Answer:
b
c
e
h
Explanation:
Note that the swing direction was not giving in the question and direction could be sideways (in a turn) or in a track or both
The question show something in common ...acceleration
So let's look at the statements and pick the correct ones
a is false while b is correct as the train is accelerating
c is correct. The train is accelerating even thou the speed could not be ascertained
d is false and not feasible as the train is accelerating
e is true as the train maybe moving at a constant speed in a circle
f is false. This could be constant velocity in a circle. Same as g (false)
h is true. It's accelerating
Answer:
Explanation:
area of loop = 6.3 x 10⁻⁴ m²
Total flux ( initial )
nB A
= 150 x .06 x 6.3 x 10⁻⁴
Final magnetic flux
150 x .03 x 6.3 x 10⁻⁴
change in flux
150 x .06 x 6.3 x 10⁻⁴ - 150 x .03 x 6.3 x 10⁻⁴
= 28.35 x 10⁻⁴ Weber .
b ) voltage induced = rate of change of flux
= change in flux / time
= 28.35 x 10⁻⁴ / 15 x 10⁻³
= 1.89 x 10⁻¹ V
c )
current induced = voltage induced / resistance
= 1.89 x 10⁻¹ / 4
= .4725 x 10⁻¹ A
= 47.25 m A .
the answer is A compound is represented by two or more elements in a definite proportion. That is represented by H2O.
Answer:
3.55 T
Explanation:
Applying,
F = BILsin∅.............. Equation 1
Where F = Force, B = magnetic Field, I = current, L = Length of the wire, ∅ = Angle between the wire and the magnetic field
make B the subject of the equation
B = F/ILsin∅.................. Equation 2
From the question,
Given: F = 2.45 N, L = 3.00 cm = 0.03 m, I = 23.0 A, ∅ = 90° (Perpendicular)
Substitute these values into equation 2
B = 2.45/(0.03×23×sin90)
B = 2.45/0.69
B = 3.55 T
Answer: true
Explanation: If the mass of an object is increased so is the gravitational pull