No because an atom consists of <u>two</u> main parts <em>and</em> <u>three</u> subatomic particles - protons, neutrons, electrons. Each one is smaller than an atom, therefore they are subatomic particles. An atom only requires protons and electrons to be an atom - e.g. Hydrogen has 1 proton and 1 electron. Neutrons do not affect the overall charge of the atom, and only increase the atomic mass.
Answer:
The force required to push to stop the car is 288.67 N
Explanation:
Given that
Mass of the car, m = 1000 kg
Initial speed of the car, u = 1 m/s
The car and push on the hood at an angle of 30° below horizontal, ![\theta=30^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%3D30%5E%7B%5Ccirc%7D)
Distance, d = 2 m
Let F is the force must you push to stop the car.
According work energy theorem theorem, the work done is equal to the change in kinetic energy as :
![W=\dfrac{1}{2}m(v^2-u^2)F\times d=\dfrac{1}{2}m(v^2-u^2)](https://tex.z-dn.net/?f=W%3D%5Cdfrac%7B1%7D%7B2%7Dm%28v%5E2-u%5E2%29F%5Ctimes%20d%3D%5Cdfrac%7B1%7D%7B2%7Dm%28v%5E2-u%5E2%29)
![v = 0](https://tex.z-dn.net/?f=v%20%3D%200)
![Fd\ cos\theta=\dfrac{1}{2}m(u^2) F=\dfrac{\dfrac{1}{2}m(u^2)}{d\ cos\theta}F=\dfrac{\dfrac{1}{2}\times 1000\times (1)^2}{2\ cos(30)}F = -288.67 N](https://tex.z-dn.net/?f=Fd%5C%20cos%5Ctheta%3D%5Cdfrac%7B1%7D%7B2%7Dm%28u%5E2%29%20%20%20%20%20%20F%3D%5Cdfrac%7B%5Cdfrac%7B1%7D%7B2%7Dm%28u%5E2%29%7D%7Bd%5C%20cos%5Ctheta%7DF%3D%5Cdfrac%7B%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%201000%5Ctimes%20%281%29%5E2%7D%7B2%5C%20cos%2830%29%7DF%20%3D%20-288.67%20N)
The force required to push to stop the car is 288.67 N
Answer:
Radioactive Dating of Fossils or Movement of Fossils
Explanation:
Its definitely one of those.
singer when you went to leaving
Name: Lead
Symbol: Pb
Atomic Number: 82
Atomic Mass: 207.2 amu
Melting Point: 327.5 °C (600.65 K, 621.5 °F)
Boiling Point: 1740.0 °C (2013.15 K, 3164.0 °F)
Number of Protons/Electrons: 82
Number of Neutrons: 125
Classification: Other Metals
Crystal Structure: Cubic
Density @ 293 K: 11.34 g/cm3
Color: bluish