Answer:
TO POWER ELECTRIC GADGETS AND SAVE EARTH FROM POLLUTION
Explanation:
(1) 2m/s²
(2) 10 m
Explanation:
(1)
To calculate acceleration we use the formula below;
a = Δ V / Δ t where;
a = acceleration
v = velocity
t = time
Δ v = v₂ – v₁
a = (10 – 0) / 5
a = 10/5
= 2m/s²
(2)
To find distance we’ll use the formula below;
½ a * t² = x, where;
a = acceleration,
t = time, and
x = distance
We are given t as 10s and acceleration is 2ms⁻², so;
x = ½ * 2 * 10
x = 10 m
The frequency waves are higher as it approaches, and lower as it goes past.
For this case we have that by definition, physical power refers to the amount of work done for a unit of time.
So:
Where:
W: It's the work
t: It's time
The power units are in
So, according to the problem data we have:
Clearing the work of the formula:
Thus, the work is 1200 joules.
Answer:
Option C