Water bending around a rock in the middle of a lake disrupts the water behind the rock. This is an example of which wave property?

diffraction

reflection

refraction

interference

Explain what happens when a massive star ends its life as a supernova

Ashanti is 18 months old. When her mom leaves her at the babysitter's house, Ashanti cries initially. After a few moments, she stops crying because her mom is "out of sight and out of mind.

What quantities determine the resistance of a piece of material? Choose all that apply. The length of the piece of material The cross-sectional area of the piece of material The type of material The voltage across the material The current flowing

Consider a long, cylindrical charge distribution of radius R with a uniform charge density rho. Find the electric field at distance r from the axis, where r < R. (Use any variable or symbol stated above along with the following as necessary: ε0.)

According to chapter 18 explain why a purple flower appears purple when white light shines on it

What are hypotheses suggesting why urban children have more food allergies than children from rural areas? Select the TWO answers that are correct.

Which is a correct statement of what occurs at a turbine during electricity production?

2. Which graph shows a possible voltage profile over time for a 12 V lantern battery as it provides power to a bank of electric lights?

How would you describe the interaction between opposite (N-S or S-N) magnetic pols?

Which of the following sequences correctly identifies the orders of the lobes of the cortex from anterior to posterior?