<span>If you think about it, changing the scale to which something is measured does not affect the repeatability of the measurement. For instance, if you have a meter stick which was labeled incorrectly, that doesn't affect the fact that every measurement you take of a certain fixed distance will still be the same. Precision does not equal accuracy.</span>
Answer:
I think it is A
Explanation:
Below, what belongs to the organs of the circulatory system in humans is...
<em>a. heart - kidneys - lungs</em>
b. heart-blood vessels - blood
c. heart - kidney - liver
d. heart - lungs
Answer:
a) the mass of the second car = 28000 kg
b) the amount of kinetic energy that was lost in the collision = 
Explanation:
Given that:
mass of the train car
= 6300 kg
speed of the train car
= 12.0 m/s
mass of the second moving car
= ???
speed of the second moving car
= 2.2 m/s
After strike;
they both move with a speed
= 4.00 m/s
a)
Using the conservation of momentum :







b)
To determine the amount of kinetic energy that was lost in the collision;
we will need to find the difference between the kinetic energy before the collision and after the collision;
i.e







Now; the kinetic energy that was lost in the collision is calculated as follows:




Answer:
25 ohms
Explanation:
Hi there!
Ohm's law states that
where V is voltage, I is current and R is resistance.
Plug the given information into Ohm's law (V=50, I=2) and solve for R

Divide both sides by 2 to isolate R

Therefore, there are 25 ohms of resistance present in this circuit.
I hope this helps!