Answer:
The left side of the equation i.e ∆p=MVo should be used
Explanation:
Momentum is the product of mass and velocity or the quantity of motion an object has.
Impulse is the change in momentum
If P is the momentum
If M is the mass of the object
Vo is the velocity of the object
∆p=P2-P1
Since the wall is stationary, P1 = 0
The momentum of the object itself is P2
Therefore, ∆p=P2
Since P2=MVo
∆p=MVo
Answer:
i'm pretty sure its B but i may be wrong if you dont wanna take the chance wait for someone
Explanation:
answer
Height at which kiwi reach=1.2m
Solution
In this question we have given
mass of apple,
mass of kiwi,
height from which apple is dropped,
Let the height at which kiwi reached is
here,
We will apply law of conservation of energy
it means,
potential energy of kiwi= potential energy of apple
......(1)
here g is gravitational acceleration
put values of and in equation 1
therefore, Height at which kiwi reach=1.2m
Answer:
a) -180.7 kN/C
b) -474.3 kN/C
c) 180.7 kN/C
Explanation:
For infinite planes the electric field is constant on each side, and has a value of:
E = σ / (2 * e0) (on each side of the plate the field points in a different direction, the fields point towards positive charges and away from negative charges)
The plate at -5 m produces a field of:
E1 = 2.6*10^-6 / (2 * 8.85*10^-12) = 146.8 kN/C into the plate
The plate at 3 m:
E2 = 5.8*10^-6 / (2 * 8.85*10^-12) = 327.5 kN/C away from the plate
At x < -5 m the point is at the left of both fields
The field would be E = 146.8 - 327.5 = -180.7 kN/C
At -5 m < x < 3 m, the point is between the plates
E = -146.8 - 327.5 = -474.3 kN/C
At x > 3 m, the point is at the right of both plates
E = -146.8 + 327.5 = 180.7 kN/C