How does the ozone layer affect life on Earth?

a. causes respiratory illness

b. increases photosynthesis in plants

c. causes damage to living tissue

d. filters out harmful ultraviolet radiation

How many protons are in an element with an atomic number of 8 and a mass number of 18?

What does the term "series" mean

What is the speed of a transverse wave in a rope of length 2.00 m and mass 60.0 g under a tension of 500 n?

What is weight vs mass

If a person consumes an extra 500 calories per day, how long would it take before he or she gained one pound of fat? A. 10 days B. 14 days C. 7 days D. 5 days Mark for review (Will be highlighted on the review page)

A wire carries a steady current of 2.20 A. A straight section of the wire is 0.750 m long and lies along the y axis within a uniform magnetic field, vector B = 1.70 k T.

All parts of the electromagnetic spectrum share travel at the same speed through empty space. True False

What is the mechanical advantage of the frictionless plane shown below? Inclined plane A. 0.64 B. 1.31 C. 1.4 D. 1.56

What does ice become when it absorbs enough heat energy. C. Frost. D. Liquid

Steam enters an adiabatic turbine steadily at 3 mpa and 400°c and leaves at 50 kpa and 100°c. if the power output of the turbine is 2 mw, determine (a) the isentropic efficiency of the turbine and (b) the mass flow rate of the steam flowing through