A 8.10-kg block is at rest on a horizontal floor. if you push horizontally on the 8.10-kg block with a force of 12.0 n, it just starts to move. what is the coefficient of static friction?

Mum's showing me the Ancient Egypt room. We're in awe of the fascinating artifacts and historical significance they hold.

As we explore the Ancient Egypt room, we are captivated by the rich cultural heritage and the remnants of an ancient civilization that once thrived along the Nile River. The artifacts on display offer a glimpse into the lives of the pharaohs**, the majestic pyramids, intricate hieroglyphics, and the religious beliefs of the ancient Egyptians. The room is adorned with statues, jewelry, burial artifacts, and mummified remains, all of which evoke a sense of wonder and admiration for this ancient civilization that flourished thousands of years ago. We feel privileged to witness and learn from these remarkable relics that connect us to a distant era of human history.

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Answer:

82.6

Explanation:

Conducting plates will be 3.75 m apart if an electric field strength of 4. 4 kV/m between them, if their potential difference is 15 kV

The potential difference, also referred to as voltage difference between two given points is the work in joules required to move one coulomb of charge from one point to the other. The SI unit of voltage is the volt. Volt Formula.

In a simple parallel-plate capacitor, a voltage applied between two conductive plates creates a uniform electric field between those plates. The electric field strength in a capacitor is directly proportional to the voltage applied and inversely proportional to the distance between the plates.

E = V/d

E = Electric field strength

d = distance between the plates

V = potential difference

Electric field strength = 4 kV/m

Potential difference  =  15 kV

d = V / E =  15 kV / 4 kV/m

  = 3.75 m

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Answer:

methylated spirit is in fact methanol added to ethanol (usually 10% methanol is used). The liquid evaporates which means that the liquid converts to a gaseous state. This process requires energy which it extracts from your body in the form of heat.

Explanation:

answer each problem with only one note

Electromagnetic waves consists of alternate electrical and magnetic fields.

Light is a electromagnetic wave. Hence in light wave, electrical and magnetic fields vibrate.

The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.

The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.

It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.

They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.

Haley noticed a small spot on her skin that turned out to be skin cancer.

Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.

Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.

The treatment most likely to use is Superficial External bean Radiation Therapy.

Then the correct option is B.

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Answer:

density=mass/volume

39.943/22.7=1.75

Explanation:

Newton's third law of motion states that for every action, there is an equal and opposite reaction. The action-reaction pair is used to describe the interaction between two objects. Therefore, when a car is speeding up as it drives along a level road, an action-reaction pair occurs.

An action-reaction pair is a pair of forces that are equal in strength and opposite in direction. When an object exerts a force on another object, the second object exerts an equal and opposite force on the first object. The action-reaction pair when a car speeds up as it drives along a level road can be explained as follows: Action force: The car exerts a force on the road in the forward direction. This is the action force. Reaction force: The road exerts a force on the car in the backward direction. This is the reaction force.

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The coefficient of static friction between the coin and the turntable is approximately 0.366.

The centripetal force required to keep the coin moving in a circle is provided by the frictional force between the coin and the turntable. The maximum frictional force that can be exerted without the coin sliding off is given by:

F_fmax = μ_s * N

where μ_s is the coefficient of static friction and N is the normal force exerted on the coin.

The centripetal force required is given by:

\(F_c = m \times (v^2 / r)\)

where m is the mass of the coin, v is its velocity, and r is the distance from the center of the turntable to the coin.

The velocity of the coin can be determined from the number of revolutions the turntable makes in a given time. If the turntable makes three revolutions in π seconds, the angular velocity of the turntable is:

ω = (2π * 3) / π = 6 rad/s

The tangential velocity of the coin is the same as the tangential velocity of any point on the turntable at the same distance from the center. So, we can write:

v = r * ω

Now, let's substitute the expressions for centripetal force and velocity into the maximum frictional force equation:

F_fmax = μ_s * N = m * (v^2 / r)

Since the coin is observed to slide off when it is greater than 10 cm from the center, we can use r = 0.1 m.

