3 years ago

Usually the hull of a ship contains a large volume of air. Why?

Physics

1 answer:

Anvisha [2.4K]3 years ago

6 0

The air helps the ships move faster and use less fuel to move <span />

You might be interested in

A clock moves past you at a speed of 0.9 c. How much time passes for you for each second that elapses on the moving clock?

Zigmanuir [339]

Answer:

Explanation:

Time dilation formula is

T = T₀ / √ 1-v²/c²

T₀ is time elapsed in moving reference , T time elapsed in stationary reference.

Here T₀ = 1 second

T = 1/√ 1-0.9² = 1/.4358 = 2.3 second

So 2.3 second will pass for each second on moving reference.

6 0

3 years ago

What evidence indicates that a chemical change took place when the iron and sulfur combined to form iron sulfide? A. The element

fgiga [73]

Answer:

Explanation:burn the gas

5 0

3 years ago

Read 2 more answers

Sean applies a force of 100N to move a box 5 meters. How much work did he do?

Grace [21]

Answer:

500 Joules

Explanation:

W(work)= force * distance

w = 100*5

W= 500

6 0

2 years ago

What must be the pressure difference between the two ends of a 2.6 km section of pipe, 36 cm in diameter, if it is to transport

ad-work [718]

Answer: $1.13(10)^{3} Pa$

Explanation:

This problem can be solved by the following equation:

$\Delta P=\frac{8 \eta L Q}{\pi r^{4}}$

Where:

$\Delta P$ is the pressure difference between the two ends of the pipe

$\eta=0.20 Pa.s$ is the viscosity of oil

$L=2.6 km=2600 m$ is the length of the pipe

$Q=900 \frac{cm^{3}}{s} \frac{1 m^{3}}{(100 cm)^{3}}=0.0009 \frac{m^{3}}{s}$ is the Rate of flow of the fluid

$d=36 cm=0.36 m$ is the diameter of the pipe

$r=\frac{d}{2}=0.18 m$ is the radius of the pipe

Soving for $\Delta P$ :

$\Delta P=\frac{8 (0.20 Pa.s)(2600 m)(0.0009 \frac{m^{3}}{s})}{\pi (0.18 m)^{4}}$

Finally:

$\Delta P=1135.26 Pa \approx 1.13(10)^{3} Pa$

7 0

3 years ago

Calculate the Torque that a child must apply to swing a rock of mass 0.4 kg in a radius 0.91 meters. From rest to a final linear

antoniya [11.8K]

Answer:

who you ganna throw that rock at child

Explanation:

6 0

2 years ago