Physics, 27.11.2019 05:31 torquishag

Auniform pole is propped between the floor and the ceiling of a room. the height of the room is 7.11 ft, and the coefficient of static friction between the pole an the ceiling is 0.671. the coefficient of static friction between the pole and the floor is greater than that between the pole and the ceiling. for parts () assume the mass of the pole is 3.1 ibm and its length is 7.71 ft. give your answers in pounds of force (lbf). (a) find the weight of the pole. w - + (b) find the normal force on the pole from the ceiling. n = + (c) find the frictional force from the ceiling. y + (d) find the normal force from the floor n = 9 + (e) find the frictional force from the floor f = y + for part (f), assume you can make the pole any way you like, out of any material, with any radius and any length. (f) what is the length of the longest pole that can be propped between the floor and the ceiling (in feet)?

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 23:50

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

Answers: 3

Answer

Physics, 22.06.2019 00:50

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Answers: 1

Answer

Physics, 22.06.2019 04:40

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

Answers: 3

Answer

Physics, 22.06.2019 11:10

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Answers: 3

Answer

You know the right answer?

Auniform pole is propped between the floor and the ceiling of a room. the height of the room is 7.11...

Questions