A sheet metal screw holding a metal body panel has pierced the insulation of a power wire and is touching the copper strands. this is known as a:_________

Answer:

a) true

Explanation:

True, the depth of the troposphere over Ecuatorian regions is about 18 kilometers and 17 kilometers in the middle latitudes, whereas it is just 6 kilometers over the polar regions.  

12°C is equal to 53.6°F. Celsius (°C) and Fahrenheit (°F) are both temperature scales used to measure the same physical quantity, temperature.

To convert 12°C to Fahrenheit, use the following formula:

°F = (°C x 9/5) + 32

Plugging in 12°C:

°F = (12 x 9/5) + 32 = 53.6°F

So, 12°C is equal to 53.6°F.

Celsius (°C) and Fahrenheit (°F) are both temperature scales used to measure the same physical quantity, temperature. The Celsius scale is based on the metric system and is used primarily in scientific applications and in most countries around the world. It defines the freezing point of water as 0°C and the boiling point of water as 100°C.

The Fahrenheit scale, on the other hand, is used mainly in the United States and its territories. It defines the freezing point of water as 32°F and the boiling point of water as 212°F. The Fahrenheit scale was defined by a physicist named Daniel Gabriel Fahrenheit in the early 18th century.

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Given, the mass of the sample = 433 kg. We need to find the mass of the sample in milligrams (mg).

1 kilogram (kg) = 1,000,000 milligrams (mg)

Therefore,

Mass of the sample in mg = 433 × 1,000,000 mg = 4.33 × 10^8 mg.Hence, the answer is an option (e) 4.33 × 10^8 mg.

The conversion factor between kilograms and milligrams is 1 kg = 1,000,000 mg. Therefore, to convert the mass of the sample from kilograms to milligrams, we simply multiply it by 1,000,000.

433 kg × 1,000,000 mg/kg = 433,000,000 mg

To express the result in scientific notation, we write it as 4.33 × 10^8 mg.

Option (e) is the correct answer.

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Binomial distribution refers to a probability distribution of discrete random variables. The binomial probability distribution depends on the number of experiments that were conducted within a fixed time period.

Shinedown Classical’s singer learned from long experience that the probability that a mic accident will occur while he is singing a song is 0.40. During one hour, the singer sings 5 songs.

Find the graph of the binomial probability distribution that shows the probabilities that 0,1,2,3,4, or all 5 songs experiencing mic outages.Binomial distribution formula .

The probability of getting r successes from n trials is given by;$$\text{P}(r) = \binom{n}{r}p^r(1-p)^{n-r}$$where n = number of trials, r = number of successes, p = probability of success, and 1 - p = probability of failure. In this case, q = 0.40, p = 1 - q = 0.60, and n = 5. Hence, the probability of having r mic outages while the singer sings 5 songs is given by:$$\text{P}(r) = \binom{5}{r}(0.60)^r(0.40)^{5-r}

We can then determine the probability of having 0, 1, 2, 3, 4, and 5 mic outages as follows;For r = 0, P(0) = (5 choose 0) × (0.60)⁰ × (0.40)⁵ = 0.01024For r = 1, P(1) = (5 choose 1) × (0.60)¹ × (0.40)⁴ = 0.07680For r = 2, P(2) = (5 choose 2) × (0.60)² × (0.40)³ = 0.23040For r = 3, P(3) = (5 choose 3) × (0.60)³ × (0.40)² = 0.34560For r = 4, P(4) = (5 choose 4) × (0.60)⁴ × (0.40)¹ = 0.25920For r = 5, P(5) = (5 choose 5) × (0.60)⁵ × (0.40)⁰ = 0.07776These values can then be used to plot a graph of the binomial probability distribution. The graph will show the probability of each possible number of mic outages in the five songs.

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Answer:

B. speed changes

Explanation:

As a light beam goes from air to glass, refraction occurs making it slow down, meaning the speed changes.

Answer:

the inner regions of antarctica gets only about 2 inches of precipitation per year. the winds here blow up snow from the land and put it into the atmosphere, which is part of the water cycle. and the sun helps out, too, causing sublimation to occur, which causes snow to evaporate directly into water vapor gas.

Explanation:

good luck, hope this helps :)

have a nice day !!    

When parking next to the left curb of a one-way street, facing uphill, you should point your front wheels to the right.

The purpose of pointing the front wheels in a specific direction when parking on a hill is to prevent the vehicle from rolling into the street in case the parking brake fails. In this situation, with the vehicle facing uphill, gravity acts to pull the vehicle downhill.

