For convection to occur,

A. dark objects are required to absorb energy.

B. substances must be in contact with each other.

C. particles must be able to flow within a substance.

D. heat must transfer from an area of less energy to more energy.

7. Kepler's Third Law of Orbital Motion states that you can approximate the period P (in Earth years) it takes a planet to complete one orbit of the sun using the function, where d is the distance (in astronomical units, AU) from the planet to the

Describe the function of a reflex arc.

You should be able to use the speed of our fastest interplanetary spacecraft, and calculate the time in Days, it would take to travel to the planet Mars. For our purposes, this means you would need to travel 58 Million Kilometers.

The cryosphere is composed of? All the rocks and minerals on earth All of the minerals on earth All of the frozen water on earth All of the liquid water on earth

A 1800 kg car is parked at the top of a hill 4.7 m high. What is the gravitational potential energy of the car?

A spring tide can occur at what day and month?

For a given launch velocity, at which launch angle does the projectile undergo the maximum horizontal displacement

Electric force is blank proportional to the amount of charge and blank proportional to the square of the distance between the charges

What happens in the gray zone between solid and liquid?

Which statement describes Newton's law of universal gravitation? Mass has hittle effect on gravity between objects. Gravity pushes objects away from Earth's center, Gravity does not act between Earth and the moon.