If you put a straw into a glass of water, the straw looks to be bent, although nothing has really happened to the straw. The term that describes this property of light is A) absorption. B) diffraction. C) reflection. D) refraction

A pair of alkaline D batteries can provide about 98000 J of electric energy at 3.0 V. If a current of 2 A flows through two D batteries while they're in the circuit of a flashlight, how long will the batteries be able to provide power to the

Which of the following is a TRUE statement about the differences between electromagnetic and mechanical waves? A Electromagnetic waves are caused by vibration of particles and mechanical waves are caused by frequency, not amplitude.

A train travels from over city to another its initial velocity is lower than its final velocity this is a example of a. velocity b. neg acceleration c. speed d. pos acceleration

Think critically the proper pH range for a swimming pool is between 7.2 and 7.8. Most pools use two substances, Na2CO3 and HCI, to Maintain this range. How would you adjust the pH if you found it was 8.2 and 6.9

Is balancing a egg on the eclipse science or pseudoscience

Is physical science part of physics?

Which statement is true about the atomic mass?

Velocity is: а - speed and direction. b - distance divided by time. c - always the same as speed. distance multiplied by time. d - distance multiplied by time

The gauge pressure in each of the four tires of an automobile is 230 kpa. if each tire has a "footprint" of 180 cm2 (area touching the ground), determine the mass of the car.

A bus travels 20 KM and 30 minutes what is average speed of the bus