For the first one 320
second
1200W
Data
R = 12 Ω ∆V = 120V I =? P =?
Solution:
According to Ohm’s law,
∆V = I R
I = ∆V / R
= 120 / 12
= 10 A
Power P = I ∆V
= 10 x 120
= 1200 W
Third
∆V = 120 V P = 60 W I =? R =?
Use the formula, P = I ∆V
I = P / ∆V = 60 / 120 = 0.5 A
∆V = I R
R = ∆V / I = 120 / 0.5 = 240 Ω
Answer:
a) N
b) m/s
Explanation:
a)
= radius of the orbit = 0.522 x 10⁻¹⁰ m
= magnitude of charge on each proton and electron = 1.6 x 10⁻¹⁹ C
Using coulomb's law , magnitude of electric force on the particle is given as
N
b)
= mass of electron = 9.1 x 10⁻³¹ kg
= speed of electron = ?
Centripetal force is being provided by the electric force, hence
Centripetal force = electric force
m/s
I would say that it depends on the size of the animal and where it was hit. It is possible that a large animal could survive.
The sum of balanced forces will always be equal to zero.
Answer:
0.83m/s forward
Explanation:
Velocity is the displacement divided by time.
Velocity =
Displacement is the distance moved in a specific direction;
→ 6meters forward
← 3meters backwards
→ 7 meters forward
Net displacement =7m + 3m = 10m forward
So;
Velocity = = 0.83m/s forward