Scientists discovered that stars in the universe are mostly composed of which elements? a. hydrogen and helium

b. hydrogen and oxygen

c. oxygen and nitrogen

d. helium and nitrogen

Zero gauge wire has a diameter of 0.32in and can carry a sustained current of 150A safely. What is the magnetic field a distance 5cm from the center of a long straight segment of zero gauge wire carrying a current of 150A?

DNA is coiled into chromosomes in a cell's

A truck is traveling with 50,000 J of kinetic energy. It hits the breaks and the truck now has 20,000 J of kinetic energy.

In the simulation above, as the projectile travels downward, how does the vertical velocity change? A) Vertical velocity is zero. B) Vertical velocity decreases. C) Vertical velocity remains the same. D) Vertical velocity increases.

A goldfish is capable of seeing which electromagnetic wave? A. X-rays B. Gamma rays C. Microwaves D. Both infrared and ultraviolet light

Model rocket A is launched at an angle of 70° above the x axis, with an initial velocity of 40 m/s. An identical rocket B is launched under the same conditions at an angle of 90° above the x axis, also with an initial velocity of 40 m/s.

Why is it that when you throw a Frisbee, it flies better when it is normally thrown and not upside down?

Four blocks of weights are required using which any body whose weight is between 1kg and 40 kg can be weighed. Find the four weights

Use the graph to determine the instantaneous speed at 2 seconds. m/s What is the average speed over the entire trip? m/s

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