The dimmer star in a two-star system passes in front of the brighter star. Which phenomenon does this describe?

-nebular cluster

-global cluster

-wobbling binary

-eclipsing binary

A toddler peddling a tricycle applies a net force of 150N to the pedals. We will assume that 100% of this force is transferred to foward motion. The grandmother of the toddler notice that the toddler on the tricycle is accelerating at a rate of 5m/s.

What activity is considered a proper laboratory technique chem?

Which solutions most concentrated? 1) 0.1 mole of solute dissolved in 400 ml of solvent 2) 0.2 mole of solute dissolved in 300 ml of solvent 3) 0.3 mole of solute dissolved in 200 ml of solvent 4) 0.4 mole of solute dissolved in 100 ml of solvent

Isotopes are atoms that contain the same number of protons but a different number of neutrons in their nuclei. based on this information, which statement about isotopes is true? a. isotopes are atoms of the same element. b.

Why is corn considered a material resource and an energy resource?

The temperature of 15 grams of water increases by 3.0 degress. how much heat was absorbed by water?

What are the four types of stoichiometry problems?

100 ml oxygen at 1.75 atm and 200ml nitrogen at 0.6 atm are passed to a 500 ml vessel. Calculate the total pressure of the mixture in the vessel at same temperature

Which is the best metal to use in an alloy to increase its electrical conductivity

Ice does not need to melt into liquid water before it can return to the atmosphere as water vapor. a. True b. False