A force of 550 N is applied to push a 45 kg crate across a 4 meter horizontal floor. The floor has a coefficient of friction of 0.3 with the crate. What velocity will the crate have
after being pushed?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

Ice at 0.0∘c has a density of 917 kg/m3. a 3.00 cm3 ice cube is gently released inside a small container filled with oil and is observed to be neutrally buoyant. what is the density of the oil?