An atom of lead has the atomic number 82 and a mass number of 207. How many neutrons does this atom of lead have?

Explain the relationship between proteins and red blood cells. Make sure you discuss how structure can affect function.

What are all the Newton's laws of motion?

Wind turbine B has blades twice as long as wind turbine A. If they are subjected to the same wind, what is the relationship between the power from turbine A (PA) and the power from turbine B (PB) ?

Bats use ultrasound in echolocation. This sound is characterized by __low frequencylow amplitudehigh frequencyhigh amplitude

f the pressure of a sample of gas is doubled at constant temperature, what happens to the volume of the gas?

What is Archimedes' Principle?

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

What elements are formed only during the supernova phase of large or extra-large madd star?

When a solid A of mass 12g is completed immensedin a measuring cylinder filled with water it diplaces the same volume of water as does solidB if mass 8 what can be deduced about the densities of solid AandB

Write the energy equivalent to 300 units of electrical energy in joules