Answer:
5.58 × 10⁻¹¹ N/C
Explanation:
Electric force on a charge, F = qE
where,
F is the electric force in Newton (N)
q is the unit charge in Coulomb (C)
E is the electric field intensity in N/C
Also, the weight of an object, W = mg
Where,
w is weight of an object in N
m is mass in kg
g is acceleration due to gravity in m/s²
Now from the question given, the electric force exerted on the proton is equal in magnitude to the proton's weight.
⇒ F = w
qE = mg
making electric field, E the subject of the equation,
E = (9.11 × 10⁻³¹ kg × 9.8 m/s) ÷ 1.6 × 10⁻¹⁹ C
E = 55.8 × 10⁻¹² N/C
E = 5.58 × 10⁻¹¹ N/C
Answer:
Explanation:
= Permeability of free space =
d = Diameter of core = 12 mm
r = Radius =
l = Length of core = 8.4 cm
N = Number of turns = 123
Inductance is given by
The self-inductance of the solenoid is
Answer:
W = 8.92 10² kJ
Explanation:
For this exercise they give us the strength, we must calculate the distance traveled, for this we need the rocket acceleration let's use Newton's second law
F = m a
a = F / m
a = 20 103/1400
a = 14.29 m/s²
With kinematics we can find the distance traveled
² = v₀² + 2 a x
x = ( ²-v₀²) / 2 a
x = (50² -35²) / 2 14.29
x = 1275 / 28.58
x = 44.61 m
Let's calculate the work
W = F.d
The bold is vector; as indicated by the force is in the direction of movement the scalar product is reduced to the ordinary product
W = F d
W = 20 10³ 44.61
W = 8.92 10⁵ J
W = 8.92 10² kJ
THAT LINK IS A VIRUS NEVER GO TO A LINK and if you go to “goggle” you should see a camera icon and take a picture of the question and get the answer there
Answer:
40 km/h
Explanation:
First...
Look at the formula speed is equal to the distance over time or s = d/t.
Next...
Use the formula: 240/6.0
Finally...
Solve: 40
So the answer: 40 km/h