A helium balloon has a pressure of 40 psi at 20 degrees Celsius. What will the pressure be at 40 degrees Celsius?

What is the difference in momentum when the masses are equal

A wave is produced in a rope. The wave has a speed of 33 m/s and a frequency of 22 Hz. What wavelength is produced?. A. 0.67 m B. 0.75 m C. 1.5 m D. 3.0 m

A rocket sled is tested at 5g

As a system expands, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.500 atm. The final volume of the system is 58.0 L.

How is the gravitational potential energy stored in an object converted into kinetic energy A by throwing to object upward B by putting the object on the ground C by moving the object to one side or D by letting the object fall

Why should scientists write reports and give oral presentations of the steps and results of their in investigations?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.

What methods can be used to break down substances into elements

8. A gas is contained in a horizontal piston-cylinder apparatus at a pressure of 350 kPa and a volume of 0.02 m3. Determine the work done by the piston on the gas if the cylinder volume is increased to 0.15 m3 through heating.