A block initially at rest is allowed to slide down a frictionless ramp and attains a speed v at the bottom. to achieve a speed of 1.8v at the bottom, how many times as high must a new ramp be?

Write the formulas of three important acids and three important bases. Describe their uses.

A ball is thrown straight up it passes a 2.00 m high window 7.5 meters off the ground on its path up it takes 1.3 s to go past the window. what was the balls initial velocity?

Under what condition is it possible for liquid water to have a higher temperature than water vapor when both are in the same container?

A white rooster mates with a black hen. The offspring is gray in color. What is this phenomenon called? codominance coinheritance incomplete dominance single gene dominant/recessive trait

A stone falls 36.0m (120ft). How long did it take the stone to hit the ground? How fast was the stone moving on impact ft/sec? m/sec?

A 1180kg car is moving at a speed of 85.5 km/h. Find the force needed to bring the car to rest in a distance of 300m

Which best states the author's argument in catching sun rays? no power source is clean, free, and renewable. it costs too much to use solar energy for power. the use of solar energy can cause blackouts in big cities.

A possible means of space flight is to place a perfectly reflectingaluminized sheet into orbit around the Earth and then use the lightfrom the Sun to push this "solar sail." Suppose a sail of area5.

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, then

What would happen if an electron was added to an atom