A student measure the mass of an 8 cm^3 block of brown sugar to be 12.9 g. what is the density of the brown sugar?

Why is it difficult to cut using a pair if of scissors with blunt blades

The electrons can be modeled as forming a uniform shell of negative charge. What net electric field do they produce at the location of the nucleus?

Suppose an electron and a proton move at the same speed. which particle has a longer de broglie wavelength? suppose an electron and a proton move at the same speed.

A circuit consists of a 171 - resistor and a 0.158-H inductor. These two elements are connected in series across a generator that has a frequency of 147 Hz and a voltage of 278 V.

Which switch configuration creates a short circuit? A. Switches 1, 3, and 4 closed, switch 2 open B. Switches 1, 2, and 3 closed, switch 4 open C. Switches 1 and 3 closed; switches 2 and 4 open D. Switch 1 open; switches 2, 3, and 4 closed

A train car has a mass of 10,000 kg and is moving at + 3.0 m/s. It strikes an identical train car that is at rest. The train cars combine. A train car has a mass of 10,000 kg and is moving at + 3.0 m/s.

A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5N.

Using the first definition of coefficient of elasticity given in the lab (based on velocity), if a ball strikes a surface with a speed of 10 m/s and rebounds just after the collsion with a speed of 3 m/s, what is the coefficient of elasticity

1. Car A has a mass of 8,000 Kg and is traveling at 40 miles per hour. Car B has a mass of 10,000 Kg and is traveling at 40 miles per hour. Which car has more kinetic energy?

Explain how the formation of an undertow differs from the formation of a longshore current.