When the photosphere is covered, the corona, chromospheres, and prominences are visible.

true or false?

Determine the maximum r-value of the polar equation r =3+3 cos 0

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car