Answer:
The voltage across the bulb measures 3.0 V,
Explanation:
The bulb's voltage aligns with the voltage of the batteries, as they are the only power source for the bulb. Therefore, the voltage across the batteries is 3.0 V.
La force agissant pendant 9 s et la décélération pendant 12 - 9 = 3 s.
Distance totale parcourue = 990 m
vitesse initiale u = 0
Distance parcourue pendant l'accélération
s₁ = 1/2 a 9² où a est l'accélération
= 40.5 a
vitesse finale après 9 s
v = at = 9a
pendant la décélération
v² = u² - 5 x s₂
0 = (9a)² - 5 s₂
s₂ = 16.2 a²
Distance parcourue pendant la décélération = 16.2 a²
s₁ + s₂ = 990
40.5 a + 16.2 a² = 990
16.2 a² + 40.5 a - 990 = 0
a = 6.5
This is due to the fact that below 4°c, water behaves differently than other substances and decreases in density as its temperature drops further.
Answer:
The flow rate of water is (300000kg/s) = (300000l/s)
Explanation:
To compute the volume of moving fluid per second in the channel, we consider the channel's section, the water depth, and the fluid velocity:
Volume flow rate = 15m × 8m × (2.5m/s) = 300 m³/s
To find the mass or liters of water flowing per second, multiply the volume of circulating fluid by the water's density:
Flow rate of water = (300m³/s) × (1000kg/m³) = (300000kg/s) = (300000l/s)
It is important to note that 1kg of water is approximately equivalent to 1 liter.
