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dmitriy555 [2]
3 years ago
15

How much work must be done to raise a 1100kg car 2m above the ground?​

Physics
2 answers:
N76 [4]3 years ago
6 0
21560J? i dont know
Xelga [282]3 years ago
4 0

Answer:

21560 J

Explanation:

Work = mg*h = 1100*9.8*2 = 21560 J

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The difference between relational and reactive aggression is that relational aggression is ______, whereas reactive aggression i
givi [52]

Answer:

Social, physical behavior

Explanation:

The relational aggression is the aggression which caused or give to person by doing harm to his or her relationship or social image.

Reactive aggression is the aggression which is caused by threatening someone, or caused by provocation, or caused due to frustration.

Therefore, the basic  differentiation in  between both the aggression is that relational aggression is caused by by damaging social status whereas reactive aggression is caused through physical behavior.

8 0
3 years ago
One has a frequency of 490 Hz and the other is 488 Hz. How many beats per second are heard?
tresset_1 [31]
When sounds at two different frequencies are combined,
two new sounds are created ... at the sum and difference
of the original frequencies.

Combining two sounds at 490 Hz and 488 Hz creates
beats at  978 Hz and 2 Hz.

The fluttering "wah wah" effect of the 2 Hz beat is much more
noticeable than the new sound at 978 Hz.
7 0
4 years ago
How do you give an example for finding net force?
Crazy boy [7]
--  6 people all trying to push a car out of snow

--  a Tug-o-War with 30 people of different sizes pulling on each end of the rope

--  you and your sister both pulling on the same doll (or Transformer)

--  lifting a book up from the table to a high shelf
    taking a book down from a high shelf to the table
    (one force is you; another force is gravity)

--  grabbing your big dog by his collar and trying to bring him inside

--  three people at the table all grab the ketchup bottle at the same time
7 0
3 years ago
Plate tectonics is unique to which terrestrial planet?
kow [346]
Hey there 

Plate tectonics are found on Earth. 
They are all over the world 

When a plate collides natural disasters happen. 
Answer is Earth 

Hope this helps  
5 0
4 years ago
Read 2 more answers
The velocity of a 1.3 kg block sliding down a frictionless inclined plane is found to be 1.26 m/s. 1.10 s later, it has a veloci
nasty-shy [4]

Answer:

\theta = 25.3^\circ

Explanation:

The acceleration of the block can be found by the kinematics equations:

v = v_0 + at\\5.88 = 1.26 + a(1.1)\\a = 4.2~m/s^2

Since the plane is frictionless, the only force acting on the block along the motion of the block is its weight.

F = mg\sin(\theta) = ma\\g\sin(\theta) = a\\(9.8)\sin(\theta) = 4.2\\\theta = 25.3^\circ

7 0
4 years ago
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