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Bumek [7]
4 years ago
13

What is displacement?

Physics
1 answer:
LUCKY_DIMON [66]4 years ago
3 0

In Physics, displacement is the distance and direction of the shortest path
from the starting point to the ending point, regardless of the path followed
to get there.


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Plzzzzzzzz helppppp plzzzzzz
kipiarov [429]

Answer:

As the sun warms the land, the air above the land warms too. The warmer, lighter air rises, and the cooler heavier air above the water moves in and replace the rising warm air

Explanation:

In convection current, during a hot sunny day, the land is heated up and the air above the land becomes warm and rises upward because of their low density. The cool breeze from the sea with higher density moves downward to replace the risen warm air. This process is known sea breeze which happens in the day time.

Based on the given options, we can choose the first option.

"As the sun warms the land, the air above the land warms too. The warmer, lighter air rises, and the cooler heavier air above the water moves in and replace the rising warm air".

7 0
3 years ago
The potential energy for a certain mass moving in one dimension is given by U(x)=(2.0J/m3)x3−(15J/m2)x2+(36J/m)x−23JU(x)=(2.0J/m
Angelina_Jolie [31]

Answer:x=2 and x=3

Explanation:

Given

Potential Energy for a certain mass is

U(x)=2x^3-15x^2+36x-23

and we know force is given by

F=-\frac{\mathrm{d} U}{\mathrm{d} x}

F=-(2\times 3x^2-15\times 2x+36)

For Force to be zero F=0

\Rightarrow 6x^2-30x+36=0

\Rightarrow x^2-5x+6=0

\Rightarrow x^2-2x-3x+6=0

\Rightarrow (x-2)(x-3)=0

Therefore at x=2 and x=3 Force on particle is zero.

8 0
3 years ago
Two equal-mass pieces of metal are sitting side by side at the bottom of a deep lake. One piece is aluminum and the other is lea
murzikaleks [220]

Answer:

A. Aluminium

Explanation:

Buoyant force is  simple terms refers to the weight of water displaced when an object is immersed in it. The higher the volume of an object, the higher the buoyant force.

From the problem, we have two metals of equal mass, aluminium and lead, of which lead is denser.

density =\frac{mass}{volume}

Volume =\frac{mass}{density}

This means that the volume of each metal depends on the density, and for the fact that lead is denser , it will have a lower volume than aluminium which means Aluminium will have a greater buoyant force.

5 0
4 years ago
A 6.0 kg block, starting from rest, slides down a frictionless incline of length 2.0 m. When it arrives at the bottom of the inc
erica [24]
Since 
<span>Vf^2 = 2*a*S </span>
<span>Given S=3.6m, thus </span>
<span>a = Vf^2/(2*3.6) </span>
<span>a = Vf^2/7.2 </span>

<span>Let d be the distance along the slope at which the velocity is 0.5Vf, then </span>
<span>(0.5Vf)^2 = 2*a*d </span>
<span>or </span>
<span>d = (0.5*Vf)^2/(2*a) </span>
<span>with a = Vf^2/7.2, we have </span>
<span>d = 0.9 m</span>
8 0
3 years ago
What was a pattern in nature that contributed to an understanding of atoms?
devlian [24]

the fact that chemicals have different colors

7 0
2 years ago
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