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3 years ago

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3. Which of the following is true about astronauts taking out the TRASH?

1 answer:

scoray [572]3 years ago

6 0

Answer:

C

Explanation:

When trash accumulates, astronauts manually squeeze it into trash bags, temporarily storing almost two metric tons of it for relatively short durations, and then send it away in a departing commercial supply vehicle, which either returns it to Earth or incinerates it during reentry through the atmosphere.

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How might mutations introduce variation into population

Alex787 [66]

Answer: See explanation for example

Explanation:

Mutations are changes in DNA. They change the way a stretch of gene is produced or reacts. Therefore, if mutations occur rapidly, it could introduce variations of actually anything!

5 0

4 years ago

A 47.5-turn circular coil of radius 5.25 cm can be oriented in any direction in a uniform magnetic field having a magnitude of 0

Free_Kalibri [48]

Answer:

Torque, $5.91\times 10^{-3}\ N-m$

Explanation:

Given that,

The number of turns in the coil, N = 47.5

Radius of the coil, r = 5.25 cm

Uniform magnetic field, B = 0.535 T

Current in the coil, I = 26.9 mA

The magnitude of the maximum possible torque exerted on the coil isg given by :

$\tau=NIAB\\\\\tau=47.5\times 26.9\times 10^{-3}\times \pi (5.25\times 10^{-2})^2\times 0.535 \\\\\tau=0.00591\ N-m\\\\\tau=5.91\times 10^{-3}\ N-m$

So, the magnitude of the maximum possible torque exerted on the coil is $5.91\times 10^{-3}\ N-m$ .

3 0

3 years ago

Answer ASAP and only if you know its correct

Pachacha [2.7K]

Answer:

scientists see emission spectra 'shifted' towards the red end of the electromagnetic spectrum—

Explanation:

hoped this helped

6 0

2 years ago

Read 2 more answers

A 0.10 kg meter stick is held perpendicular to a vertical wall by a 2.5 mm string going from the wall to the far end of the stic

il63 [147K]

Explanation:

a)

Sum of moments = 0 (Equilibrium)

T . cos (Q)*L = m*g*L/2

$cos Q = \frac{\sqrt{(2.5^2 - L^2) } }{2.5}$

$T*\frac{\sqrt{(2.5^2 - L^2) } }{2.5} * L = 0.1 *9.81*L/2$

$T = \frac{2.4525}{\sqrt{(2.5)^2 - L^2} }$

b) If the String is shorter the Q increases; hence, Cos Q decreases which in turn increases Tension in the string due to inverse relationship!

c)

$T = \frac{1.962}{\sqrt{(2)^2 - L^2} }$

6 0

3 years ago

A projectile is fired with an initial speed of 100 m/s and angle of elevation 30 degrees. The projectile eventually hits the gro

zaharov [31]

Answer:

Explanation:

Given

launch velocity $u=100\ m/s$

Launch angle $\theta =30^{\circ}$

Range of Projectile $R=\frac{u^2\sin 2\theta }{g}$

$R=\frac{100^2\times \sin (2\times30)}{9.8}$

$R=883.699\approx 883.7$

Horizontal velocity remain same and only vertical velocity changes.

Initially vertical velocity is in upward direction but as soon as it reaches the ground its direction change but magnitude remain same.

$u_y=100\sin (30)=50\ m/s$

$u_x=100\cos (30)=86.60\ m/s$

$u_{net}=\sqrt{(50)^2+(86.60)^2}$

$u_{net}=99.99\approx 100\ m/s$

7 0

3 years ago