Answer:
Explanation:
We shall apply Bernoulli's formula to solve the problem . It is as follows .
P + ρ gh + 1/2 ρ v² = constant .
P₁ + ρ gh + 1/2 ρ v₁² = P₂ + ρ gh + 1/2 ρ v₂²
P₁ + 1/2 ρ v₁² = P₂ + 1/2 ρ v₂²
P₁ - P₂ = 1/2 ρ (v₂² - v₁² )
= .5 x 1,1 ( 30² - 20² )
= 275 N / m²
velocity over moon roof is high , pressure will be lower there by 275 N / m²
Given pressure difference already existing = 90500 - 90000 = 500 N / m²
Additional pressure difference due to velocity difference = 275 N / m²
Total pressure difference = 275 + 500 = 775 N / m²
Area of roof = .5 m²
Total force acting upwards on the roof
= .5 x 775 N
= 387.5 N .
Answer:
I know for sure that it's either A or B have a great day sorry I don't know which one completely
Answer:
D
Explanation:
It is because the distance from home to school is 12miles and the bus to school and back is 12miles which is 24miles.
Answer:
The dog has more momentum than the pony.
Explanation:
To solve this problem, we must remember the formula for calculating momentum, which is given below:
momentum = p = m*v
where m represents the mass of the object and v represents the velocity of the object
Using this knowledge, let's calculate the momentum for the dog and the pony.
Dog: p = m*v = (2kg)*(41 m/s) = 82 kg*m/s
Pony: p = m*v = (75kg)*(1 m/s) = 75 kg*m/s
Since 82 > 75, we can conclude that the dog has more momentum.
Hope this helps!
Hello, let me see how I can help you!
So the standard metric unit is the meter.
Adding prefixes change the value of the meter
The most common are the
(Kilo)meter-1000 meters
(Centi)meter-1/100 of a meter
(Milli)meter-1/1000 of a meter
So 65 Kilometers is 65,000 meters.
65,000 meters is 6,500,000 centimeters.
The fastest way to do this equation would be to multiply the number by 100,000!
Tell me if I was any help!