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vlada-n [284]
4 years ago
14

A circuit is used in which process? A. electricity B. magnetism C. velocity D. gravity

Physics
1 answer:
umka2103 [35]4 years ago
7 0

Answer:

Electricity

Explanation:

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When you multiply (2.2500x10^3) x (3.00 x10^5) =675,000,000 report this answer to decimal using scientific notation
zavuch27 [327]

Answer:

6.75\times 10^{8}

Explanation:

(2.2500x10^3) x (3.00 x10^5)

First add the power values since all are to power 10 hence this will be 3+5=8

Then multiply the digit intergers ie 2.25*3=6.75

Therefore, in scientific notation this will be represented as 6.75\times 10^{8}

8 0
4 years ago
6. What is the complete spectrum of all forms of light?
TiliK225 [7]

Answer:

b. the electromagnetic spectrum

Explanation:

the electromagnetic spectrum contains all the forms of light, including gamma rays, x-rays, ultraviolet radiation, visible light, infrared, radio waves, microwaves, etc

7 0
3 years ago
An object is placed 9.5 cm in front of a convex spherical mirror. Its image forms 3.2 cm behind the mirror. What is the radius o
o-na [289]

Using the mirror formula.

1/v + 1/u = 1/f

1/9.5 + 1/3.2 = 1/f

1/f = 3.2 + 9.5 / 9.5 * 3.2

1/f = 4.82 cm

Radius = 2f

Radius = 2 x 4.82

Radius = 9.64 cm

8 0
4 years ago
Read 2 more answers
Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. there is a 2.0 cm diameter restriction on the line. what is the velocity
Vanyuwa [196]
To determine the velocity in the restriction, we need to remember the law of conservation of mass where mass in should be equal to the mass out since mass cannot be created or destroyed. For this system, mass flow rate in is equal to mass flow rate out. We do as follows:

Mass flow rate in = Mass flow rate out
density (volumetric flow rate in) = density (volumetric flow rate out)

Since the liquid in and out are the same, then density would be cancelled.
(volumetric flow rate in) = (volumetric flow rate out)
Area in x velocity in = Area out x velocity out
velocity out = area in x velocity in / area out
velocity out = π (4/2)^2 (1.0) / π (2/2)^2
velocity out = 4 m/s
4 0
3 years ago
A stone thrown off a bridge 10m above a river has an initial velocity of 8ms at an angle of 25 degrees above the horizontal. Wha
Darina [25.2K]

Explanation:

It is given that,

Height above which the stone was thrown, h = 10 m

Initial velocity of the stone, u = 8 m/s

Angle above the horizontal, \theta=25^{\circ}

The horizontal component of velocity is, u_x=v\ cos\theta=8\ cos(25)=7.25\ m/s

The vertical component of velocity is, u_y=v\ sin\theta=8\ cos(25)=3.38\ m/s

Let t is the time of flight in vertical motion. The second equation of motion is :

h=u_yt-\dfrac{1}{2}gt^2

10=3.38t-\dfrac{1}{2}\times 9.8t^2      

t = 0.34 seconds

Let s is the range of the stone. It can be calculated as :

s=u_x\ cos\theta \times t

s=7.25\times 0.34

s = 2.46 meters

So, the range of the stone is 2.46 meters. Hence, this is the required solution.

7 0
3 years ago
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