Speed is the rate of distance traveled per unit of time without regards to direction.
<u>Explanation</u>:
Speed is the pace of separation traveled per unit of time, regardless of direction.
Speed is straightforwardly relative to separate when time is consistent and conversely corresponding to a time when separation is steady. Multiplying one's speed would mean multiplying one's separation went in a given measure of time. Multiplying one's speed would likewise mean splitting the time required to travel a given separation.
Answer:
0.64 J/g°C
Explanation:
Using the formula;
Q = m × c × ∆T
Where;
Q = amount of heat
m = mass (g)
c = specific heat capacity
∆T = change in temperature (°C)
In this case:
Q (water) = - Q (metal)
mc∆T (water) = - mc∆T (metal)
According to the information in this question,
For water; m = 100g, c = 4.18J/g°C, ∆T = (25°C - 20°C)
For metal; m = 50g, c =?, ∆T = (25°C - 90°C)
mc∆T (water) = - mc∆T (metal)
100 × 4.18 × (25°C - 20°C) = - {50 × c × (25°C - 90°C)}
100 × 4.18 × 5 = - {50 × c × -65}
2090 = -{-3250c}
2090 = 3250c
c = 2090/3250
c = 0.643
c = 0.64J/g°C
Answer:
P = 0.6814 MPa
Explanation:
For this exercise we must use the Betuliano relation
P₁ + ½ ρ v₁² + ρ g y₁ = P₂ + ½ rho v₂² + rho g y₂
where we use the subscript 1 for the first pipe and the subscript 2 for the second pipe
indicate that the two pipes are at the same level therefore
y₁ = y₂
P₂ = P₁ + ½ ro (v₁² - v₂²)
let's calculate
P₂ = 13,785 10⁵ + ½ 997 (41,221² - 55,654²)
P₂ = (13.785 - 6.97) 105
P₂ = 6.814 10⁵ Pa
let's reduce to Mpa
P₂ = 6.814 10⁵ Pa (1 MPa / 10⁶ Pa)
P₂ = 6.814 10-1 MPa
P = 0.6814 MPa
Answer:
Energy
A medium
Explanation:
A wave is a disturbance that travels through a medium, transferring energy from one point to another in the medium.
Mechanical waves are waves that require a medium for their propagation.