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stealth61 [152]
3 years ago
13

Walking across a carpet is an example of charge being transferred by

Physics
1 answer:
Sati [7]3 years ago
8 0

static electricity and friction

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An object is dropped on Earth from a height of 15 m. What is the magnitude of the velocity of the object just as it hits the gro
ivolga24 [154]
Here, we know, according to 3rd Equation of Kinematics, 
v² - u² = 2as

Here, u = 0  [ Free fall ]
a = 9.8 m/s² [ constant value for the Earth system ]
s = 15 m

Substitute their values, 
v² - 0² = 2 * 9.8 * 15
v² = 294
v = √294
v = 17.15 m/s

In short, Your Answer would be Option D

Hope this helps!
8 0
3 years ago
Read 2 more answers
If a force of 2n does work at the rate of -2sqrt2 w on an object moving iwth a speed of 2m/s the ale between the fore and teh ve
GrogVix [38]

Answer:

The value of the angle theta = 135degree, which is option c.

Explanation :

These are the options given in the question

a) 45 degrees

b)120 degrees

c)135 degrees

d)150 degrees

e) it is impossible to deliver a negative power.

The concept of work done on an object is applied here.

work = Fd

F = ma

work = mad

Work is a form of energy transferred by an object after the application of a force that act on the object. A step by step explanation is as attached below.

6 0
3 years ago
4 NaF + Br2 + Al(H3Li)2 -->
Agata [3.3K]

Answer:

Molecules are substances that contain two or more elements, if these elements are different, then the substance is also a compound.

However, considering only the definition of a molecule, it is evident that both CH4 and NaF are molecules as they contain more than one element.

Explanation:

hope this helps!!

5 0
3 years ago
How does the efficiency of the inclined plane vary with the inclination angle?
svlad2 [7]
Friction , as the angle gets huger and higher , this is less and less normal force into the inclined plane .
3 0
3 years ago
Matter is anything that has mass and takes up space. Which units of measurement can you use to describe these two properties?
Papessa [141]

Answer: Matter is anything that has mass and takes up space . Mass is amount of mass that an object contains. Mass is measured by scale . Volume is amount of space that matter takes up .

Explanation:

4 0
3 years ago
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