Physics, 10.03.2021 02:30 arielpraczko1

A 5.0 kg rock is attached to a rope that is 1.0 meters in length. The other end of the rope is attached to a motor that forces the rope to rotate with a rotational speed of 4.0 rad/s. Calculate the magnitude of the centripetal force acting on the rock.

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 17:10

Space-time metric ds2= -dt2+at2dx2+bt2dy2+ct2dz2 (a)how does the area of a rectangle with vertices at ( x=0, y=0, z=0 ), (1,0,0 ), ( 0,1,0 ) and (1,1,0 ) changes with time? (b) if a photon moving in the x direction starts from the origin at t=1, when does it reach x=l? (ds=0 for the trajectory of a photon.) (c) the proper time for a particle is defined by cd=ds. what is the proper time for a particle to move along the trajectory ( x(t)=t, y(t)=0, z(t)=0 ) from t=0 to 1 ? what is the condition on the parameter a so that the velocity of the particle never exceeds the speed of light ?

Answers: 2

Answer

Physics, 22.06.2019 14:40

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Answers: 1

Answer

Physics, 22.06.2019 19:30

Which describes increasing the efficiency of energy resource

Answers: 1

Answer

Physics, 22.06.2019 23:40

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.

Answers: 3

Answer

You know the right answer?

A 5.0 kg rock is attached to a rope that is 1.0 meters in length. The other end of the rope is attac...

Questions