The atomic number of krypton (kr) is 36, and its mass number is 84. how many neutrons does it have? 18 36 48 72

A steel block has a volume of 0.08m³ and a density of 7,840kg/m³. What is the force of gravity acting on the block (the weight) in water?

How do you think altering factors like wavelength and frequency affect they way we see and hear?

A closed box with square base is to be built to house an ant colony. the bottom of the box and all four sides are to be made of material costing $2/ft2, and the top is to be constructed of glass costing $4/ft2.

8 2/5 - 4 5/6 eight and two fiveths subtracted by four and five sixth

How is continental lithosphere different from oceanic lithosphere

Which statement is true about the atomic mass?

Velocity is: а - speed and direction. b - distance divided by time. c - always the same as speed. distance multiplied by time. d - distance multiplied by time

The gauge pressure in each of the four tires of an automobile is 230 kpa. if each tire has a "footprint" of 180 cm2 (area touching the ground), determine the mass of the car.

A bus travels 20 KM and 30 minutes what is average speed of the bus

What is the total number of atoms in the following formula? CaBr2