The 1800 kg tractor exerts a force of 1.95 104 n backward on the pavement, and the system experiences forces resisting motion that total 2400 n. if the acceleration is 0.230 m/s2, what is the mass of the airplane in kilograms?

The speed of light can be used to measure the

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?