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2 years ago

Pain in the squadron can be a sign of appemditicis

Physics

2 answers:

alexgriva [62]2 years ago

6 0

No it can also be a sign of bruising or a stomach infection <span />

timofeeve [1]2 years ago

4 0

Yes. Or it can be a sign of intestinal gas, or of constipation. Or it can be a sign of an internal bruise caused by sleeping too long on the same side. Or it can be the result of the new squadron commander cancelling all scheduled leaves.

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Jada is rowing a boat across a river that has a current of 5 m/s in the ˆ j direction. Leanne, standing on the shore, observes J

olchik [2.2K]

Answer: d. 8.25 m/s

Explanation:

We are given that Current= 5 m/s in j direction

Velocity= 8 m/s i + 3 m/s j

Now, we have to find Jada's speed with respect to the water.

First we find Jada's velocity with respect to water

v= (8 i + 3 j) - (5 j)

v= 8i - 2 j

To find the speed, we take the magnitude of this velocity vector we have

|v|= $\sqrt{(8)^2+(-2)^2}$

|v|= $\sqrt{68}$ = 8.246 m/s

which comes out to be around = 8.25 m/s

So option d is correct.

5 0

2 years ago

Nuclear

luda_lava [24]

Answer:

Energy

Kinetic

Energy in

this

Explanation:

ithikitsthatecauseireallydo

4 0

2 years ago

A thin-walled cylindrical pressure vessel is subjected to an internal gauge pressure, p=75 psip=75 psi. It had a wall thickness

Mekhanik [1.2K]

To solve this problem we must apply the concept related to the longitudinal effort and the effort of the hoop. The effort of the hoop is given as

$\sigma_h = \frac{Pd}{2t}$

Here,

P = Pressure

d = Diameter

t = Thickness

At the same time the longitudinal stress is given as,

$\sigma_l = \frac{Pd}{4t}$

The letters have the same meaning as before.

Then he hoop stress would be,

$\sigma_h = \frac{Pd}{2t}$

$\sigma_h = \frac{75 \times 8}{2\times 0.25}$

$\sigma_h = 1200psi$

And the longitudinal stress would be

$\sigma_l = \frac{Pd}{4t}$

$\sigma_l = \frac{75\times 8}{4\times 0.25}$

$\sigma_l = 600Psi$

The Mohr's circle is attached in a image to find the maximum shear stress, which is given as

$\tau_{max} = \frac{\sigma_h}{2}$

$\tau_{max} = \frac{1200}{2}$

$\tau_{max} = 600Psi$

Therefore the maximum shear stress in the pressure vessel when it is subjected to this pressure is 600Psi

6 0

2 years ago

tourist travels 1500 miles using two planes. The second plane averages 50 miles per hour faster than the first plane. The touris

Genrish500 [490]

Answer

given,

tourist travels = 1500 miles

second plane averages 50 miles per hour faster than the first plane.

x = y + 50

The tourist uses the slower plane for the first 500 and the faster plane for the next 1000 miles.

total flying time = 6.5 hours

$\dfrac{500}{y} + \dfrac{1000}{x} = 6.5$

$\dfrac{500}{y} + \dfrac{1000}{y + 50} = 6.5$

$\dfrac{500(50 + y)+ 1000 y}{y(y + 50)} = 6.5$

$25000 + 600 y = 6.5 y^2 + 325 y$

$6.5 y^2 - 275 y - 25000 = 0$

on solving equation

y = 86.67 mile/hr

x = 86.67 + 50

x = 136.67 mile/hr

8 0

2 years ago

Two objects, P and Q, have the same mo-<br> mentum. Q can have more kinetic energy<br> than P if it:

Art [367]

Answer:

Both the third and fifth answers are correct

8 0

2 years ago