Efficiency = Mechanical advantage / Velocity Ratio:
0.60 = M.A./6
MA = 0.6 * 6 = 3.6
The mechanical advantage is 3.6
Mechanical advantage = Force out / Force in
3.6 = 3000/ Force in
Force in = 3000/3.6
Force in = 833.33 N
Answer: 833.33N
Answer:
26.4 m/s
Explanation:
4 g = 0.004 kg
By the law of momentum conservation, the momentum before and after the impact must be the same
So the speed of the block after the impact is 26.4 m/s
Answer:
False
Explanation:
Density is a physical property of matter.
Answer:
The method used to find atomic mass depends on whether you're looking at a single atom, a natural sample, or a sample containing a known ratio of isotopes:
Look Up Atomic Mass on the Periodic Table If it's your first encounter with chemistry, your instructor will want you...
Sum of Protons and Neutrons for a Single Atom To calculate the atomic mass of a single
