Well, you would have to divide 150 metres by 18 seconds.
150/18 = 8 1/3 m/s OR 8.333 m/s
Answer:
I think it's 7089 because that's my answer to your questions
Answer: its pressure
Explanation: just trust me
Answer:
b. proton
Explanation:
The mass of an electron is only about 1/2000 the mass of a proton or neutron, so electrons contribute virtually nothing to the total mass of an atom. Electrons have an electric charge of −1, which is equal but opposite to the charge of a proton, which is +1.