What layer of the atmosphere is made mostly of hydrogen and helium?

consider a 38 degree F object placed in 68 F room write a differential equation for T thetemperature of the object at time t using k>0 for the constant of proportionality and write your equation in terms of T k and t

6. If Mr. Q is drinking four (12-oz) cans of beer each day in addition to his normal food intake, how much weight will he gain in 6 months (180 days) ? Assume that 3,500 kcalories consumed in excess leads to one lb of fat gain.

In a shuffleboard game, the puck slides a total of 12 m on a horizontal surface before coming to rest. if the coefficient of kinetic friction between the puck and board is 0.10, what was the initial speed of the puck?

Wilam made a chart to summarize the results of experiments with the photoelectric effect. Which best describes how to correct Wilam's error?

At a speed of 60 mph, how far does your car travel in 3 seconds

Most volcanoes are located at A. transform boundaries. B. midocean ridges. C. convergent and divergent boundaries. D. hot spots.

What factors affect the speed of a wave?

What direction does air resistance act on an object that is falling straight down

How are the relationships of elements in a group different from the relationships of elements in a period?

Children in a tree house lift a small dog in a basket 4.00 m up to their house. If it takes 187 J of work to do this, what is the combined mass of the dog and basket?