Danielle exerts a 14.0 n force to compress a spring by a distance of 8.00 cm. what is the spring constant of this spring? a. 1.75 n/m b. 175 n/m c. 17.5 n/m d. 0.175 n/m

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.