A dolphin makes a noise underwater that is too high pitched for humans to hear. What type of wave is this?

What is the coefficient for the oxygen molecule in the chemical equation below? 2hgo → 2hg + ? o2?

How many atoms is 87.4 grams potassium?

Write if each is a balanced or unbalanced force: -2 people pulling opposite directions on a rope w/the same amount of force -2 women lifting a box into the back of a truck -a hook sitting high upon a bookshelf -an earthquake releasing energy at a

What is the effect on the outlet temperatures in both the hot and cold streams, when the surface area (length and diameter) is reduced? a - The outlet temperature of the cold stream decreases and the outlet temperature of the hot stream increases.

Carbon-14 is a radioactive isotope which decays with a half-life of 5730 years. what is the first-order rate constant for its decay, in units of years-1?

The uranium used for nuclear fuel exists in nature in several minerals. Calculate how many moles of uranium are in 8.00 moles of the following: 1. carnotite, K2 (UO2) 2 (VO4) 2 • 3H2O 2. uranophane, CaU2Si2O11 • 7H2O 3.

What is the chemical formula of a compound that is composed of the ions Ca2 + and br-

What element is likely to form an ionic compound with chlorine?

Will a parachute slow a skydiver more at a very high altitude or a lower altitude?

Carbon monoxide is: Only found in large cities An odorless, colorless, toxic gas Healthy to breath in A danger when driving on the open highway