Work = (Force) x (Distance)
Since the calculation of work involves distance to the same extent as force, any force, no matter how small, can do any amount of work, no matter how large, by proper manipulation of the distance.
Work = F x D
or D = W / F
You want ---> 2W = (F/2) x Q
Q = (2W) / (F/2) = 4W / F = 4D
By pushing 4 times as far, half the force does twice the work.
If force F1 is farther from the pivot than force F2, then F2 must be twice the magnitude of F1 to create a net torque of zero on the rod. This is because torque is the product of the force and the distance from the pivot point, so for the torques to balance out, the force nearer to the pivot must be greater.
vertical lift versus slope the work done is the same (force * distance), but with a say 30 degree slope you need only half the force but need to travel twice as far to raise the load the same height vertically
In order to reduce the magnitude of the electrostatic force between two charged particles by half, you canEITHER: reduce the magnitude of the charge on either one by 50% of its original value,OR: increase the distance between the particles to 141.42% of the original distance.
No, half of twice is once.
The desk is exerting a gravitational force, equal in magnitude but opposite in direction to the force of gravity acting on the book. This force has a magnitude of 4.9 newtons (N) downwards, as gravity pulls objects with a force of 9.8 N/kg and the book has a mass of 0.5 kg.
If there were two positive charges, one of 0.1 coulomb and the second of 0.2 coulomb, they would repel each other with a force that depends on the product 0.2 × 0.1. Thus, if each of the charges were reduced by one-half, the repulsion would be reduced to one-quarter of its former value.
Magnitude is brightness. As stars are further away they're dimmer. It may seem like a star that twice as far away would be half as bright but it doesn't work that way. Brightness falls off in proportion to the square of the distance away. A star that is twice as far away is one-fourth as bright.
If you do work on an object in half the time, your power output is twice as high. Power is the rate at which work is done, so if the time to do the work is halved, the power output is doubled to maintain the same amount of work done per unit time.
Semi annual payment means payment done every half year or twice a year.
Two and a half, surely.
The centripetal force always acts perpendicular to the displacement of the object moving in a circular path. Since the work done is the product of force and displacement in the direction of force, and the displacement is perpendicular to the centripetal force, the work done by the centripetal force over a full rotation is zero.
Half of 50 is 25 and twice of that is 50. So 50.