What does M represent in the equation below?

m = M + 5 log (d/10)

A. luminosity

B. spectral class

C. absolute magnitude

D. apparent magnitude

True or False. At most times, Mars appears to move relative to the stars. The exceptions are during its periods of apparent retrograde motion, when Mars appears to move relative to the stars.

Which of the following correctly sequences the stages of engine operation? A. Intake, power, compression, exhaust B. Exhaust, compression, intake, power C. Power, intake, compression, exhaust D. Intake, compression, power, exhaust

Two cars collide head-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass? Select one: a. It was never zero.

A 2 kg laptop sits on the floor near a 4 kg jar of pennies. if the force of gravity between them is 3.42 * 10 ⁻¹⁰, how far apart are they?

A sports car accelerates from zero to 30 mph in 1.5 s. How long does it take for it to accelerate from zero to 60 mph, assuming the power of the engine to be independent of velocity and neglecting friction? A. 2 sB. 3 sC. 4.5sD. 6 sE. 9 s

A crowd in a stadium is heard by a man standing 823.2 m away. The man hears the noise 2.5 seconds after the noise occurs. How fast was the sound traveling? What's the answer?

Which is not support the theory of plate tectonics?

the acceleration of a body in free fall depends on the place or the world in which it is, true or false?

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. the square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.

A thin cylindrical shell and a solid cylinder have the same mass and radius. The two are released side by side and roll down, without slipping, from the top of an inclined plane that is 1.8 m above the ground.