A. If an electron in a hydrogen atom has an energy of - 6.06 * 10^-20 J, which Bohr orbit is it in?

b. If an electron in a hydrogen atom has an energy of - 2.69 * 10^-20 J, which Bohr orbit is it in?

What will happen if a fluid is heated? A) The collisions between molecules will increase and the pressure will decrease. B) The collisions between molecules will increase and the pressure will increase.

Hays is standing outside on a sunny day. He is 6 ft tall and casts a 4 ft shadow. What is the distance from the top of Hays's head to the end of his shadow? Round to the nearest tenth, if necessary. 4.5 ft 5 ft 7.2 ft 10 ft

Index fossils are the remains of species that were once abundant and

Which of the following is a solution?

A Stone of mass 20kg fall from a height 5m. what is the time take to reach the ground? 2. The average kinetic energy of body (neglect energy loss and take gravity 10m/s2)

An arrow is shot upward on mars from ground level with a velocity of 60 meters per second. Its height (in meters) after t seconds is given by 2 s (t) = 60t - 1.9t^2.

Energy transformations in a bouncy house

Suppose gene A on the left chromosome is damaged and no longer functions. what form of the trait would show? Why?

What is the use of scientific knowledge and research for an action

How do evaporation and condensation relate to heat