Putting a beaker of water in a microwave and turning it on for a minute or two will increase the temperature of the water. Describe an experiment to investigate the relationship between the time the microwave is on and the increase in temperature of water in a beaker. In your answer, include: The equipment you will use The measurements you will take The safety precautions you will take

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

What is special about a dc circuit ?