An Atwood’s machine consists of blocks of masses m1=10.0 kg and m2 = 20.0 kg attached by a cord running over a pulley as in the figure below: The pulley is a solid cylinder with mass M=8.00 kg and radius r=0.200 m. The block of mass m2 is allowed to drop, and the cord turns the pulley without slipping. a) Why must the tension T2 be greater than the tension T1? b) What is the acceleration of the system, assuming the pulley axis is frictionless? 6 c) Find the tensions T1 and T2.

An uplifted block of rock between two normal faults

What is the temperature in degrees celsius of a substance with a tempature of 49k

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?