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Vinil7 [7]
3 years ago
12

Two children playing on a spinning merry-go-round take turns riding and pushing. The merry-go-round slows, stops, and then speed

s up again as the children switch places. What best describes the motion of a third child who only sits and rides the merry-go-round?
Physics
1 answer:
Nata [24]3 years ago
4 0
Not steady, they'll be starting and stopping, compared to the kids that when they're on it's going steady, if that makes sense
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How much gravitational potential energy does a 45.2 kg object have when it is 21.9m above the ground?
Blizzard [7]

Answer:

Explanation:

The formula for gravitational potential energy is

Ep = m · g · h   Assuming that the acceleration is g = 10m/s²

Ep = 45.4 · 10 · 21.9 = 9,942.6 J

God is with you!!!

6 0
3 years ago
A substance with a define shape and volume is a
Vlad1618 [11]
Solid is the answer.
8 0
3 years ago
6) Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4
Studentka2010 [4]

Answer:

Amy's speed is 2/3 faster than Bill's

Explanation:

can't believe you don't know how to do this.

3 0
3 years ago
An electron has a kinetic energy of 10.1 eV. The electron is incident upon a rectangular barrier of height 18.2 eV and width 1.0
podryga [215]

Answer:

factor that the electron's probability of tunneling through the barrier increase 2.02029

Explanation:

given data

kinetic energy = 10.1 eV

height = 18.2 eV

width = 1.00 nm

wavelength = 546 nm

solution

we know that probability of tunneling is express as

probability of tunneling = e^{-2CL}   .................1

here C is = \frac{\sqrt{2m(U-E}}{h}

here h is Planck's constant

c = \frac{\sqrt{2\times 9.11 \times 10^{-31} (18.2-10.1) \times (1.60 \times 10^{-19}}}{6.626\times 10^{-34}}  

c = 2319130863.06

and proton have hf = \frac{hc}{\lambda } = {1240}{546} = 2.27 ev

so electron K.E = 10.1 + 2.27

KE = 12.37 eV

so decay coefficient inside barrier is

c' = \frac{\sqrt{2m(U-E}}{h}

c' = \frac{\sqrt{2\times 9.11 \times 10^{-31} (18.2-12.37) \times (1.60 \times 10^{-19}}}{6.626\times 10^{-34}}  

c' = 1967510340

so

the factor of incerease in transmisson probability is

probability = e^{2L(c-c')}

probability = e^{2\times 1\times 10^{-9} \times (351620523.06)}

factor probability = 2.02029

3 0
3 years ago
The flow of air caused by blend in the blank creates distant blank on earth surface
Mamont248 [21]

Question:

The flow of air caused by _____ and the Coriolis effect creates distinct _____ on Earth's surface.

Answer:

  1. Differences in heating
  2. Wind patterns

Explanation:

The flow of air caused by <u>variations in the rate at which the different parts are heated</u> up as well as the Coriolis effect combine to create distinct <u>wind patterns </u>on Earth's surface.

The Coriolis Effect is used to describe a "force" that causes things (like objects, planes, air currents) traveling long distances around the Earth to appear to bend as they move rather than in a straight line.

Cheers

8 0
3 years ago
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