How do two isotopes of the same element different?

A. They have different numbers of protons.

B. They have different charges.

C. They have different atomic numbers.

D. They have different numbers of neutrons.

An electromagnetic wave in a vacuum has a wavelength of 0.032 m. What is its frequency?

You drop an object from a second floor window. Describe the speed of the object after 1 second

Which of the following is NOT an example of a transmutation? A. Uranium-238 emits an alpha particle forms thorium-234 B. Uranium-238 is bombarded with a neutron to produce uranium-239 C. Potassium-38 emits a beta particle and forms argon-38 D.

Even if it is wrong, why is a hypothesis important?

You have family members and the relationship you observed in childhood affects the quality of your current relationships?

Suppose s (t) is the position of an object moving along a line at time t is greater than or equal to 0. What is the average velocity between the times t=a and t=b? What is the instantaneous velocity at t=a?

Estimate how long it would take one person to mow a football field using an ordinary home lawn mower. suppose that the mower moves with a 1-km/h speed, has a 0.5-m width, and a field is 360 ft long and 160 ft wide. 1 m = 3.281 ft.

Badri makes the table below to review the factors that affect the electric force between objects. Which change will correct the error in Badri's table?

A star with the same mass of the sun has a newly discovered planet whose semi-major axis of 2.48 au and an eccentricity of 0.08. what is the aphelion distance of the new planet

A weather balloon is inflated to a volume of 2.2 x 10^3 L with 374 g of helium. What is the density of helium in grams per liter?