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3 years ago

What spreads light into its own individual colors?

2 answers:

6 0

Light, such as sunlight, that is a combination of all the colors. Under white light, white objects appear white and colored objects appear in their individual colors.... Hope this helps! :)

Lelechka [254]3 years ago

3 0

Sunlight it can reflect

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A disk with a rotational inertia of 5.0 kg. m2 and a radius of 0.25 m rotates on a frictionless fixed axis perpendicu-

diamong [38]

Answer:1.6 rad/s

Explanation:

Given

moment of Inertia of disk $I=5 kg-m^2$

radius of disc $r=0.25 m$

Force $F=8 N$

Torque $T=I\alpha =F\cdot r$

$5\times \alpha =8\times 0.25$

$\alpha =0.4 rad/s^2$

using

$\theta =\omega _0\times t+\frac{\alpha t^2}{2}$

$\pi =0+\frac{0.4t^2}{2}$

$2\pi =0.4t^2$

$t^2=5\pi$

$t=\sqrt{5\pi }$

$t=3.96 s$

$\omega =\omega _0+\alpha t$

$\omega =0+0.4\times 3.96$

$\omega =1.58 rad/s\approx 1.6 rad/s$

3 0

4 years ago

The barometer of a mountain hiker reads 930 mbars at the beginning of a hiking trip and 780 mbars at the end. Neglecting the eff

lara31 [8.8K]

We could use the change of pressure to calculate for the height climbed by the mountain hiker. The change of pressure is given by

p = rho * g * h, where p is the change of pressure, rho is the air density, g is the acceleration due to gravity, and h is the height.

Using the conversion 1 mbar = 100 Pa,

(930 - 780)(100) = (1.20)(9.80)h
15000 = 1.20*9.80*h

h = 1.28 km

6 0

4 years ago

An object 10mm in height is located 20cm from a crown glass spherical surface whose power is +10.00DS. Locate the image

Tasya [4]

The image is present at 20cm from the crown glass spherical surface.

To find the answer, we need to know about the lens formula.

<h3>What's the lens formula?</h3>

It's (1/V)-(1/U)= (1/f)
V= image distance from the lens, U= object distance, f= focal length of the lens

<h3>What's the image distance, if object is present at 20cm from crown glass of power 10DS?</h3>

Focal length (f)= 1/ power = 1/10 = 0.1 m
U= -20cm = -0.2m (-ve sign due to sign convection)
(1/V)-(-1/0.2)= (1/0.1)

=> (1/V)+5=10

=> 1/V= 5

=> V=0.2m = 20cm

Thus, we can conclude that the image is present at 20cm.

Learn more about the lens formula here:

brainly.com/question/2098689

#SPJ1

7 0

2 years ago

What is the on ohooke benden

-Dominant- [34]

Answer:Work is the energy required to move an object from one point to another. while power is the energy transferred per unit time.

6 0

3 years ago

How do I find the work done by something if I am only given force, mass, and acceleration?

Anna [14]

Yeah oppp because this is yes

8 0

3 years ago