Answer:
The answer would be 5.6 kg of a mass.
Explanation:
p= mv
m= p/ v
The explanation of that is:
momentum = mass× velocity
mass= momentum / velocity
Hope this helped!
Answer:
The acceleration is 10 m/s²
Explanation:
The question seeks to show the relationship between force, mass and acceleration. Hence, the formula to be used here is that of force which is shown below
F = ma
where F is the force (800 N)
m is the mass (80 kg)
a is the acceleration (unknown)
From the formula above (Force = mass multiplied by acceleration)
800 N = 80 kg × a
a = 800 ÷ 80
a = 10 m/s²
Sand. You can identify tiny sugar crystals.
The force generated by a magnetic field B perpendicular to a wire carrying a current I is

where L is the length of the wire.
If we divide both sides for L, we get

where the ratio on the left is the force per meter of length, which is exactly what we want to find. So:
It means they have very high resistance.
High resistance means the power cannot fully pass through the wire. Some of the power is lost in the form of light, heat, etc.
Low resistance means the current fully passes through. The wire would then stay cold and nice.