Answer:
D. Output force
Explanation:
The input force is the effort used to run the machine and this results in an output force.
Answer:
5
Explanation:
If you straighten out the line, it touches the 5, which makes the length 5
Answer:
As they vibrate, they pass the energy of the disturbance to the particles next to them, which pass the energy to the particles next to them, and so on. Particles of the medium don't actually travel along with the wave. Only the energy of the wave travels through the medium
Answer:
38.7 units
Explanation:
a = 3.00 t² – 4.20 t
Integrate to find velocity as a function of time.
v = ∫ a dt
v = ∫ (3.00 t² – 4.20 t) dt
v = 1.00 t³ – 2.10 t² + C
The object starts at rest, so at t = 0, v = 0.
0 = 1.00 (0)³ – 2.10 (0)² + C
0 = C
v = 1.00 t³ – 2.10 t²
Integrate to get position as a function of time.
x = ∫ v dt
x = ∫ (1.00 t³ – 2.10 t²) dt
x = 0.250 t⁴ – 0.700 t³ + C
Find the difference in positions between t = 4.50 and t = 0.
Δx = [0.250 (4.50)⁴ – 0.700 (4.50)³ + C] – [0.250 (0)⁴ – 0.700 (0)³ + C]
Δx = 0.250 (4.50)⁴ – 0.700 (4.50)³
Δx = 38.7
The object moves 38.7 units.