PHYSICS
HIGH SCHOOL

Answer:

Newton’s second law of motion states that the acceleration of an object is directly proportional to the net force acting on it.

What is Newton’s second law of motion?Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate.

F = ma

where

F = force

m = mass

a = acceleration

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Answer:

directly is the answer on edguinuity

HIGH SCHOOL

Emily's vacuum has a power rating of 200w if the vacuum cleaner does 360000j of work how long did Emily spend vacuuming

Power = (work) / (time)

Multiply each side by (time): (power) x (time) = (work)

Divide each side by (power): time = (work) / (power) =

(360,000 J) / (200 W) = 1,800 sec

= 30 minutes

MIDDLE SCHOOL

Jordan exercises one to two times a week. She usually works out alone. Between meals, she sometimes snacks on potato chips from the bag. Which suggestion would least improve Jordan's overall fitness? exercise with friends or join a team eat snacks from a smaller-sized bag increase exercise frequency eat more meals at restaurants NextReset

Last option eat more meals at restaurants

The answer is D, the last one

MIDDLE SCHOOL

If a 3-kilogram iron ball is acted upon by a force of 3 newtons, what will be the result?

F=m*a; a=F/m

a=3/3=1 m/s²

Answer:

1 m/s²

Explanation:

F=m*a; a=F/m

a=3/3=1 m/s²

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HIGH SCHOOL

When a beam of light passes at an oblique angle into a material of lower optical density, the angle of incidence is A. less than the angle of reflection.

B. less than the angle of refraction.

C. greater than the angle of reflection.

D. greater than the angle of refraction.

The correct answer is letter B. less than the angle of refraction. When a beam of light passes at an oblique angle into a material of lower optical density, the angle of incidence is less than the angle of refraction. The reason for that because the beam of light passes through an oblique angle.

Penn Foster Students: less than the angle of refraction