Velocity is displacement divided by time, v = d/t. Given this, what is the basic SI units for velocity?

Two objects are separated by a distance r. The mass of object 1 is less than the mass of object 2. Describe two changes in the objects' arrangements that will decrease the gravitational force between them.

As water flows across the surface of the earth it dissolves material as it travels. What property of water does this demonstrate? a Water becomes more dense as it solidifies. b Water is a solvent. c Water has a high surface tension.

The type of radioactive decay in which the mass number and atomic number remain unchanged is A) beta radiation. B) alpha radiation. C) positron radiation. D) gamma radiation.

Use evidence to explain why glass refracted more light than air or water

What do all isotopes of an element have in common

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation

Suppose two stars are located in region a of the h-r diagram shown in the figure below. Star X appears much dimmer that Star Y as seen from Earth. Which Star can be inferred to be nearer to Earth, and how do you know?

A student examining a joint observes collagen-rich connective tissue fibers linking the bones, but finds no synovial cavity. Which structural classification fits the observed joint?

How to identify additional materials

Tarzan runs at 6 m/s and grabs a vertical vine (negligible mass) 4.1 m long which is tied to a tree at the top. Tarzan swings up. Determine the maximum height Tarzan will swing up and the angle the vine makes respect to vertical.