Helium-4 has how many protons

A regulation NBA basketball court is 94 feet long. If Wale runs the length of the court (from left to right) in 5 seconds, what is his velocity?

Which factors will cause an increase in the speed of a sound wave? Check all that apply. a change from liquid water to water vapor a change from water vapor to liquid water a change from liquid water to solid water a decrease in the temperature of

You are on a train traveling east at speed of 18 m/s with respect to the ground. 1) If you walk east toward the front of the train, with a speed of 1.2 m/s with respect to the train, what is your velocity with respect to the ground?

What is the difference between condensation and conduction

A force F of magnitude 2x^3 is applied to stop a particle moving with an initial velocity of v0. The particle travels from x=0 to x = D in coming to a stop after the force F is applied.

What property of sound enables us to distinguish one sound source from another?

The table below shows the right ascensions of two stars at a location. Star 1 - 4 right ascension (in Hour) Star 2 - 3 right ascension (in Hour) Which of these statements is correct about the stars?

H-2 + H-3 → He-4 + Consider the nuclear reaction that takes place in the sun. Two nuclides of hydrogen fuse to form helium. Is helium the only product of this reaction? If no, identify any additional products. A) Yes, He-4 is the only product. B) No.

Hat is a scientific theory? Make up your own scientific theory.

Which of the following is an example of a velocity? O A. 12 m/s O B. 45 km/hr south O C. 55 km/hr D. - 5 m/s2 east