The coefficient of linear expansion, given that the length of the pipe increased by 1.5 cm is 1.67×10¯⁵ /°F
<h3>How to determine the coefficient of linear expansion</h3>
From the question given above, the following data were obtained
- Original diameter (L₁) = 10 m
- Change in length (∆L) = 1.5 cm = 1.5 / 100 = 0.015 m
- Change in temperature (∆T) = 90 °F
- Coefficient of linear expansion (α) =?
The coefficient of linear expansion can be obtained as illustrated below:
α = ∆L / L₁∆T
α = 0.015 / (10 × 90)
α = 0.015 / 900
α = 1.67×10¯⁵ /°F
Thus, we can conclude that the coefficient of linear expansion is 1.67×10¯⁵ /°F
Learn more about coefficient of linear expansion:
brainly.com/question/28293570
#SPJ1
Idkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidkidk
Answer:
4.2 m/s
Explanation:
Momentum is conserved.
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
(35 g) (9 m/s) + (75 g) (-7 m/s) = (35 g) (-15 m/s) + (75 g) v
315 g m/s − 525 g m/s = -525 g m/s + (75 g) v
315 g m/s = (75 g) v
v = 4.2 m/s
R = ρ L/A. R= resistance, ρ= resistivity, L= length of the conductor. A = area of the conductor. Resistance is directly proportional to the length of the conductor. So if length of the conductor is decreased, resistance will also decrease. Hence A is the correct option
1. Improves health
2. Improves fitness
3. Burns calories
4. Requires minimal equipment
5. Convenient
6. Caters to all levels
