How much work does a mother do if she lifts each of her twin babies upward 1 meter? Each baby weighs

90 newtons.

How does the movement of tectonic plates cause deformation in rocks

A light bulb provides a resistance of 20 Ω to the 30 A current that runs through it. Determine the voltage of the battery in the flashlight. 0.7 V 2 V 51 V 600 V

A wire delivers 12.0 C of charge in 4.0 s. What is the current in the wire? A) 3.0 A B) 8.0 A C) 16 A D) 48 A

Doug has filled a long tray with an even layer of sand. Doug then uses two bricks to prop up one side of the tray. Next, Doug uses a watering can to pour water onto the high side of the tray. what natural process is he making

What material would make the best light bulb filament? A. A conductor surrounded by an insulator. B. A resistor, which converts some electric energy to light and thermal energy. C. An insulator, which stops the flow of electricity. D.

Tobacco use can negatively impact a person's health, family, and finances. a. True b. False

Can a body be in equilibrium if only one external force act on its? explain

When sugar is poured from the box into the sugar bowl, the rubbing of sugar grains creates a static electric charge that repels the grains, and causes sugar to go flying out in all directions. If each of two sugar grains acquires a charge of 1.

You rub a clear plastic pen with wool, and observe that a strip of invisible tape is attacted to the pen. Assuming that the pen has a negative charge, which of the following could be true? Select all that apply.: A.

Magnet a has twice the magnetic field strength of magnet b and at a certain distance pulls on magnet b with a force of 100 n. the amount of force that magnet a exerts on magnet b is