When scientists observed the light from stars and galaxies, they noticed that their color shifted toward the end of the visible color spectrum.

A. violet

B. Green

C. Red

D. Blue

In a young's double-slit experiment, the angle that locates the second dark fringe on either side of the central bright fringe is 6.5 degrees. find the ratio d/λ of the slit separation d to the wavelength λ of the light.

A certain rifle bullet has a mass of 6.45 g. Calculate the de Broglie wavelength of the bullet traveling at 1313 miles per hour.

What is physical fitness?

Which releases more energy, 100 grams of 100c water cooling to 50c, or 100 grams of iron at 100c cooling to 50c

What BAC is acceptable for teen drivers?

Students asked to measure the temperature of a reaction beaker recorded the following temperatures. 103.7°C, 108.4°C, 105.8°C, 104.6°C The actual temperature is 105.1°C. Which measurement is the most precise

Two atoms that are isotopes of one another must have a different number of what? electrons neutrons protons all particles

How can you use the newton's second law to find force?

Define and describe a mixture using examples.

Which have a positive charge? neutrons atoms protons electrons