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3 years ago

Will give Brainliest!! Question attached.

Physics

2 answers:

ss7ja [257]3 years ago

8 0

Answer:

im pretty sure it is 3.0 K

Explanation:

julsineya [31]3 years ago

6 0

1.5 is the correct answer as voltage is propositional to the intellectual cause of resistances as resistance is an
arduous to the convoluted voltage

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A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A horizontal force of 2.5 N is applied o

Masja [62]

Answers is F=7.84 N

Friction force resists the effect of horizontal force and trying to approch to a limiting force.

we have formula for limiting friction force between block and floor

F=Ц N

where N=mg

putting values we get answer.

Download pdf

3 0

2 years ago

An object moves in uniform circular motion at 25 m/s and takes 1.0 second to go a quarter circle. What is the radius of the circ

FromTheMoon [43]

Object Motion: 25 m/s

Circumference of Circle:
1/4 Circumference of Circle in 1 second = 25 meters
25 meters times 4 = Circumference of Circle
Circumference = 100 meters

Formula to Find Circumference of Circle: (work opposite)
C = 2<span>πr

100 = </span>2πr divided
100/2π = r simplify
50/π = r (exact radius)

Answer:
50/π meters = r (exact radius)

4 0

3 years ago

Read 2 more answers

A jet travels 1000 kilometers in 5 hours. What is its average speed?

nlexa [21]

Given:

Total distance = 1000 kilometer

Total time = 5 hours

To find:

Average speed = ?

Formula used:

$v_{avg}$ = $\frac{s}{t}$

Where $v_{avg}$ = average speed

s = total distance

t = total time

Solution:

Average speed of the jet is given by,

$v_{avg}$ = $\frac{s}{t}$

Where $v_{avg}$ = average speed

s = total distance

t = total time

$v_{avg}$ = $\frac{1000}{5}$

$v_{avg}$ = 200 km/ h

Thus, average speed of the jet is 200 km/h.

Hence, Option (A) is correct.

7 0

3 years ago

Why is the level of glycerin initially decreases when heated ?

Mila [183]

Because glucerin is hotter so it decreases faster

4 0

2 years ago

Question 20

oksian1 [2.3K]

Answer:

The image distance is 17.56 cm

Explanation:

We have,

Height of light bulb is 3 cm.

The light bulb is placed at a distance of 50 cm. It means object distance is, u =-50 cm

Focal length of the lens, f = +13 cm

Let v is distance between image and the lens. Using lens formula :

$\dfrac{1}{f}=\dfrac{1}{v}-\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{f}+\dfrac{1}{u}\\\\\dfrac{1}{v}=\dfrac{1}{13}+\dfrac{1}{(-50)}\\\\v=17.56\ cm$

So, the image distance is 17.56 cm.

5 0

2 years ago