By pointing the front wheels to the right (towards the curb), the wheels will contact the curb if the vehicle starts to roll, acting as a physical barrier to prevent further downhill movement.

When the front wheels are turned to the right, the vehicle's weight will rest on the curb and prevent it from rolling down the hill. This position provides an additional level of safety by utilizing the curb as a stopping mechanism. It is important to engage the parking brake in conjunction with the proper wheel positioning to ensure the vehicle remains secure and stationary while parked on an incline.

By following this practice, you can help prevent accidents and ensure the safety of pedestrians and other vehicles on the road.

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Answer: Polish creates a thin layer of wax on the surface of the leather which protects the leather from getting wet and undergoing wear and tear. It also has a lubricating effect on the leather keeping it supple and preventing the leather from drying out and cracking

Answer:

c. The smallest part of helium

Water molecule \(\rm (H_2O)\) is not an example of an atom. Two hydrogen atoms (H) bond with one oxygen atom (O) to make the chemical. Therefore, the correct option is A.

The fundamental unit of matter is the atom, which is composed of an electron-orbiting nucleus containing protons and neutrons. It is the smallest, indivisible unit of an element and it still has all of its original chemical properties.

Options B and C, on the other hand, give a detailed description of specific chemical elements such as oxygen and helium, which are examples of atoms. The fundamental building block of an element is an atom, which is made up of an electron-bound nucleus (which consists of protons and neutrons).

Therefore, the correct option is A.

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Answer:

\(\boxed{0}\)

Explanation:

Momentum is the measure of mass in motion.

\(\sf momentum = mass \times velocity\)

An object at rest has a velocity of 0.

\(p=mv\)

\(p = 25 \times 0\)

\(p=0\)

The momentum of an object at rest is always 0.

The rope is approximately 6.37 meters above the surface of the Earth.

The circumference of the Earth is 40 million meters (4 x 10⁷ m). By adding 10 meters (10 m) of extra rope evenly distributed around the Earth, the total length becomes 40,000,010 meters (4 x 10⁷ m + 10 m).

When this longer rope is raised up evenly by 40 million minions, the additional length is evenly distributed along the entire circumference.

To find the height of the rope above the surface, we divide the additional length (10 m) by the circumference of the Earth (40 million meters) and multiply by the radius of the Earth (which is half the circumference). Mathematically, the calculation is as follows:

Height = (Additional length / Circumference) x Radius

Height = (10 m / 4 x 10⁷ m) x (40 million meters / 2π)

Simplifying the equation, we get:

Height ≈ 6.37 meters

Therefore, the rope is approximately 6.37 meters above the surface of the Earth.

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By adding 10 meters to a rope wrapped tightly around the Earth's circumference of 40 million meters, and distributing it evenly, the rope would be elevated about 6.37 meters above the Earth's surface.

The circumference of the Earth is 40 million meters (4 x 10⁷ m). By adding 10 meters (10 m) of extra rope evenly distributed around the Earth, the total length becomes 40,000,010 meters (4 x 10⁷ m + 10 m).

When this longer rope is raised up evenly by 40 million minions, the additional length is evenly distributed along the entire circumference.

To find the height of the rope above the surface, we divide the additional length (10 m) by the circumference of the Earth (40 million meters) and multiply by the radius of the Earth (which is half the circumference). Mathematically, the calculation is as follows:

Height = (Additional length / Circumference) x Radius

Height = (10 m / 4 x 10⁷ m) x (40 million meters / 2π)

Simplifying the equation, we get:

Height ≈ 6.37 meters

Therefore, the rope is approximately 6.37 meters above the surface of the Earth.

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Answer:

When the ball goes down its mechanical energy is conserved, ust before touching the ground all the energy is kinetic

When the ball touches the floor, energy has been converted into potential and heat, by the deformation of the ball.

Explanation:

When the ball goes down its mechanical energy is conserved, this is the power energy due to the height it is converted into kinetic energy to medicad that falls, just before touching the ground all the energy is kinetic.

When the ball touches the floor, the kinetic energy is not conserved, but if we define a system formed by the ball and the floor, the amount of movement is conserved, this being an inelastic shock, because the bla and the floor are stuck, so which energy has been converted into potential and  energized and heat by the deformation of the ball.

   Consequently all the mechanical energy that the ball brings before reaching the ground was converted into potential energy and heat during the crash.

The ball of dough does not rebound after it hits the ground because its kinetic energy store decreases, ie; most of its kinetic energy is transferred to the surroundings as thermal energy and sound energy.

