Answer: Protons
Explanation: The atomic number is the number of protons that are in the nucleus of an atom. Each element on the periodic table is defined by the number of protons. In other words, the protons/atomic number determines what element it is. Protons carry a positive charge.
Q.1
Answer . Momentum = mass x velocity
Momentum/mass = velocity
5/0.8 = velocity
6.25 m/s = velocity
Q.2
Answer . F = ma => a = f/m => a = 7/3.2 => a = 2.1875m/s²
Answer:
336.78 cubic feet
Explanation:
total volume= volume of cuboid + volume of cylinder
= lxbxh + π r^2h
= 9x7x4 + 3.14x(3)^2 x3
= 252+ 84.78
= 336.78 cubic feet
the Doppler effect. (I don't know how to explain it lol)
Explanation:
The atmosphere is heated in several ways - heat from the core of the Earth, by radiation from the Sun, conduction from contact with warm land and water, convection to even out the temperature and by absorption of infrared radiation from the warm land and water. The core of the Earth is very hot.
