best fits the definition Fossils up to 75,000 years old can be dated with ______.

Answer - Carbon 14

5 0

3 years ago

Read 2 more answers

in the diagram, q2 is +34.4*10^-6 C, and q3 is -72.8*10^-6 C. The net force on q2 is 225 N to the right. What is q1? Include the

sesenic [268]

Answer:

q₁ = -6.54 10⁻⁵ C

Explanation:

Force is a vector quantity, but since all charges are on the x-axis, we can work in one dimension, let's apply Newton's second law

F = F₁₂ + F₂₃

the electric force is given by Coulomb's law

F = k q₁q₂ / r₁₂²

let's write the expression for each force

F₂₃ = k q₂ q₃ / r₂₃²

F₂₃ = 9 10⁹ 34.4 10⁻⁶ 72.8 10⁻⁶ / 0.1²

F₂₃ = 2.25 10³ N

F₁₂ = k q₁q₂ / r₁₂²

F₁₂ = 9 10⁹ q₁ 34.4 10⁻⁶ / 0.1²

F₁₂ = q₁ 3,096 10⁷ N

we substitute in the first equation

225 = q₁ 3,096 10⁷ +2.25 10³

q₁ = (225 - 2.25 10³) / 3,096 10⁷

q₁ = -6.54 10⁻⁵ C

4 0

3 years ago