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2 years ago

The correct symbol for the metric (SI) unit of temperature isA: kB: tC: fD: c

Physics

1 answer:

yulyashka [42]2 years ago

6 0

The correct symbol for measuring temperature is in (K)- for Kelvins. Hope this helped :)

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Use a common denominator to find-2/3 + -4/5

Juliette [100K]

Answer:

-22/15

Explanation:

the least common denominator is 15 so first you multiply -2/3 by 5 in both the numerator and denominator making it -10/15

Then you do the same to -4/5 except you multiply the numerator and denominator by 3 giving you -12/15

If you add -10/15+ -12/15 you get -22/15

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3 years ago

A small oil droplet is sprayed between the plates of a parallel plate capacitor. The droplet has a net charge equal to that of 3

masha68 [24]

Answer:

…..

Explanation:

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2 years ago

How fast is a 950 kg car traveling if it has 3,800 Joules of energy

inysia [295]

Answer:

The kinetic energy K of a moving object is: K= 1/2mv to the second power

where m is the mass and v the velocity of the object.

Using this formula, we can calculate v for this problem

Explanation:

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2 years ago

CP Bang! A student sits atop a platform a distance h above the ground. He throws a large firecracker horizontally with a speed.

Firlakuza [10]

Answer:

h = v₀ g / a

Explanation:

We can solve this problem using the kinematic equations. As they indicate that the air does not influence the vertical movement, we can find the time it takes for the body to reach the floor

y = $v_{oy}$ t - ½ g t²

The vertical start speed is zero

t² = 2t / g

The horizontal document has an acceleration, with direction opposite to the speed therefore it is negative, the expression is

x = v₀ₓ t - ½ a t²

Indicates that it reaches the same exit point x = 0

v₀ₓ t = ½ a t2

v₀ₓ = ½ a (2h / g)

v₀ₓ = v₀

h = v₀ g / a

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3 years ago

A converging lens has the focal length of 25 cm. A 10-cm object is placed at 30 cm in front of the lens. How far is the image fr

Rina8888 [55]

Explanation:

Given that,

Focal length of a converging lens, f = +25 cm

Size of the object, h = 10 cm

Object distance, u = -30 cm

We need to find the image distance and the size of the image.

Using lens formula, $\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}$ , v is image distance

$\dfrac{1}{v}=\dfrac{1}{f}+\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{25}+\dfrac{1}{(-30)}\\\\v=150\ cm$

Magnification,

$m=\dfrac{v}{u}=\dfrac{h'}{h}$

h' is the size of image

$h'=\dfrac{vh}{u}\\\\h'=\dfrac{150\times 10}{(-30)}\\\\h'=-50\ cm$

So, the image distance is 150 cm the size of image is 50 cm.

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2 years ago

The correct symbol for the metric (SI) unit of temperature isA: kB: tC: fD: c​

The correct symbol for the metric (SI) unit of temperature isA: kB: tC: fD: c