Answer:
14 m/s^2
Explanation:
We have to use the equation F=ma because the question is a Newton's second law question.
First, list known values
F (force) = 70 N
m (mass) = 5 kg
a (acceleration) = ? (we have to solve for this)
Second, plug in known values into equation.
F=ma
70=5a
Third, solve. To solve this all you have to do is divide both sides by 5
70/5=5/5a
Fourth, your answer will be 14 meters per second squared (m/s^2)
I hope this answer helps and have a great day!
Answer: 2 protons.
Explanation:
1) The number of protons is indicated by the atomic number (Z)
2) Atomic number of uranium-238 and any uranium isotope is the same: 92. You find it in a periodic table.
So, the number of protons of uranium-238 is 92.
3) Atomic number of thorium-234 (and any thorium isotope) is 90, that is why it is told that it has 90 protons.
4) Therefore, the difference on the number of protons in each nucleus of uranium-238 and thorium-234 is 92 - 90 = 2.
Answer:
Bulb
Explanation:
Bulb and fluorescent tubes convert electrical energy into light energy. The best alternative in this case will be a bulb. The switch controls flow of current hence used to put the circuit on and off but doesn't do any conversion.
Answer:
the seed of the sound in the air is 343.3 m/s
Explanation:
The computation of the speed of the sound in the air is shown below:
As we know that
Speed = Distance divided by Time
So, here speed be 515m
And, the time is 1.50 second
So, the speed of the sound is
= 515m divided by 1.50 seconds
= 343.3 m/s
hence, the speed of the sound in the air is 343.3 m/s