1. Newton's Second Law tells us how to calculate the acceleration if we know the force and the
mass.
F = m a
We are interested in determining the acceleration, so we divide both sides of the equation by m
to get
F / m = a
a = (20 N) / (5 kg)
a = 4 N / kg = 4 (kg m /s2
) / kg = 4 m / s 2
Answer:
Smoke detectors
Explanation:
This is because the ionization chamber in smoke detectors uses radiation, a form of heat transfer to detect smoke.
.The NRC allows beneficial use of smoke detectors which is a radioactive material because a smoke detector has the ability to save lives . it's ability to save lives outweighs any health risk from the radiation. The smoke detector use a very minimal amounts of radioactive materials.
Answer:
The position after 3 minutes is - 800 m.
Explanation:
speed, v = 100 m/s
time, t = 3min = 180 s
initial position, x = 1000 m
let the distance traveled in 3 minutes is d
d = 100 x 180 = - 18000 m
So, the position is
= - 18000 + 1000 = - 800 m
F = 1/T = 20,000 so T = 1/20,000
<span>distance = speed * time </span>
<span>L = 343 T </span>
<span>L = 343/20,000 </span>
<span>L =. 01715 meters or about 1.7 centimeters</span>
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