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MatroZZZ [7]
3 years ago
11

Rasheed ran down the football field at a speed of 7m/s. If he got to the end in 23

Physics
1 answer:
stira [4]3 years ago
7 0

Answer:

<h3>The answer is 161 m</h3>

Explanation:

To find the distance covered we use the formula

<h3>distance = velocity × time</h3>

From the question

velocity = 7 m/s

time = 23 s

We have

distance = 7 × 23

We have the final answer as

<h3>161 m</h3>

Hope this helps you

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A lightbulb consumed 1100J in 30 minutes. Find Power, resistance, and calculate energy in kWh
lisov135 [29]

Explanation:

30 minutes is 1800 seconds.

Power = energy / time

P = 1100 J / 1800 s

P = 0.611 W

Converting the energy from J to kWh:

1100 J × (1 Ws / 1 J) × (1 kW / 1000 W) × (1 h / 3600 s) = 3.06×10⁻⁴ kWh

To find resistance, you need to be given either the voltage or the current.

5 0
3 years ago
Please help! Thanks so much! :)
notsponge [240]

Answer: B

Explanation: I'm not 100% sure tho sorry if i'm wrong

7 0
3 years ago
You are designing an optical fiber scope for directing light into a confined area. You want to keep light within the fiber. Base
shepuryov [24]

Answer:

Explanation:

 For entry of light into tube of unknown refractive index

sin ( 90 - 25 ) / sinr = μ , μ is the refractive index of the tube , r is angle of refraction in the medium of tube

r = 90 - C where C is critical angle between μ and body medium in which tube will be inserted.

sin ( 90 - 25 ) / sin( 90 - C)  = μ

sin65 / cos C = μ

sinC = 1.33 / μ  , where 1.33 is the refractive index of body liquid.

From these equations

sin65 / cos C = 1.33 / sinC

TanC = 1.33 / sin65

TanC = 1.33 / .9063

TanC = 1.4675

C= 56°

sinC = 1.33 / μ

μ = 1.33 / sinC

= 1.33 / sin56

= 1.33 / .829

μ = 1.6   Ans

3 0
3 years ago
Which statement best describes the isothermal process? A. the temperature remains constant B. the temperature increases at a con
Veronika [31]

Answer:

The answer would be A. - the temperature remains constant

Explanation:

An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0

5 0
3 years ago
Read 2 more answers
If the frequency of the wave is 140 hz, what is the speed of the wave?
saveliy_v [14]
If f=140hz
speed=?
wavelength=?
without all information given, it would be difficult to answer but the formula is speed=frequency ×wavelength
4 0
3 years ago
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