A 6.06 kg object is swung in a vertical circular path on a string 5.11 m long.
The acceleration of gravity is 9.8 m/s.
If the speed at the top of the circle is
7.9 m/s, what is the tension in the string
when the object is at the top of the circle?
Answer in units of N.

Work = force × a. work b. energy c. distance d. momentum

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.