Answer:
The force is 272.73 newtons
Explanation:
We're going to use impulse-momentum theorem that states impulse is the change on the linear momentum this is:
(1)
Impulse is also defined as average force times the time the force is applied:
(2)
By (2) on (1):
solving for 
:
(3)
We already know Δt is equal to 0.22 s, all we should do now is to find 
and put on (3) (
the initial momentum and 
the final momentum). Linear momentum is defined as 
, using that on (3):
(4)
Velocity (v) are vectors so direction matters, if positive direction is the right direction and negative direction left 
and 
so (4) becomes:
(5)
Using (5) on (3):
Answer:
F = 25530 N
Explanation:
F(net) = ma
F(net) = 2553 kg•(10) m/s² = 25530 N
Answer:
light waves can be converted to electricity through <em>a solar cell</em>
Explanation:
Answer:
0.208 N
Explanation:
Parameters given:
Current, I = 2A
Angle, A = 60°
Magnetic field strength, B = 0.2 T
Length, L = 0.6 m
Magnetic force is given as:
F = I * L * B * sinA
F = 2 * 0.6 * 0.2 * sin60
F = 0.24 * sin60.
F = 0.208 N
For starters, this question isn’t really about relativity. It’s about
energy, and E=mc^2 only makes sense if energy has the units of
(mass)*(velocity)^2. So we might as well ask: why is kinetic energy
defined as KE = ½*mv^2?
