Answer:
Thus, the time for the remaining 120 miles: 8.5 - 6 = 2.5 h
Explanation:
The remaining 120 miles was (1 - 5/9 = 4/9) of the total journey.
Then, total distance: 120 ÷ 4/9 = 120 × 9/4 = 270 miles
The distance for 25 mph: 270 × 5/9 = 150 miles
The time for 25 mph: 150 ÷ 25 = 6 h
Answer:
= 10.3 m/s
Explanation:
We can solve this exercise using the conservation of the moment; the system is formed by the knife and the target, with an isolated system the moment is conserved during the collision
Knife mass m = 22.5 g and its velocity v₁₀ = 39 m / s, the mass of white is M = 300 gr and its velocity is v₂₀ = -2.15 m / s
Before the crash
p₀ = m v₁₀ + M v₂₀
After the crash
= m v₁ₐ + 0
p₀ =
m v₁₀ + M v₂₀ = m
= (m v₁₀ + M v₂₀) / m
Let's calculate
= (0.0225 39.0 + 0.300 (-2.15)) / 0.0225
= 10.3 m / s
Answer:
0.003060 cm³
Explanation:
Mass of water = m = 326.75 gram
Density of water = ρ = 1.00 g/mL = 1 g/cm³
density = mass / volume
⇒volume = density / mass
⇒volume = 1 / 326.75
⇒Volume = 0.0030604 cm³
∴ Volume held by beaker = 0.0030604 cm³
Here the combined mass of the beaker and water is given so the volume found will be of the beaker as well as the liquid. But, it can be seen that the volume is so small that subtracting the beaker mass would have negligible effect.
An ultrasound is a form of medical sonography where ultrasonic waves are pulsed into the body and the bounce back of the waves are then measured to visualize the body internals