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vladimir2022 [97]
2 years ago
11

What is the resistance (R) when voltage is 179V and current is 5 Amps?

Physics
1 answer:
Evgesh-ka [11]2 years ago
3 0

Answer:

R = 35.8 Ω

Explanation:

Recall Ohm's Law:

V = I * R

then R = V / I

in our case:

R = 179 V / 5 A = 35.8 Ω

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The mass of 150cm³ of stone is 400g. its density is​
WITCHER [35]

Answer:2.67kgm/s cube

Explanation: density = mass ÷ volume = 400 ÷ 150

3 0
3 years ago
Determine the weight in newtons of a woman whose weight in pounds is 157. Also, find her mass in slugs and in kilograms. Determi
DerKrebs [107]

Answer:

Weight of the woman in Newton

   x =  698.6 \  N

 Mass of the woman in slug

  Mass =  4.86 \  slug

 Mass of the woman in kg

   Mass =  16 \  kg

  My weight in Newton

  W =  784 \  N

Explanation:

From the question we are told that

   The weight of the woman in pounds is  W = 157 \ lb

Converting to Newton

    1 N  =  0.22472 lb

    x N  =  157

=>   x =  \frac{157 *  1}{0.22472}

=>   x =  698.6 \  N

Obtaining the mass in slug

   Mass =  \frac{W}{g}

Here  g =  32.2 ft/s^2

So

     Mass =  \frac{157 }{32.2}

       Mass =  4.86 \  slug

Obtaining the mass in kilogram

     Mass =  \frac{W}{g}

Here  g =  9.8 \  m/s

So

   Mass =  \frac{157 }{9.8}

   Mass =  16 \  kg

Generally weight is mathematically represented as

     W =  m *  g

Given that my mass is   80 kg   then my weight is  

     W =   80 *9.8

      W =  784 \  N

6 0
3 years ago
Imagine that a loudspeaker is producing a quiet tone with a low pitch. How will its vibrations change:
iVinArrow [24]
I believe it is A :) hope this helped
5 0
3 years ago
What is a random motion ​
Leokris [45]

Answer:

Random Motion is a motion in which an object didn't go in a straight manner, for ex: zig zag lines, curved, etc.

Explanation:

7 0
3 years ago
Read 2 more answers
Whenever two apollo astronauts were on the surface of the moon, a third astronaut orbited the moon. assume the orbit to be circu
almond37 [142]
Missing question:
"Determine (a) the astronaut’s orbital speed v and (b) the period of the orbit"

Solution

part a) The center of the orbit of the third astronaut is located at the center of the moon. This means that the radius of the orbit is the sum of the Moon's radius r0 and the altitude (h=430 km=4.3 \cdot 10^5 m) of the orbit:
r= r_0 + h=1.7 \cdot 10^6 m + 4.3 \cdot 10^5 m=2.13 \cdot 10^6 m
This is a circular motion, where the centripetal acceleration is equal to the gravitational acceleration g at this altitude. The problem says that at this altitude, g=1.08 m/s^2. So we can write
g=a_c= \frac{v^2}{r}
where a_c is the centripetal acceleration and v is the speed of the astronaut. Re-arranging it we can find v:
v= \sqrt{g r}= \sqrt{(1.08 m/s^2)(2.13 \cdot 10^6 m)}=1517 m/s = 1.52 km/s

part b) The orbit has a circumference of 2 \pi r, and the astronaut is covering it at a speed equal to v. Therefore, the period of the orbit is
T= \frac{2 \pi r}{v} = \frac{2\pi (2.13 \cdot 10^6 m)}{1517 m/s} =8818 s = 2.45 h
So, the period of the orbit is 2.45 hours.
6 0
3 years ago
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