Posts in category: Physics

A thin spherical shell with radius R1 R 1 = 3.00 cm c m is concentric with a larger thin spherical shell with radius 7.00 cm c m . Both shells are made of insulating material. The smaller shell has charge q1=+6.00nC q 1 = + 6.00 n C distributed unif

A penknife drops out of a sailor's hand while she is at the top of a mast. She times the knife's drop to the deck and measures 1.3 s. a) How high was she up the mast? b) With what speed did the knife hit the deck? c) What was the knife's average spe

A flower pot falls from a third storey window, 17.0 m above a sidewalk. a) With what speed does the pot hit the path? Answer Final Speed of a Falling Flower Pot - Physics Explained body { font-family: 'Segoe UI',

A uniform straight rod of mass M and length L is having small rollers of negligible mass at its ends. Rod is moving on smooth horizontal surface with constant speed V0 in gravity free space. Find the change in normal reaction at the rear roller from

A 1562.4-kg sports car (including driver) crosses the rounded top of a hill (radius = 99.14 m) at 19.03 m/s. Determine (a) the normal force exerted by the road on the car. Normal Force on a Car at the Top of a Hill - Physics Expl

A flea jumps straight up to a maximum height of 0.460 m . What is its initial velocity v0 as it leaves the ground? Initial Velocity of a Jumping Flea body { font-family: 'Segoe UI', sans-serif; background-color

The displacement vectors A ? and B ? shown in Figure P3.11 both have magnitudes of 3.00 m. The direction of vector A ? is ? 5 30.0°. Find graphically (a) A ? + B ?, (b) A ? - B ? ,(c) B ? - A , and (d) A ? - 2 B ? .(Report all angles counterclockwis

Most students adamantly state that they would never have turned up the voltage in the Milligram experiment. Do you think you would have refused to shock the learner? Looking at your own past behavior, what evidence suggests that you would go along w

Let rAl represent the density of aluminum and rFe that S of iron. Find the radius of a solid aluminum sphere that balances a solid iron sphere of radius r Fe on an equal-arm balance. Answer Radius of Aluminum Sphere to Bala

The three finalists in a contest are brought to the centre of a large, flat field. Each is given a meter stick, a compass, a calculator, a shovel, and (in a different order for each) the following three displacements: 72.4m, 32? east of north, 57.3m