The equation total # of people in an area / (land) area in km2 (or mi2) is used to calculate

a.

growth rate

b.

population density

c.

death rate

d.

carrying capacity

The mass, hanging over the pulley, is representative of the centrifugal force acting on the three-hooked mass while it is rotating.

A rectangular tank with length 3 m, width 2 m, and height h m is full of a certain synthetic oil whose mass density is 1 3 kg/m3. If the work required to pump all of the oil to the top and out of the tank is 90 J, how tall is the tank (i. e.

A pendulum bob is made from a sphere filled with water. What would happen to the frequency of vibration of this pendulum if the sphere had a hole in it that allowed the water to leak out slowly?

A ball is tossed straight up with an initial velocity of 13.6 m/s. A) how high will it go? B) how long is the ball in the air?

When you kick a ball by a force of 26.3 newtons, what is the magnitude and direction of the force that you experience?

Which of these is not a source of the shock waves that lead to protostars?

Which kind of information is known about a person if that person's DNA is in a database? A. how old the person is B. where the person was probably born C. some diseases the person might have D. whether the person is likely to commit a crime

A science teacher ran a marathon. After the race she showed her students the silver blanket she was given to keep her warm. A group of students investigated how the colour of the blanket affected how much infrared radiation is absorbed

Students asked to measure the temperature of a reaction beaker recorded the following temperatures. 103.7°C, 108.4°C, 105.8°C, 104.6°C The actual temperature is 105.1°C. Which measurement is the most precise

Two atoms that are isotopes of one another must have a different number of what? electrons neutrons protons all particles