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atroni [7]
3 years ago
13

Why do people cover their flowers on a cool night. Think about radiation absorption conduction and temperature

Physics
1 answer:
Blababa [14]3 years ago
3 0
When the temperature lowers the plants can freeze and die. One way to prevent that is to cover the plants so they dont freeze 

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A bowling ball is on the end of a rope of length 5 meters, the other end of which is attached to a hook in the ceiling. The ball
pogonyaev

Answer:

a = 0\,\frac{m}{s^{2}}

Explanation:

Let consider the following system, which is described in the image attached below and two reference axis, one parallel and the other perpendicular to the direction of motion. The corresponding equations of equilibrium are described herein:

\Sigma F_{n} = T - m\cdot g \cdot \cos \theta = 0

\Sigma F_{t} = m\cdot g \cdot \sin \theta = m\cdot a

The acceleration of the bowling ball at the lowest point occurs at \theta = 0^{\textdegree}

m\cdot g \cdot \sin \theta = m\cdot a

g\cdot \sin \theta = a

a = 0\,\frac{m}{s^{2}}

6 0
3 years ago
A plumber heats a plastic pipe, softens it, shapes it, and then lets it cool. After it is hardened, the
aev [14]

Answer:

thermoset

Explanation:

A thermoset material is a polymer that is irreversibly hardened by curing. Curing is induced by heat and cannot be undone because the polymers cross link during the process, creating permanent chemical bonds.

3 0
3 years ago
To a stationary observer, a man jogs east at 2.5 m/s and a woman jogs west at 1.5 m/s. from the woman's frame of reference, what
neonofarm [45]
T o a stationary observer, a man jogs east at 2.5 m/s and a woman jogs west at 1.5 m/s. from the woman's frame of reference, what is the man's velocity? it is 4m/s east
5 0
3 years ago
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Why is it difficult to move the heavier object than the lighter object on any surface <br>​
juin [17]

Answer:

it's is because the heavier the object is the more it will be pulled down by gravity n the lighter the object the lesser the gravity will pull it down

5 0
2 years ago
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Which element has an atomic number of 9 and an atomic mass of 19?
yan [13]

Answer:

fluorine

Explanation:

3 0
3 years ago
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