Answer:
The mass of the body is 2.2 kg.
Explanation:
Given that,
Force acting on a body 1,
Force acting on a body 2,
Direction,
Acceleration,
To find,
Mass of the body.
Solution,
Let F is the net force acting on the body. It is given by :
F = 43.22 N
Second law of motion is given by :
F = ma
m = 2.16 kg
or
m = 2.2 kg
So, the mass of the body is 2.2 kg.
Answer:
a) 6.4 kJ
b) 43.4 kJ
Explanation:
a)
= Heat absorbed = 37 kJ
= Coefficient of performance = 5.8
= Work done
Heat absorbed is given as
=
37 = (5.8)
= 6.4 kJ
b)
= work per cycle required
= +
= 37 + 6.4
= 43.4 kJ
The answer is 54.675 J
<span>The kinetic energy (Ke) of an object is the product of half of its mass (m) and the square of its velocity (v²):
</span>Ke = 1/2 m * v²
We have:
Ke = ?
m = 15 kg
v = 2.7 m/s
_____
Ke = 1/2 * 15 kg * (2.7 m/s)² = 1/2 * 15 kg * 7.29 m²/s² = 54.675 kg * m²/s²
Ke = 54.675 J
Use a little liquid dishwashing detergent (the kind you use for hand washing dishes) to pretreat the stains. Apply a few drops to each stain and let it soak in, rubbing it gently to help work it all the way in if you need to. Wait 5 minutes, and then rinse with warm water.
Answer: Hi!
A neuron is a basic working unit of the brain. Neurons are special cells designed to transfer information to other nerve, muscle, or gland cells. They are pretty cool - looking too! (A slightly irregular circular shape with branches reaching out from all sides.) A neuron is a nerve cell. Nerve cells are the way of communication in the nervous system.
Hope this helps!