Answer:
It increases to three times its original value. Given the same radius of wire and other constant property. current is directly proportional to the magnetic field.
B1=B2
MoI1/2pir=MoI2/2pir; cancel the same values on both sides
B2/B1=6/2 =3
Explanation:
Answer:
option B. Limestone
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D.
All follow an elliptical path that has two foci, rather than a circular path.
Kepler found paths are elliptical, not circular
Answer:
given,
mass of the block = m₁
mass of the another block = 3 m₁
initial Amplitude, A = 6 cm
final amplitude = 6 cm
total mechanical energy = 12 J
total energy of the block spring
A is the amplitude and k is spring constant
initial energy is equal to 12 J
from the above expression we can say that
Energy of the given system depends up on the magnitude of spring constant and the amplitude.
so, energy of both the system will be same.
we know,
Answer:
A) Car B has more energy than Car A
Explanation:
The kinetic energy of a car is given by:
where
m is the mass of the car
v is its speed.
In this problem, we know that:
- The speed of car B is greater than the speed of car A
- We assume that the mass of the two cars is the same
Therefore, since the kinetic energy is proportional to the square of the speed, this means that car B has greater kinetic energy than car A.