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2 years ago

What type of charges attract each other

Physics

1 answer:

Ksivusya [100]2 years ago

4 0

Answer:

opposite charges attract each other while same charges repel each other.

~batmans wife dun dun dun.....

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a uniform beam of length l and mass mb is supported by two pillars located l/3 from either end, as shown in the figure. a duck o

Cloud [144]

When the system is in equilibrium, the sum of the moment about a point is

zero.

$Force \ shown \ by \ the \ scale \ under \ the \ right \ pillar \ is \ F = \dfrac{(m_B - 2 \cdot m_D) \cdot g}{2}$

Reasons:

Length of the beam = l

Mass of the beam = $m_B$

$Location \ of \ the \ two \ pillars = \dfrac{l}{3} \ from \ either \ end$

Mass of the duck = $m_D$

Required:

Force shown by the scale under the right pillar.

Solution:

The location of the duck = On the left end of the beam

When the system is in equilibrium, we have; ∑M = 0

Taking moment about the left pillar, we get;

Clockwise moment = $m_D \times g \times \dfrac{l}{3} + F \times \dfrac{l}{3}$

Anticlockwise moment = $m_B \times g \times \dfrac{l}{6}$

At equilibrium, clockwise moment = Anticlockwise moment

Therefore;

$m_D \times g \times \dfrac{l}{3} + F \times \dfrac{l}{3} = m_B \times g \times \dfrac{l}{6}$

$F \times \dfrac{l}{3} = m_B \times g \times \dfrac{l}{6} - m_D \times g \times \dfrac{l}{3}$

$F = \dfrac{m_B \times g \times \dfrac{l}{6} - m_D \times g \times \dfrac{l}{3}}{\dfrac{l}{3} } = \dfrac{(m_B - 2 \cdot m_D) \cdot g}{2}$

$Force \ shown \ by \ the \ scale \ under \ the \ right \ pillar, \ F = \dfrac{(m_B - 2 \cdot m_D) \cdot g}{2}$

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2 years ago

Do the beliefs that make up the Five Pillars of Islam sound drastically different than what you have learned previously about th

muminat

In order to make an argument about the beliefs of Islam in relation to other monotheistic religions such as Christianity and Judaism, it is necessary to carry out more in-depth research on such religions to form a more consistent basis of argument.

<h3 /><h3>What are the Five Pillars of Islam?</h3>

They correspond to the principles required for practitioners of religion, which are:

Faith
Prayer
Alms-giving
Fasting
Pilgrimage

Therefore, from in-depth research on Islam, Christianity, and Judaism, you can write a credible argument about how the foundations of religions are similar and faith-based, positioning your argument in religious ethics that reduces prejudice and stereotypes.

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2 years ago

An object of mass m 1 moving with speed v collides with another object of mass m 2 at rest and stick to it. Find the impulse to

garri49 [273]

Answer:

(m1+m2)vo=m1v+m2×0

⟹vo=m1+m2m1v

The impulse imparted to second object is equal to change is momentum is -

J=m2vo=m1+m2m2m1v

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2 years ago

A 2 kg ball is attached by a string to the top of a vertical pole and swings in a circle of radius 1.2 m. If the string makes an

never [62]

Answer:

v = 3.81 m/s

Explanation:

First, we will find out the radius (r)

sinΘ = r / L

r = LsinΘ

on substituting the values, we get

r = 1.2 × sin18°

r = 0.370 m

Now,

The tension (T) can be calculated as

ΣF(y) = 0

Tcos18° - mg = 0

T = mg / cos18.8°

on substituting the values, we have

T = (2kg x 9.8m/s²) / cos18°

T = 20.60 N

Now, applying the equilibrium condition in horizontal direction. we have

$\Sigma F_x = ma_c = Tsin\theta = 0$

also, the centripetal acceleration $a_c=\frac{v}{r}$

on substituting the values, we get

m(v² / r) = Tsin18°

v = (rTsin18° / m)

v = [(1.2m)(20.60 × sin18°) / 2kg]

v = 3.81 m/s

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3 years ago

A phase diagram assumes______

PtichkaEL [24]

Choice D, pressure.

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2 years ago

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