When an object is stationary, all of the forces acting on it are balanced

Which of the following would require the greatest number of calories? 1. Heating 1 g of water from 10◦C to 80◦C 2. Heating 10 g of water from 10◦C to 40◦C 3. Heating 1000 g of water from 10◦C to 12◦C 4. Heating 100 g of water from 10◦C to 50◦C

How long must a current of 100ma flow so as to transfer a charge of 80c

The proton is a hadron consisting of three quarks: A. u, u, d B. c, u, d C. u, d, d D. c, c, u

Now solve the differential equation V (t) = -CRdV (t) dt for the initial conditions given in the problem introduction to find the voltage as a function of time for any time t. Express your answer in terms of q0, C, R, and t.

How would you ground an electrical appliance

The following molecule can be synthesized from an epoxide and alkyllithium reagent, followed by aqueous workup. However, there are two ways in which this molecule can be formed.

Fifteen grams of substance X at 95 degrees Celsius is mixed with 45 grams of substance Z at 85 degrees Celsius in a container which was originally at 25 degrees Celsius.

An advanced computer sends information to its various parts via infrared light pulses traveling through silicon fibers (n = 3.50). To acquire data from memory, the central processing unit sends a light-pulse request to the memory unit.

Last week you determined what wavelength of light works best for measuring p-nitrophenol in solution using a spectrophotometer. you then determined the extinction coefficient for p-nitrophenol in solution.

What three ways does the respiratory system modify air before it reaches the lungs?