3 years ago

Help me with # 3 & #4 please

Physics

1 answer:

defon3 years ago

6 0

Answer:

DveC başarılar yardı olduysam sevinirim

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An apparatus is used to prepare an atomic beam by heating a collection of atoms to a temperature T and allowing the beam to emer

Zepler [3.9K]

Answer:

As shown in the attachment

Explanation:

The detailed steps and mathematical assumptions and manipulation is as shown in the attachment.

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3 years ago

Desde que altura debes de lanzar una canica de 50g para que adquiera una energia de 100j

AnnZ [28]

Answer:

204 m

Explanation:

When the marble is dropped from a certain height, its gravitational potential energy converts into kinetic energy. So the kinetic energy gained is equal to the variation of gravitational potential energy:

$\Delta U=mg\Delta h$

where

m is the mass of the marble

g = 9.8 m/s^2 is the acceleration of gravity

$\Delta h$ is the change in height

In this problem, we have

m = 50 g = 0.05 kg

$\Delta U = 100 J$

Solving the formula for $\Delta h$ , we find the necessary height from which the marble should be dropped:

$\Delta h = \frac{\Delta U}{mg}=\frac{100}{(0.05)(9.8)}=204 m$

7 0

3 years ago

How many complete revolutions are needed to draw the angle 725°?

uysha [10]

C. A complete revolution is 360 degree. two revolution is 720.

8 0

3 years ago

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While passing a slower car on the highway, you accelerate uniformly from 20.1 m/s to 33.2 m/s in a time of 10.6 s. How far do yo

BaLLatris [955]

Answer:

282 m

Explanation:

Given:

v₀ = 20.1 m/s

v = 33.2 m/s

t = 10.6 s

Find: Δx

Δx = ½ (v + v₀) t

Δx = ½ (33.2 m/s + 20.1 m/s) (10.6 s)

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3 years ago

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The wavelength of the light is 0.63 micrometers. How much of this length stays in 1 centimeter

bazaltina [42]

11,066,669.
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3 years ago