If an atom of sodium combines with (captures) an alpha particle that has 2 protons and 2 neutrons, its new mass number will be

A)

13 amu

B)

15 amu

C)

25 amu

D)

27 amu

The chemical formula for sodium fluoride is

Calculate how much work is done if a current of 2A flows through a potential difference of 12V for 2 minutes

Describe how water molecules do not travel with the wave and the transfer of energy in water waves.

What is the atomic mass of Jupiter?

Technological advances are now making it possible to link visible-light telescopes so that they can achieve the same angular resolution as a single telescope over 300 meters in size.

A 2 kg book is pushed across a table is a force 4. Assuming no friction, what is the acceleration of the book?

When electricians use wiring for houses they use both copper and rubber. Which do you think is used as a conductor?

Suppose that 600 W of radiation in a microwave oven is absorbed by 250 g of water in a very lightweight cup. Approximately how long will it take to heat the water from 20 C to 80 C? (A) 50 s (B) 100 s (C) 150 s (D) 200 s

Calculate the velocity of a 1650kg satellite that is in a circular orbit of 4.2 x 10^6m above the surface of a planet which has a radius 3.95 x 10^5 m and the period of the orbit is 2.0 hours.

A "conventional gear" tailwheel airplane has the center of mass aft of the two main wheels and a smaller, third wheel at the tail. a "tricycle gear" airplane has the center of mass forward of the two main wheels and the third wheel near the nose.