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Nitella [24]
3 years ago
15

Tarzan is hanging onto a vine, while standing on a branch. What will be his speed when he gets to the bottom of the swing if the

branch was 6 m above this lowest point of his swing?
Physics
1 answer:
podryga [215]3 years ago
5 0

Answer: His weight plus the centripetal force must equal 1170 N

Explanation:

83.0 [g + (v^2 / r)] = 1170

v^2 / 18.0 = (1170 / 83.0) - 9.81

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A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able
enyata [817]

Answer:

A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able to slide past each other. The most likely phase of the substance is liquid.

A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able to slide past each other. What is most likely the phase of the substance?

gas. NO. Gases have expansibility, that is, they occupy all the space available, so they wouldn't occupy just one half of the container.

liquid. YES. The description fits the liquid phase.

solid and gas. NO. Solids occupy fixed positions and their atoms can't slide past each other.

liquid and solid. NO. Solids can't be present due to their lack of movement.

A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able to slide past each other. The most likely phase of the substance is liquid.

You can learn more about the states of matter here: brainly.com/question/18538345

Explanation:

3 0
3 years ago
Is geothermal energy normally used for powering business, home, or schools today?
juin [17]

A sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°C. If the system is at dynamic equilibrium, which of these statements is true?  


8 0
3 years ago
I need help pleaseee
Svetllana [295]

Answer:

a refraction

b reflection

creflection

d refraction

brainliest plzz

7 0
3 years ago
The solar system is 25,000 light years from the center of our Milky Way galaxy. One light year is the distance light travels in
aksik [14]

Answer:

The time period of the solar system's orbit is 2.05\times10^{8}\ year

Explanation:

Given that,

Distance = 25000 light year

Speed of light c=3\times10^{8}\ m/s

Speed of astronomers = 230 m/s

Suppose the orbit is circular, we need to find the time period of the solar system's orbit.

We need to calculate the time period

Using formula of time period

t = \dfrac{d}{v}

t = \dfrac{2\pi r}{v}

r = distance

t = time

v = speed

Put the value into the formula

t=\dfrac{2\pi\times25000\times9.46\times10^{15}}{230\times10^{3}}

t=6.460\times10^{15}\ sec

Time in years

t=\dfrac{6.460\times10^{15}}{3.15\times10^{7}}

t=2.05\times10^{8}\ year

Hence, The time period of the solar system's orbit is 2.05\times10^{8}\ year

4 0
4 years ago
Water at 0°C loses 1140 calories worth of heat. How much of the water freezes? [Lf= 79.7 cal/g] a) 16.8 g b) 81.5 g c) 0.002 g d
Simora [160]

Answer:

option d)

Explanation:

The amount of heat required to convert the 1 g of ice at 0 degree C to 1 g water at 0 degree C is called latent heta of fusion.

H = m Lf

where,, h is the heat required, m is the mass and Lf is the latent heat of fusion

1140 = m x 79.7

m = 14.3 g

8 0
3 years ago
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