The normal force N is equal to the weight of the coin:

N = m * g

where g is the acceleration due to gravity.

Substituting all these values and equations, we get:

μ_s * m * g = m * (r * ω)^2 / r

μ_s * g = (r * ω)^2 / r

μ_s = (r * ω)^2 / (r * g)

Substituting the given values, we have:

μ_s = (0.1 m * 6 rad/s)^2 / (0.1 m * 9.81 m/s^2)

μ_s ≈ 0.366

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Answer:

true

Explanation:

the explanation is we would have been roasted if they weren't to weak

Explanation:

ce.

The equivalent capacitance of a parallel combination of capacitors is the reciprocal of the sum of the reciprocals of the individual capacitances. Therefore, the equivalent capacitance of a 3μF capacitor paralleled with a series combination of a 4μF and 5μF capacitor is:

1 / (1/3 + 1/4 + 1/5) = 1 / (1/12 + 1/20 + 1/15) = 1 / (7/60 + 3/60 + 4/60) = 60/14 = 4.2857 μF

Answer:

C

Explanation:

Option C - Its displacement in a given period of time is the correct alternative.

We have the velocity of an object.

We have to find out what other quantity is needed to determine the velocity.

Velocity is defines as the rate of change of displacement with time. Mathematically -

v = Δx/Δt

According to the question -

As discussed above, velocity is the ratio of displacement and time taken to cover that displacement. Velocity is the measure of how fast a specific object is moving. Lesser the time taken to cover the distance, faster is the object as -

F \(\alpha\) 1 / t

Acceleration, weight and mass of the object has nothing to correlate with the velocity of object at any specific location since mass and weight will remain constant throughout.  Therefore it is displacement in given period of time that is required.

Hence, Option C is the correct alternative.

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The answer is that the meteorite will strike the Earth at a speed of 2.31 x 10²⁰ N·s/m, depending on its mass.

Assuming the meteorite falls in a vacuum and there are no other forces acting on it, it will accelerate as it falls towards the Earth. This acceleration is caused by the gravitational force of the Earth, which is equal to:

F = GMm/r²

where G is the universal gravitational constant, M is the mass of the Earth, m is the mass of the meteorite, and r is the distance between the two objects.At a height of 3.41 x 10⁷ m, the gravitational force can be calculated as follows:

F = (6.67 x 10⁻¹¹) (5.97 x 10²⁴) (m) / (3.41 x 10⁷)2

F = 6.64 x 10¹⁴ N

This is the force causing the acceleration of the meteorite.

The acceleration can be calculated using Newton's Second Law, which states that the force is equal to the mass times the acceleration.

F = ma

Solving for a, we get:

a = F/m

Plugging in the values we calculated above, we get:

a = (6.64 x 10¹⁴ N)/m

By the time the meteorite reaches the surface of the Earth, it will have accelerated to a velocity equal to the integral of the acceleration over time. This can be expressed as follows:

v = ∫a dt

This integral can be solved using the equation for acceleration we derived above:

v = ∫(6.64 x 10¹⁴ N/m)dt

Solving for v, we get:

v = (6.64 x 10¹⁴ N/m)t

At the surface of the Earth, the time since the meteorite was at a height of 3.41 x 10⁷ m is equal to:

t = (3.41 x 10⁷ m)/(9.8 m/s²)

t = 3.48 x 10⁵ s

Plugging this into our equation for velocity, we get:

v = (6.64 x 10¹⁴ N/m)(3.48 x 10⁵ s)

v = 2.31 x 10²⁰ N·s/m

Finally, we can convert this to speed by dividing by the mass of the meteorite:

v = (2.31 x 10²⁰ N·s/m)/m

So, the answer is that the meteorite will strike the Earth at a speed of 2.31 x 10²⁰ N·s/m, depending on its mass.

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The new electrostatic force will be 384 units.  

