The FREQUENCY of light remains unchanged once it leaves the source.
Each BB 0.349 grams and 5.386 grains. 349 mg & 5.386 grains each steel BBs.
Answer:
False
Explanation:
It is not necessary, that when the initial speed of the object is zero then it must be at origin.
It may be the object starts motion from the left of origin.
A) 1.05 N
The power dissipated in the circuit can be written as the product between the pulling force and the speed of the wire:

where
P = 4.20 W is the power
F is the magnitude of the pulling force
v = 4.0 m/s is the speed of the wire
Solving the equation for F, we find

B) 3.03 T
The electromotive force induced in the circuit is:
(1)
where
B is the strength of the magnetic field
v = 4.0 m/s is the speed of the wire
L = 10.0 cm = 0.10 m is the length of the wire
We also know that the power dissipated is
(2)
where
is the resistance of the wire
Subsituting (1) into (2), we get

And solving it for B, we find the strength of the magnetic field:

Answer: 0.55m
1. First find Vf
• 4 Sin(10)=0.7
•Vf= 0.7
2. Find time
•9.8=0.7/t
•9.8t=0.7
•t=0.07
3. Find distance
• 4 Cos(10)=d/0.14 < ————- double time
• d=0.55m