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creativ13 [48]
3 years ago
11

I will mark Brainliest for first and correct answer

Physics
1 answer:
elena-s [515]3 years ago
4 0

Answer:

B

Explanation:

We can logically deduce this by process of elimination we can rule out A because india is a democratic republic we can also rule out C because india has a prime minister and lastly D is ruled out because India's voting age is 18.

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Derek reads a rate of 25 words per min. How long would it take him to read a 225 work article if he read at a constant rate with
atroni [7]
Hello there! Your answer is (255/25=9) hope it helps and have a wonderful day!
6 0
4 years ago
How often should muscle strengthening activities be performed?
LekaFEV [45]

Answer:

once a week

Explanation:

once a week so answer B

3 0
3 years ago
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Explain how an iron needle can become magnetized...
Yanka [14]

Answer:

If a piece of iron is brought near a permanent magnet, the electrons within the atoms in the iron orient their spins to match the magnetic field force produced by the permanent magnet, and the iron becomes “magnetized.”

Explanation:

i dont know how to add align and domain

5 0
3 years ago
this is my 5th time waisting my points for this question because I could fail my final and I am not getting any answers so can s
Neko [114]

Answer:

<em>The person needs to apply 25 N to balance the seesaw</em>

Explanation:

<u>Moment</u>

The moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis.

The moment M of a force F located at a distance x from the axis of rotation is calculated as follows:

M = F.x

The image shows a moment of M=100 N.m is needed to be applied to balance the seesaw. It can also be noted that the distance to the pivot is x=4 m

To calculate the force needed to balance the seesaw, we solve for F:

\displaystyle F=\frac{M}{x}

\displaystyle F=\frac{100\ N.m}{4\ m}

F = 25 N

The person needs to apply 25 N to balance the seesaw

8 0
3 years ago
A satellite of mass M = 270kg is in circular orbit around the Earth at an altitude equal to the earth's mean radius (6370 km). A
zubka84 [21]

To solve this problem we will apply the concepts related to Orbital Speed as a function of the universal gravitational constant, the mass of the planet and the orbital distance of the satellite. From finding the velocity it will be possible to calculate the period of the body and finally the gravitational force acting on the satellite.

PART A)

V_{orbital} = \sqrt{\frac{GM_E}{R}}

Here,

M = Mass of Earth

R = Distance from center to the satellite

Replacing with our values we have,

V_{orbital} = \sqrt{\frac{(6.67*10^{-11})(5.972*10^{24})}{(6370*10^3)+(6370*10^3)}}

V_{orbital} = 5591.62m/s

V_{orbital} = 5.591*10^3m/s

PART B) The period of satellite is given as,

T = 2\pi \sqrt{\frac{r^3}{Gm_E}}

T = \frac{2\pi r}{V_{orbital}}

T = \frac{2\pi (2*6370*10^3)}{5.591*10^3}

T = 238.61min

PART C) The gravitational force on the satellite is given by,

F = ma

F = \frac{1}{4} mg

F = \frac{270*9.8}{4}

F = 661.5N

5 0
4 years ago
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