Higher pitched sounds have

What is the name of the element with 83 protons and 80 electrons?

Which best describes connectedness in handwriting analysis?

An element located at the intersection of period 7 and group 2

A sample of water in equilibrium with its vapor in a closed 0.6-L container has a vapor pressure of 23.8 torr at 25°C. The container's volume is increased to 2 L at constant temperature and the liquid/vapor equilibrium is reestablished.

The presence of which gas makes the planets Uranus and Neptune appear blue? a. helium b. hydrogen c. methane d. nitrogen

A measure of the energy of motion of the particles in a substance is its

What is the final velocity of the combined bumper cars A 225 kg red bumper car is moving at 3.0 m/s. It hits a stationary 180 kg blue bumper car. The red and blue bumper cars combine and hit a stationary green bumper car of mass 150 kg.

0.4-L glass of water at 20°C is to be cooled with ice to 5°C. The density of water is 1 kg/L, and the specific heat of water at room temperature is c = 4.18 kJ/kg·°C. The specific heat of ice at about 0°C is c = 2.11 kJ/kg·°C.

Regions in a sound wave where particles are farthest apart are called

What will happen to thermal condictivity of a substance if its thickness is doubled? Also give reason.