If the temperature of the steam in a pwr is 315°c (600°f), what is the maximum efficiency obtainable from the power plant?

a car is running with the velocity of 72 km/h. what will be it's velocity after 5 seconds if it's acceleration - 2 m/s²?

How is it possible to blow a balloon?

Which of the following is an effect of the magnetic force A. A positive and negative charge attract each other B. A north pole and south pole repel each other C. A north pole and south pole attract each other D.

The light bulbs in most homes are all rated for 120 V, no matter how many bulbs there are. How is the ability to use any number of same voltage bulbs affected by the way in which the bulbs are wired (series or parallel)

What's the closest to the thickness of a dime? A (millimeters) B (centimeters) C (decameters) D (meters)

An experiment is performed to obtain the value of a physical property. If the true (i. e., correct) value of the property is 50 and the measured (i. e., experimental) value is 32, the percent error of the experimental result is:

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What two factors determine how fast weathering occurs

A sound that's produced by a single wave at a constant frequency and with no overtones is called

Which of the following is ignored when determining the relative mass of atoms? protons nucleus electrons. neutrons