Explain step by step 1) How much force was
used in order to push an object 4 meters if the work done is 22Nm

2) A person uses a force of 7N is used to pull a box for 8 seconds with a speed of 1.5 m/a. Calculate the magnitude of work done by the person

3) A 2kg object is pushed from a speed of 3m/a to 7/ms. How much work was done on the object?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.