Answer:Done doing there job, in the winter they have a break
Explanation:
Answer:
Im pretty sure its number 2
Explanation:
Answer:
1.6 x
N
Explanation:
If the force between two actual wires has this value, the current is defined to be exactly 1 A.
The force between two parallel wires carrying current can be defined as,
F= μ
L/ 2πd
where,
current
= 1Amp
current
= 2amp
Length 'L'= 1m
distance 'd'= 2.5m
permeability of free space 'μ'= 4πx
N/m
Putting the above values in the equation,
F=( 4πx
x 1 x 2 x 1 )/ 2πx2.5
F= 1.6 x
N
Answer:
e) True Yes both are constant
Explanation:
Let us propose the solution of the problem before reviewing the statements, we use Newton's second law
F - fr = m a
N- W = 0
N = mg
The equation for the force of friction is
fr = μ N
F - μ mg = m a
F = m (a- μ g)
Now let's review the claims
.a) False. Normal force and friction are constants.
.b) False. Both are constant.
.c) False. Both are constant.
d.) False
e) True Yes both are constant