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2 years ago

The purpose of technology is to solve problems and meet needs. True False

Physics

1 answer:

BARSIC [14]2 years ago

4 0

The above given sentence is true reason being the use of Technology.

Explanation:

The basic purpose double technology is to make hard work easier and help in meeting the needs. Technology was being developed and is being upgraded so as to make some of the tasks, which were harder to do without it, easier.

Development of Technology has made the work easier and the needs are being met with an additional profit of saving time.

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In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 27

Vera_Pavlovna [14]

Answer:

9.74 x 10^7 m/s

Explanation:

V = 27000 V

energy of electrons = e x V

K = 1.6 x 10^-19 x 27000 = 43200 x 10^-19 J

Energy = 1/2 m v^2

43200 x 10^-19 = 0.5 x 9.1 x 10^-31 x v^2

v^2 = 9.495 x 10^15

v = 9.74 x 10^7 m/s

4 0

3 years ago

I was reading an old thermodynamics textbook and came across this equation describing change in internal energy. What does the (

RoseWind [281]

Explanation:

I remember that notation! The expression

$dQ = dU = (\dfrac{\partial U}{\partial T})_{V} dT+ (\dfrac{\partial U}{\partial V})_{T}dV$

is the 1st law of thermodynamics and it refers to the heat supplied to the system dQ which is also a change in its internal energy dU. The first term is the <u>partial</u> derivative of the internal energy U with respect to temperature T while the volume V is kept constant, as denoted by the subscript V. The 2nd term is similar but this time, temperature is kept constant while its volume partial derivative is being taken.

Ah, memories!

8 0

2 years ago

A 72-tooth gear is connected to a 12-tooth gear. If the large gear makes one complete turn, how many turns

viktelen [127]

You divide 72 by 12 to get 6.

8 0

2 years ago

Heat pumps move heat from __________ to __________ areas & REQUIRES energy. *

sergejj [24]

The correct answer to this question is false

8 0

2 years ago

Sasha has just gotten a new job in a nearby city. After comparison shopping, she found that renting a nice two-bedroom apartment

tatyana61 [14]

Ill provide the answer choices here, assuming its from edge.

A) Sasha’s monthly expenses would be less for buying than for renting.

B) The extra expenses in the mortgage payment cover all maintenance and repairs.

C) Sasha’s down payment will likely be less if she decided to buy.

D) Sasha will own the house and earn equity as its value increases.

the correct answer is D) Sasha will own the house and earn equity as its value increases.

6 0

3 years ago

Read 2 more answers