The wind blows a 0.5 g leaf with a force of 0.008 n. if the leaf travels 25 m, how much work did the wind do on the leaf?
a. 0.13 j
b. 0.20 j
c. 0.63 j
d. 1.6 j

Write a question about how changing temperature affects the gas inside the sports ball

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.