Discuss the four macromolecules that occur in nature, including the building block unit of each macromolecule.

How are producers and consumers different?

A coffee pot in the form of a circular cylinder of radius 3 in. is being filled with water flowing at a constant rate. if the water level is rising at the rate of 0.4 in.

At a temperature of 280k, the gas in a cylinder has a volume of 20.0 liters. If the volume of the gas is decreased to 10.0 liters, what must the temperature be for the gas to remain at a constant pressure?

What does AC stand for in physics

To demonstrate an elastic collision, a teacher places a tennis ball on the floor. She wants to hit the ball so that the following conditions are satisfied. 1. After collision, the tennis ball should roll with the velocity of the ball that hit it 2.

Which of the following was NOT a main trade zone of the Indian Ocean Basin? A. Arab zone B. Indian zone C. African zone D. Chinese zone

Which statement about electric force is true? A) It is a purely attractive force. B) It is a purely repulsive force. C) It is both an attractive and a repulsive force. D) It is neither an attractive nor a repulsive force.

What happens to the air resistance on a car as it speeds up? A) decreases b) stays the same C) it changes direction of the car D) increases

A farm tractor tows a 3300-kg trailer up a 14" incline with a steady speed of 2.8 m/s. what force does the tractor exert on the trailer (ignore friction.)

How do greenhouse gases such as CO2 and N2O contribute to an increase in Earth's atmospheric temperature?