A 0.015-kg ball is shot from the plunger of a pinball machine. because of a centripetal force of 0.028 n, the ball fol - lows a circular arc whose radius is 0.25 m. what is the speed of the ball?

Which of the following is an inference? A) the flower is pink. B) vinegar has a pungent aroma. C) a dog barks. D) a cup with steam coming out of it will be hot to the touch.

How do I Calculate the force between two objects that have masses of 70 kilograms and 2,000 kilograms separated by a distance of 1 meter

what is the difference between length, area, and volume? be sure to include dimensions in your explanation.

A 2.50 gram rectangular object has measurements of 22.0 mm, 13.5 mm, and 12.5 mm. what is the object's density in units of g/ml?

If a machine loses kinetic energy, potential energy increases by the same amount: True or False

A squirrel runs along an overhead telephone wire that stretches from the top of one pole to the next. It is initially at position xi=3.37 mxi=3.37 m, as measured from the center of the wire segment. It then undergoes a displacement of Δx=-6.

Imagine a 10 kg block moving with a velocity of 20 m/s to the left. calculate the kinetic energy of this block

Which do you think is the bigger problem among college students-the continued abuse of illegal drugs or the rising abuse of prescription and over-the-counter medications?

A man stands still on a moving walkway that is going at a speed of 0.4 m/s to the east. What is the velocity of the man according to a stationary observer?

Which, if any, of the heat engines violate (s) the second law of thermodynamics?