Explanation:
Substances become neutral at the number 7 because at this point, the acid and Base are equal and becomes neutralized
Newton's 3rd law states that every action has an equal and opposite reaction. This means that if the astronaut throws his 50kg backpack in the direction in which he is drifting with enough force, he will propel himself back towards the spaceship
It is D, the distance between each object squared. We get this from solving for the force of gravity, which is
F = G((m1*m2)/(r^2)).
Here, you can see that the masses of the two objects are divided by their total distance apart from each other (r) squared.
Correct question:
A piston has a volume change of 7 x 10^-6 m^3. Assuming atmospheric pressure is 101,325 Pa, what is the work needed to change the piston volume?
Answer:
The work needed to change the piston volume is 0.709 J
Explanation:
Given;
volume of the piston, V = 7 x 10⁻⁶ m³
atmospheric pressure, P = 101,325 Pa
The work needed to change the piston volume is calculated as follows;
W = PV
W = (7 x 10⁻⁶ m³) x (101,325 Pa)
W = 0.709 J
Therefore, the work needed to change the piston volume is 0.709 J
Assuming vertical acceleration of , the speed after x seconds of falling is