But what are the choices??
Answer: I don't know my dude
Explanation:
Answer: 2 seconds is the unit rate.
Explanation:
We know that Jason does 30 pushups in 60 seconds at a constant rate, and we know that each push up takes 2 seconds.
then, we can write this as 30 pushups/60 seconds = (1/2) pushups per second.
Here, two seconds represents the time needed to do one pushup, is the unit rate (this means that we need 2 seconds to have a unit "one pushup")
Answer:
All of the above statements are true.
Explanation:
All matter is composed of atoms of which have subatomic particles. Subatomic particles are electrons, protons and neutrons. Each particle has electric charges.
Electrons have a negative charge, protons have a positive charge and neutrons have zero charge.
Between two nearby charges initially at rest, a type of forces, called electrostatic, is always established in such a way that, if the charged particles are small enough so that they can be considered punctual, the following conditions are met:
-
The force established between the two has a direction that coincides with an imaginary straight line that joins the two charges.
- The force exerted on one load points towards the other when the two have different signs, one positive and the other negative. (attractive force).
- The sense of force is directed to the opposite side of the charge when both have the same sign (repulsive force).
