Answer:
1.5 N
Explanation:
You've left us to guess what the question is. I will Assume it is what's the force?
Givens
m = 3 kg
vi = 1.5 m/s
vf = 4 m/s
t = 5 seconds
Formula
F = m * (vf - vi)/t
Solution
F = 3 * (4 - 1.5) / 5
F = 1.5 N
Since the plant is falling, the gravitational energy decreases, so it means b) kinetic energy is increasing.
Hope this helps!! :)
Answer:
The correct answer is:
(a) 27.5 Joules
(b) 141.5 Joules
Explanation:
Given:
Energy,
Coefficient of performance refrigerator,
(a)
As we know,
⇒ 
or,
⇒ 
(b)
⇒ 
or,
⇒ 
When we say "<span>The moon's surface gravity is one-sixth that of the earth.",
we mean that the acceleration of gravity on the Moon's surface is 1/6 of
the acceleration of gravity on the Earth's surface.
The acceleration of gravity is (9.8 m/s</span>²) on the Earth's surface, so
<span>it would be (9.8/6 m/s</span>²) on the Moon's surface.
<span>
The weight of any object, right now, is
(object's mass) </span>· (acceleration of gravity where the object is located now) .
<span>
If the object's mass is 24 kg and the object is on the Moon right now,
then its weight is
(24 kg) </span>· (9.8/6 m/s²)
= (24 · 9.8 / 6) kg-m/s²
= 39.2 Newtons
Answer:
Less than 50N
Explanation:
Given that a pair of wires holding a hanging light that weighs 50N.
Since the hanging weight is equal to 50 N, the sum of the tension in the wires will also experience the same magnitude of force acting on the weight.
Considering each of the wire, the tension on each of the wire will surely be less than 50N
Therefore, the tension in each wire is less than 50N
m = decimeter
m = centimeter
m = millimeter
m = micrometer or micron
m = nanometer