Explain why the tip of a sewing needle is sharp

Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1 L, undergoes a process to a final state where the pressure is 8 bar and the volume is 2 L. During the process, the pressure-volume relationship is linear.

Given a force of 88 N and an acceleration of 4 m/s2, what is the mass?

Grace rides her bike at a constant speed of 6 miles per hour. How far can she travel in 2 1/2 hours?

What is a negative pressure test deepwater horizon?

How does a parallel circuit change when a branch is added? 1. The total resistance increases, so the current in the circuit decreases. 2. The total resistance decreases, so the current in the circuit increases. 3.

How are the relationships of elements in a group different from the relationships of elements in a period?

Children in a tree house lift a small dog in a basket 4.00 m up to their house. If it takes 187 J of work to do this, what is the combined mass of the dog and basket?

What happens to the speed of the particles if the temperature is increased

A 65-year-old male enters the hospital with high blood pressure, damaged lungs, low blood-oxygen concentration, and throat cancer. What are all of these symptoms associated with?

At a certain factory, 340 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.00 m/s. (A motor maintains the belt's constant speed.) The coefficient of kinetic friction between belt and crate is 0.400.