The electrostatic force of attraction between two charges \(q_{1} \\\)(charge of object 1)  and \(q_{2}\)(charge of object 2) separated by a distance d is given by

\(F = \frac{q_{1} q_{2}}{4\pi E_{0} d^{2} } \\\)

\(E_{0} = 8.854 * 10^{-12} C^{2} N^{-1} m^{-1}\) is the permittivity of free space.

Initially, we have,

\(\frac{q_{1} q_{2}}{4\pi E_{0} d^{2} } =F_{1} = 8 units\)  

Now, if the charge of object 1 is multiplied by 1, the charge of object 2 is multiplied by 3, and the distance separating objects 1 and 2 is divided by 4, we have, \(q_{1} =q_{1}, q_{2} =3q_{2} , d=\frac{d}{4}\).

The new electrostatic force will be,

\(F_{2} = \frac{q_{1} 3q_{2}}{4\pi E_{0} (\frac{d}{4} )^{2} } \\\\\) units.

We have, \(F_{1} = 8 units= \frac{q_{1} q_{2}}{4\pi E_{0} d^{2} } \\\)

Hence,

\(F_{2} =\frac{8*3}{(\frac{1}{4}) ^{2} } units= 384 units.\)

Hence, the new electrostatic force will be 384 units.

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Answer:

2 minutes 20 seconds

Q. Seismic station A is 5000 kilometers from the epicenter. What is the difference between the arrival time of the first P-wave and the arrival time of the first S-wave recorded at this station? answer choices 2 minutes 20 second

Explanation:

Answer:

50 Watts

Explanation:

Power = work / time = 3000J / 60 seconds

Answer:

vB' = 0.075[m/s]

Explanation:

We can solve this problem using the principle of linear momentum conservation, which tells us that momentum is preserved before and after the collision.

Now we have to come up with an equation that involves both bodies, before and after the collision. To the left of the equal sign are taken the bodies before the collision and to the right after the collision.

\((m_{A}*v_{A})+(m_{B}*v_{B})=(m_{A}*v_{A'})+(m_{B}*v_{B'})\)

where:

mA = 0.355 [kg]

vA = 0.095 [m/s] before the collision

mB = 0.710 [kg]

vB = 0.045 [m/s] before the collision

vA' = 0.035 [m/s] after the collision

vB' [m/s] after the collison.

The signs in the equation remain positive since before and after the collision, both bodies continue to move in the same direction.

\((0.355*0.095)+(0.710*0.045)=(0.355*0.035)+(0.710*v_{B'})\\v_{B'}=0.075[m/s]\)

Answer:

The first one is Earths Tilt on its axis

Answer:

Use IGG Games or get money.

Explanation:

Answer:

Go to Undertale.com and buy it

Explanation:

sorry i don't really know how to answer this

Answer:

It is because some of the heat is lost in the surroundings.

Explanation:

To calculate the specific heat of the metal, the following steps are performed.

Take a piece of metal whose mass and the initial temperature is known.

Now take a beaker filled with some measured amount of water and the temperature of water is known.

Drop the heated metal piece in the water so that the equilibrium is reached.

According to the principle of calorimetery,

Heat lost by the metal = heat gained by the water

here, some of the heat is lost in the surroundings so we don't get the correct value of the specific heta of the metal.

Answer:

The answer is 4

Explanation:

The direction angle—or direction, for short—is the angle the vector forms with the positive direction on the x-axis. The angle θA is measured in the counterclockwise direction from the +x-axis to the vector ((Figure))

Answer:

A

Explanation:

Because i used google and it gave me both of the answers in like 5 seconds

Answer: \(1.4\ \Omega\)

Explanation:

Given

Cross-sectional area \(A=0.7\ mm^2\)

Resistivity \(\rho =4.94\times 10^{-4}\ \Omega-mm\)

Length of wire \(l=2\ m\ or\ 2000\ mm\)

Resistance is given by

\(\Rightarrow R=\dfrac{\rho l}{A}\\\\\text{Insert values}\\\\\Rightarrow R=4.9\times 10^{-4}\times \dfrac{2000}{0.7}\\\\\Rightarrow R=1.4\ \Omega\)

A moving object's kinetic energy is inversely correlated with its mass and inversely correlated with the square of its speed.

