What would be the final size of a balloon, at - 18*C, if the initial volume is 2.0 L and the initial temperature is 20*C?

Which statement best describes longitudinal waves? A) Particles of the wave medium move perpendicular to the direction of propagation of the wave. B) Longitudinal waves do not require a material medium for propagation.

A steel casting weighing 2 kg has an initial temperature of 500°c; 25 kg of water initially at 25°c is contained in a perfectly insulated steel tank weighing 5 kg. the casting is immersed in the water and the system is allowed to come to equilibrium.

An ideal gas at 0∘C consists of 1.0*1023 atoms. 20 J of thermal energy are added to the gas. Part A What is the new temperature in ∘C?

Convection in the atmosphere is the process whereby air masses rise and fall, distributing heat and moisture over the planet. a. True b. False

Which has more internal energy, a pot of boiling water or an iceberg?

Which statement best describes the movement of particles when a wave travels through a medium? The particles are

What is the acceleration of all objects due to gravity? What does this mean?

Which is the correct formula for cellular respiration? a. 6 CO2 + 6 H2O + light energy → C6H12O6 + 6 O2 b. CO2 + H2O → C6H12O6 + O2 c. C6H12O6 + O2 → CO2 + H2O d. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + ATP energy

A tree is standing in the middle of a meadow. As you watch, the wind begins to blow and the tree bends. Which statement best explains how you could tell that a net force was acting on the tree? OA) The tree had momentum.

Consider two cars, a 700kg Porsche and a 600kg Honda Civic. The Porsche is speeding along at 40 m/s (mph) and the Civic is going half the speed at 20 m/s.