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Oksi-84 [34.3K]

2 years ago

9

Describe an object that emits radiation in Astronomy

1 answer:

DochEvi [55]2 years ago

4 0

Answer:

the sun

Explanation:

the sun emits all types of electromagnetic radiation but a vast majority of it comes in the for of in the for of visible light ultraviolet rays and infrarays

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What is the effects on peoples when there is no hospital in the community

Kryger [21]

Answer: It is an insidious, self-perpetuating problem that affects generations of families. ... Society can intervene to increase host resistance and mitigate poverty's negative ... prevention, quality, potentially avoidable hospital use, and health outcomes. ... These findings point out that low-income status does not have to determine poor

Explanation:

7 0

2 years ago

At time t=0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant angular acceleration of 25.0 rad/s^2 until

Zolol [24]

Angle turned by the wheel is given by the kinematics as

$\theta = \omega t + \frac{1}{2}\alpha t^2$

now here we know that

$\omega = 26 rad/s$

$\alpha = 25 rad/s^2$

t = 2.50 seconds

$\theta = 26(2.50) + \frac{1}{2}(25)(2.50)^2$

$\theta = 143.1 rad$

So here total angle that the wheel turn is given as

$\theta = 143.1 + 440 = 583.1 rad$

Speed of the wheel after 2.5 s

$\omega = \omega_0 + \alpha t$

$\omega = 26 + (25)(2.5)$

$\omega = 88.5 rad/s$

now angular deceleration is given as

$\alpha_1 = \frac{\omega^2 - \omega_0^2}{2\theta}$

$\alpha_1 = \frac{0 - 88.5^2}{2(440)}$

$\alpha_1 = -8.9 rad/s^2$

time taken to stop

$t = \frac{\omega - \omega_0}{\alpha}$

$t = \frac{0 - 88.5}{-8.9} = 9.94 s$

now total time is given as

$T = 2.50 + 9.94 = 12.44 s$

5 0

2 years ago

Read 2 more answers

An astronaut is weighed before he sets off to the Moon. He has a mass of 80 kg.

denpristay [2]

<em>formula</em>

<em>weight</em><em>=</em><em> </em><em>mass×</em><em>g</em><em>r</em><em>a</em><em>v</em><em>i</em><em>t</em><em>y</em>

<em>weight</em><em>=</em><em>8</em><em>0</em><em>×</em><em>1</em><em>0</em><em>=</em><em>8</em><em>0</em><em>0</em>

8 0

1 year ago

We sing better in the shower due to standing waves. Assume that your shower is 2.45 m (about 8 ft) tall and can be modeled as an

Ivahew [28]

Answer:

λ = 4.9 m

Explanation:

given,

length of the organ pipe,L = 2.45 m

wavelength of the standing wave = ?

fundamental harmonic is given as,

$L= \dfrac{\lambda}{2}$

$\lambda= 2 \times L$

$\lambda= 2 \times 2.45$

λ = 4.9 m

Hence, the wavelength of the fundamental harmonic for standing waves in this shower is given by λ = 4.9 m

4 0

3 years ago

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How far can a person travel in 19 minutes, walking at a speed of 5.0 km/h ?

anyanavicka [17]

Answer:

5.0 km/h = 5.0 km/60min

speed = distance/time

distance = speed x time = 5.0km/60min x 19min = 1.6km

Explanation:

4 0

2 years ago

Read 2 more answers