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3 years ago

Please help 100 points if right and if its not an awnser then will be reported and deleted

Physics

2 answers:

Rudik [331]3 years ago

7 0

a) hydrosphere and biosphere

b) biosphere and atmosphere

c) geosphere and hydrosphere

d) atmosphere and geosphere

hope this helps (and is correct)

pickupchik [31]3 years ago

6 0

Hey there these are the answer choices . Hope this helped you :D

1.Grady swims in the ocean. hydrosphere and biosphere

2.Lena takes a deep breath. biosphere and atmosphere

3.Water vapor condenses on a glass geosphere and hydrosphere

4.Gusty winds weather sandstone in the desert. atmosphere and geosphere

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Trucks can be run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 20

Genrish500 [490]

Answer:

The time it can operate between chargins in minutes is

$t=102.8 minutes$

Explanation:

Given: $m=500kg$ , $r=1.0m$ , $w=200\pi rad/s$

a). The rotational kinetic energy

$K_R=\frac{1}{2}*I*w^2$

$I=\frac{1}{2}*m*r^2$

$I=\frac{1}{2}*500kg*(1.0m)^2$

$I=250 kg*m^2$

$K_R=\frac{1}{2}*250kg*m^2*(200\pi rad/s)^2$

$K_R=49.348x10^6J$

b). The power average 0.8kW un range time can be find

$P=\frac{K_R}{t'}$

Solve to t'

$t=\frac{K_R}{P}$

$t=\frac{49.348x10^6}{0.8x10^3w}=6168.5s$

$t=6168.5s\frac{1minute}{60s}=102.8 minutes$

3 0

3 years ago

What is the work behind these answers?

Sati [7]

I think you need to solve them

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3 years ago

A car ends up colliding with a tree. Compare the force the car exerts on the tree with the force the tree exerts on the car.

Fynjy0 [20]

Answer: The force will exert into the tree causing it to absorb the compact hit by the car which means the car gets damaged severely but the tree maybe only has a tiny crack. Mark me as Brainliest! :)

Explanation:

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3 years ago

What are the differences between concave lens and concave mirrors?

Pavel [41]

Explanation:

A concave mirror can form real, inverted images of various sizes and virtual, erect and enlarged images whereas a concave lens forms only virtual, errect and diminished images.

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3 years ago

The total charge that an automobile battery can supply without being recharged is given in terms of Ampere-hours. A typical 12-V

anyanavicka [17]

Answer:

7 hours

Explanation:

The total charge contained in the battery is

$Q = 49 A \cdot h$