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Answer:

57.885.8 kg   weight of the container

Explanation:

The volume of the balloon * density of water = buoyant force of balloon

 volume of a sphere = 4/3 pi r^3

                                   = 4/3 pi * (1.5)^3 = 14.14 m^3   <===balloon volume

Now,   find the buoyant force on the container ALONE ....

             5.8 * 2.6 * 2.8  * 1027  = 43 364  kg   <=====  buoyant force

Now add the buoyant force of the balloon to find the weight

             43 364  +   14.14 * 1027 = 57885.8   kg

Air masses contribute to the formation of air fronts because air masses are large bodies of air that have similar characteristics in terms of temperature, humidity, and stability.

When two air masses with different characteristics come into contact, they form a boundary known as an air front. The characteristics of the two air masses determine the type of air front that forms.

There are four types of air fronts: cold fronts, warm fronts, stationary fronts, and occluded fronts.

Air masses play a significant role in the formation of air fronts because they determine the characteristics of the air mass that will form at the boundary between the two air masses. This, in turn, determines the type of air front that will form and the type of weather that will result. For example, a cold, dry air mass coming into contact with a warm, moist air mass will likely result in a cold front and a period of heavy precipitation.

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Answer:

a little energy is lost every time an energy transformation occurs

The energy can change its form, but the system always has the same amount of energy. Therefore, option (2) is correct.

According to this law, energy can only be transformed from one to another and can neither be created nor destroyed. Energy occurs in nature in several forms such as heat, electricity, nuclear energy, chemical energy, and so on.

When all forms of energy are considered, the total energy of an isolated system remains constant. This law of energy applies to all kinds of energy.

In an isolated system, if there is a loss of energy in one area like the cosmos, there will be a gain of energy in another section of the universe. There is no known case in which the principle of energy conservation is violated.

In mechanics, the three fundamental quantities are conserved and they are energy, momentum, and angular momentum. A little amount of energy is lost an energy transformation occurs although this energy doesn't actually disappear, it converts into other forms that are not useable.

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Given data

*The weight of the box is W = 500 N

*The distance of the plank from the fulcrum is d = 5 m

*The given force at a distance from the fulcrum is D = 10 m

The minimum force is required to lift the box is given by the net torque as

Substitute the known values in the above expression as

Hence, the minimum force is required to lift the box is F = 250 N

When striking two tuning forks with frequencies of 340 Hz and 342 Hz, we will hear beats, which are periodic variations in sound intensity. The beat frequency can be calculated by taking the absolute difference between the two frequencies, resulting in a beat frequency of 2 Hz.

When two sound waves of slightly different frequencies interfere with each other, they produce beats. Beats occur due to the superposition of waves with similar amplitudes and slightly different frequencies. In the case of sound waves, our response depends on the frequency of the waves.

The beat frequency corresponds to the difference between the frequencies of the two tuning forks.

Beat frequency = |frequency1 - frequency2|

Beat frequency = |340 Hz - 342 Hz|

Beat frequency = 2 Hz

Striking tuning forks with frequencies of 340 Hz and 342 Hz will result in the perception of beats with a frequency of 2 Hz. This phenomenon occurs due to the interference of sound waves with slightly different frequencies. In contrast to electromagnetic waves, where our response depends on factors like amplitude and wavelength, our perception of sound depends primarily on the frequency of the waves.

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The centrifugal force C = mv^2/r = kq^2/r^2 = P centripetal force. m is the electron mass, q are the proton and electron charges (opposites), and r is the Bohr radius.

Thus 1/2 mv^2/r = 1/2 kq^2/r^2 and KE = 1/2 mv^2 = 1/2 kq^2/r = 1/2 PE

Therefore KE/PE = 1/2, no matter what state the electron is in.

The interplanar spacing, or d-spacing, for the (111) planes can be calculated using the formula for cubic crystal systems. The d-spacing is determined by the lattice parameter, which depends on the specific crystal structure and lattice type.

Calculation:

For cubic crystal systems, the formula for calculating the d-spacing for the (hkl) planes is given by:

d = a / √(h^2 + k^2 + l^2)

For the (111) planes, the values of h, k, and l are all 1.

Substitute the values into the formula:

d = a / √(1^2 + 1^2 + 1^2)

Simplify the expression:

d = a / √3

The interplanar spacing, or d-spacing, for the (111) planes is equal to a divided by the square root of 3, where a represents the lattice parameter of the specific crystal structure.

