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3 years ago

List the 4 things technology can be.

Physics

2 answers:

ella [17]3 years ago

8 0

Answer:

mechanical

electronic

medical

industrail and manufacturing

inessss [21]3 years ago

6 0

Technology can be the four things listed below...

Phones
Computers
TVs
Playstation or Xbox

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Can the kinetic energy of an object be negative? Can the potential energy of an object be negative? Can a potential energy funct

IceJOKER [234]

Answer:

Kinetic energy cannot be negative

potential energy is a reference dependent quantity and it can be positive as well as negative both

Since potential energy is defined only for conservative force so it can not be found for friction force

Explanation:

Kinetic energy of an object is given by the formula

$KE = \frac{1}{2}mv^2$

here we know that

m = mass of object that can not be negative

v = speed of the object and since its square is given here so it can not be negative

so Kinetic energy is always positive

potential energy is given as the energy due to the virtue of the position of object

so it is

$\Delta U = -\int F.dr$

so potential energy is a reference dependent quantity and it can be positive as well as negative both

Since potential energy is defined only for conservative force so it can not be found for friction force

5 0

4 years ago

will the value of g be affected by the radius of the earth? consider the real shape of the earth. compare the acceleration due t

sp2606 [1]

Answer:

Yes, the value of g affected by the radius.

Explanation:

The formula for the force of gravity of 2 objects is

$F_{gravity} = G\frac{m_{1}m_{2}}{r^2}$ , where m1 and m2 are the masses of the 2 objects, r is the radius, and G is the gravitational constant, which is approximately $6.67 \cdot 10^{-11}$ .

Therefore, as the radius if bigger, the force of gravity is going to be smaller exponentially.

5 0

4 years ago

A cyclist and his bicycle have a combined mass of 88 kg and a combined

SpyIntel [72]

Answer:D

Explanation:

Mark brainly

5 0

3 years ago

You are writing a science report and want to find accurate trustworthy information. Which would be the best resource?

fgiga [73]

<span>an encyclopedia

Happy studying!</span>

8 0

4 years ago

Read 2 more answers

An audi travels at 88 km/hr over a distance of 22 km. calculate.25 the time taken for the audi to travel this distance.

sammy [17]

The Audi covers 88 in one hour.
22 is one quarter of 88, so it takes one quarter of one hour. That's 15 minutes.
Note:. The answer would be the same for any other brand of car, motorcycle, airplane etc.

4 0

4 years ago