I mean if he flies 5g that means that's his average speed too
Answer:
238.75⁰C .
Explanation:
coefficient of linear thermal expansion of aluminum and steel is 23 x 10⁻⁶ K⁻¹ and 12 x 10⁻⁶ K⁻¹ respectively .
Rise in temperature be Δ t .
Formula for linear expansion due to heat is as follows
l = l₀ ( 1 + α x Δt )
l is expanded length , l₀ is initial length , α is coefficient of linear expansion and Δt is increase in temperature .
For aluminum
l = 2.5 ( 1 + 23 x 10⁻⁶ Δt )
For steel
l = 2.506 ( 1 + 12 x 10⁻⁶ Δt )
Given ,
2.5 ( 1 + 23 x 10⁻⁶ Δt ) = 2.506 ( 1 + 12 x 10⁻⁶ Δt )
1 + 23 x 10⁻⁶ Δt = 1.0024 ( 1 + 12 x 10⁻⁶ Δt )
1 + 23 x 10⁻⁶ Δt = 1.0024 + 12.0288 x 10⁻⁶ Δt
10.9712 x 10⁻⁶ Δt = .0024
Δt = 218.75
Initial temperature = 20⁰C
final temperature = 218.75 + 20 = 238.75⁰C .
Explanation: (Two liquids can have a very close boiling point) So it will be salt water. I think :C
Answer:
somewhere between 32 m/s and 2 m/s
Explanation:
If the acceleration is applied in the same direction as the original motion, the motion increases.
17 + 3(5) = 32 m/s
If the acceleration is applied in the opposite direction as the original motion, the motion decreases.
17 - 3(5) = 2 m/s
If the acceleration is applied at an angle to the original motion, then we need to vector add original 17 m/s and the acceleration caused 15 m/s to find the final result. We would need the angle in ANY of these cases as velocity is a vector.
Answer:
14009. 72 kgms^-1
Explanation:
Momentum is the product of an objects mass and velocity