1. What do the elements Sulfur (S), Nitrogen (N), Phosphorous (P), and Bromine (Br) all have in

A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. The asteroid has a

Fudgin [204]

Answer:

Temperature will be 305 K

Explanation:

We have given The asteroid has a surface area $A=7.70m^2$

Power absorbed P = 3800 watt

Boltzmann constant $\sigma =5.67\times 10^{-8}Wm/K^4$

According to Boltzmann rule power radiated is given by

$P=\sigma AT^4$

$3800=5.67\times 10^{-8}\times 7.70\times T^4$

$T^4=87.0381\times 10^8$

$T=305K$

So temperature will be 305 K

8 0

3 years ago

In the Compton effect, the wavelength of the scattered photon is __________ the wavelength of the incident photon.

SOVA2 [1]

Answer:

he wavelength is different (greater) than the wavelength of the incident photon

Explanation:

The Compton effect is the scattering of a photon by an electron, this process is analyzed using the conservation of momentum, in which we assume that initially the electron is at rest and after the collision it recedes, therefore the energy of the incident photon decreases and consequently its wavelength changes

To complete the sentence we use the wavelength is different (greater) than the wavelength of the incident photon

3 0

2 years ago

How do you state a hypothesis

Kaylis [27]

Answer:

If and then for example: If you get at least 6 hours of sleep, you will do better on tests than if you get less sleep.

Explanation:

4 0

2 years ago

Depending on how there used, pulleys can have different uses. One use for pulleys is that they can...

hichkok12 [17]

I think it’s D hope that helped

6 0

2 years ago

The angular position of a point on the rim of a rotating wheel is given by θ(t) = 4.0t - 3.0t2 + t3, where θ is in radians and t

MAXImum [283]

Answer:

(a) 0 rad

(b) 4 rad/s

(c) 28 rad/s

(d) 12 rad/s^2

(e) 6 rad/s^2

(f) 18 rad/s^2

Explanation:

$\theta (t)=4t-3t^{2}+t^{3}$ .... (1)

(a) here, we need to find angular displacement when t = 0 s

Put t = 0 in equation (1), we get

$\theta (t=0)=0$

(b) Angular velocity is defined as the rate of change of angular displacement.

ω = dθ / dt

So, differentiate equation (1) with respect to t.

$\omega =\frac{d\theta }{dt}=4-6t+3t^{2}$ .... (2)

Angular velocity at t = 2 s

Put t = 2 s in equation (2), we get

ω = 4 - 6 x 2 + 3 x 4 = 4 rad/s

(c) Angular velocity at t = 4 s

Put t = 4 s in equation (2), we get

ω = 4 - 6 x 4 + 3 x 16 = 4 - 24 + 48 = 28 rad/s

(d) Average angular acceleration,

$\alpha =\frac{\omega (t=4s)-\omega (t=2s)}{4-2}$

α = (28 - 4) / 2 = 12 rad/s^2

(e) The rate of change of angular velocity is called angular acceleration.

α = dω / dt

α = - 6 + 6 t

At t = 2 s

α = - 6 + 12 = 6 rad/s^2

(f) At t = 4 s

α = - 6 + 24 = 18 rad/s^2

4 0

2 years ago