Which of the following is a need of most plants?
a. to release carbon dioxide to the environment.
b. to take up oxygen from the environment.
c. to release water through their leaves.
d. to capture sunlight to perform photosynthesis.

You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)