Alkaline earth metals - 2 valence electrons

If the mass of the spacecraft were doubled, how much would the force of gravity would change?

A luggage handler pulls a 20.0 kg suitcase up a ramp inclined at 33.0 ∘ above the horizontal by a force F⃗ of magnitude 161 N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is μk = 0.300.

A ball is thrown straight up into the air. At each of the following instants, is the magnitude of the ball's acceleration greater than g, equal to g, less than g, or zero? Air resistance may be neglected.

Electric eels and electric fish generate large potential differences that are used to stun enemies and prey. These potentials are produced by cells that each can generate 0.10 V. We can reasonably model such cells as charged capacitors.

Which wave requires a medium for trasmission? a. Light b. Radio c. Infrared d. Sound

All but two gaps within a set of Venetian blinds have been blocked off to create a double-slit system. These gaps are separated by a distance of 5.0 cm. Infrared radiation is then passed through the two gaps in the blinds.

What is electrical conductivity an example of?

What are the characteristics of the big bang theory

A 3.0 kg mass moving to the right at 1.4 m/s collides in a perfectly inelastic collision with a 2.0 kg mass initially at rest. what will the velocity of the combined mass be after the collision? show your work.

How does Earth get energy from the sun?