A force of 80 N is exerted on an object on a frictionless surface for a distance of 4 meters. If the object has a mass of 10 kg, calculate its velocity. v =

Which of the following represents units of geologic time in increasing order? A. Eon, era, period, epoch B. Epoch, period, eon, era C. Era, eon, period, epoch D. Epoch, period, era, eon

A loop of wire lies flat on the horizontal surface in an area with uniform magnetic field directed vertically up. The loop of wire suddenly contracts to half of its initial diameter. As viewed from above induced electric current in the loop isa.

All incident and reflected rays obey which law?

We use electrical devices that produce motion, light, and sound. Which aspect of energy explains why these devices are possible? A. Energy can't be created. B. Energy can change from one form to another. C. Energy isn't made of matter. D.

Which of these is an example of a chemical change? Question 10 options: mixing a salad dressing digesting a salad preparing a salad dicing an onion

Which paragraph shows the correct relationship between kinetic energy and speed?

At which position does the diver have the most gravitational potential energy

The visible light spectrum ranges between A. radar waves and X-rays. B. ultraviolet rays and gamma rays. C. infrared rays and ultraviolet rays. D. television waves and infrared rays.

Sarah added sugar to her iced tea, but it is not dissolving very quickly. Which can Sarah do to make the sugar dissolve faster? Add more sugar. Heat the tea. Add more ice.

Positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials. True or False