If all other variables are maintained constant, mass and kinetic energy have a positive relationship, which indicates that as mass grows, kinetic energy increases. Accordingly, an object with the same mass and speed as another object will have twice the kinetic energy, and another object with the same mass and speed as another object will have four times the initial kinetic energy.

It is more difficult to move and stop heavier objects (i.e., items with more mass). Greater mass, or heavier items, resist change more than lighter ones do. Using a bicycle or a Cadillac while being pushed, or stopping them once they are moving. The difficulty of starting or stopping an object increases with its mass (or inertia).

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Answer:

Understanding patterns is important for human development because it allows us humans to make more Educated guesses in life. It allows the human brain to strengthen its logical thinking.

Explanation:

For example: A baby will occasionally learn to roll over or crawl through time. The pattern of doing such things allows the baby to learn more from its actions to make new ones.

I hope this helped im new but want to help :)  

===============================================

The force is F = 530 newtons.

The acceleration of gravity on earth is approximately 9.8 m/s^2, so a = 9.8

Use Newton's second law to find m

F = m*a

530 = m*9.8

9.8m = 530

m = 530/9.8

m = 54.0816326530612

m = 54

The mass is about 54 kg.

Answer:

around 53-54

Explanation:

the gravitational pull is almost 10 (9.807 m/s²) so as long as the numbers are not that big its easy and mostly accurate to divide by 10

If  you are standing 0.50 m in front of a lens that projects an image of you onto a wall 2.7 m on the other side of the lens the focal length of the lens is approximately 0.42 meters.

To find the focal length of the lens, we can use the lens formula:

1/f = 1/u + 1/v

Where:
f = focal length of the lens
u = object distance (distance between the object and the lens)
v = image distance (distance between the image and the lens)

Given:
u = 0.50 m (you are standing 0.50 m in front of the lens)
v = 2.7 m (the image is projected onto a wall 2.7 m on the other side of the lens)

Now, we can plug the values into the lens formula:

1/f = 1/0.50 + 1/2.7

To solve for f, first find the sum of the two fractions:

1/f = (2.7 + 0.50) / (0.50 * 2.7)
1/f = 3.2 / 1.35

Now, take the reciprocal of both sides to get the focal length:

f = 1.35 / 3.2
f ≈ 0.42 m

So, the focal length of the lens is approximately 0.42 meters.

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Answer:

The penny would take 10 seconds to fall.

Explanation:

Hope this helps!!

If a penny is dropped from a building that is 95 m tall then it would 3.111 seconds take the penny to hit the ground below

There are three equations of motion given by  Newton

The first equation is given as follows

v = u + at

the second equation is given as follows

S = ut + 1/2×a×t²

the third equation is given as follows

v² - u² = 2×a×s

Keep in mind that these calculations only apply to uniform acceleration.

As given in the problem, A penny is dropped from a building that is 95 m tall,the initial velocity of the penny is zero, the acceleration acting is due to the acceleration due to gravity

height of the building (S) = 95 meters

initial velocity(u) = 0 m/s

acceleration(a) = 9.81 m/s²

By using the second equation of motion given by newton

S = ut + 1/2at²

S = 95 m ,u= 0 m/s , a= 9.81 m/s² and t =? seconds

95 = 0 + 9.81t²

t² = 95/9.81

t = 3.111 seconds

Thus, if a penny is dropped from a building that is 95 m tall then it would   take 3.111 seconds for the penny to hit the ground below

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Answer:.pi/15 cm/s (approx .2094395 cm/s)

Explanation:

Use 2 as your radius which will make the circumference of the clock equal to 4 pi (remember the formula for circumference is pi * diameter)

Using the circuference we can use the formula Speed = distance/Time and plug in our numbers

4pi / 60 seconds = .2094395 cm/s or .002094395 m/s