A water pump pumps 3 kg of water every second from the bottom of a well to the top of the well 50 m above if the pump used 2000 W of electrical power to accomplish the task what is the efficiency of the pump

Which of the following is Not true about the noble gases

Differentiate between a cation and an anion.

You're making a food safety mistake if you A. thaw food in the fridge instead of on the counter. B. don't wash meat or poultry. C. overcook meat, poultry, seafood, or eggs. D. let food cool before putting it in the fridge not b

Which of the following is not an example of an extensive physical property? size shape color volume

A microwave oven with a power rating of 1,790 watts is used for 49 minutes. How much electrical energy is used by the microwave

Explain why a moving object can be in equilibrium

Design an investigation to compare the durability of the three different brands

The surface area of the skin of a person who is 70 inches tall and weighs w pounds can be estimated by s (w) equals=342 w superscript 0.425342w0.425 , where s is in square inches.

The train speeds passed Holly at 70 km/h north ward. This spider crawls past lukes foot in the same direction at 30 m/h. What is the velocity of the spider relative to Holly?

What is the name of a particle with no charge in an atom?