A solution of an acid in water has apH of 4, which is slightly acidic. Is this a solution of a weak acid?

What length of a 22 gauge american wire gauge copper wire is needed to make a resistance of 500 ohm?

Short wavelengths of visible light interact more frequently with the atoms in glass than do longer wavelengths. Does this interaction time tend to speed up or slow down the average speed of light in glass?

You're carrying a 3.4-m-long, 21 kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip.

A spring that is stretched 2.6 cm stores a potential energy of 0.053 j. What is the spring constant of this spring?

3. After studying about recycling, members of John's biology class investigated the effects of various recycled products on plant growth. John's lab group compared the effect of different aged grass compost on bean plants.

How are molecules in a neutral state different from ions?

What is a hypothesis for why mitochondrion has separate dna from the nuclease?

An airplane flies 1350km in 2 1/4 hours. What is its average speed in kilometers per hour?

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?