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The  answer is +50Ns,

Impulse equals force (final time – initial time)

impulse = f *  Δt

I = is a symbol for an impulse.

F = is a symbol for an object's force.

t = denotes the passage of time.

Due to the fact that the impulse is a measurement of how much the momentum alters as a result of a force acting on it over time. Derivation of Impulse: Impulse = p = p final - p initial .P refers to the momentum change.the final momentum is denoted by p final.the initial momentum is denoted by p initial .The formula's connection between impulse and an object's change in momentum is its most notable feature. Additionally, impulse can be measured in either kilogram meters per second (kg m/s) or Newton second.

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the two players will move off together to the left at a speed of 0.12 m/s.

To find the momentum of each player, we use the formula:
momentum = mass x velocity
For the first player (90 kg, 6 m/s to the right):
momentum = 90 kg x 6 m/s = 540 kg*m/s to the right
For the second player (80 kg, 7 m/s to the left):
momentum = 80 kg x (-7 m/s) = -560 kg*m/s to the left
Now we need to use the law of conservation of momentum, which states that the total momentum of a closed system remains constant. In this case, the two players collide and stick together, so we can treat them as a single system.
Before the collision, the total momentum is:
540 kg*m/s to the right (player 1) + (-560 kg*m/s to the left) (player 2) = -20 kg*m/s to the left
After the collision, the total momentum must still be -20 kg*m/s to the left. Let's assume that the two players move off together in the same direction, and call their combined mass M and their combined velocity v. Then:
momentum = M x v
We can write two equations based on conservation of momentum and conservation of mass:
(1) 540 kg*m/s + (-560 kg*m/s) = M x v
(2) 90 kg + 80 kg = M
Solving equation (2) gives M = 170 kg. Substituting into equation (1) and solving for v gives:
v = (-20 kg*m/s) / (170 kg) = -0.12 m/s to the left

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The relative velocity of the two monkeys is 8.568m/s.it overtakes and grabs onto a 6.20-kg monkey also moving east on a second vine. the first monkey is moving at 10.2 m/s at the instant it grabs the second.

The relative velocity of an object to another item is its speed in respect to that object. It is a measurement of the relative speed of two moving objects. Because it clarifies how objects move and interact with one another, relative velocity is significant in physics.

Given;

mass of first monkey = 5.2 kg

mass of second monkey = 6.2 kg

speed of first monkey = 10.2 m/s

speed of second monkey = 7.20 m/s

by conservation of momentum

initial momentum = final momentum

5.2 * 10.2 + 6.2 * 7.2 = (5.2 + 6.2) * v

v = 8.568 m/s

their common speed = 8.568 m/s

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Answer: velocity

Explanation: Acceleration = change in velocity / time interval

5m/s to 25 m/s, in 2 seconds. So 25m/s - 5 m/s, then divide by time =

10m/s squared

The buoyant force acting on the block is 58.8 N.

The dimensions of the block are given as 0.10 m, 0.20 m and 0.30 m.

The volume of the block will be = 0.10 × 0.20 × 0.30 m³

                                                     = 0.006 m³

We know that,

W = mg                                 .....(1)

where,

W = weight of the block

m = mass of the block

g = acceleration due to gravity = 9.8 m/s²

We also know that mass is proportional to density and volume

m = ρ.V                                  .....(2)

Substituting the equation (2) in (1)

W = ρ.V.g                               .....(3)

Density of water, ρ = 1000 kg/m³

Force is the net weight acting on the block

F = W = ρ.V.g

F = 1000 × 0.006 × 9.8

F = 58.8 N

Therefore, the buoyant force acting on the block is 58.8 N.

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Answer:

Minimum uniform acceleration in Km/hr² is 20,505.05 km/hr²

Explanation:

In other to determine the acceleration, we can use the formula below

acceleration = velocity/time

Time wasn't given in the question, hence we calculate for time using the parameters given and the formula below

Velocity= distance/time

time = distance/velocity

distance = 2000m ⇔ 2km

time = 2/203

time = 0.0099

Hence, we look for acceleration

which is

acceleration = 203/0.0099

= 20,505.05 km/hr² ⇔ 2.0 × 10⁴

Global Conveyor Belt is constantly moving system of deep-ocean circulation driven by temperature and salinity; moves water around the Earth.

The deep-ocean circulation system known as the "global ocean conveyor belt" is constantly moving, driven by temperature and salinity. The deep-ocean circulation system known as the "global ocean conveyor belt" is constantly moving, driven by temperature and salinity. Water is transported around the world by the huge ocean conveyor. The ocean is not an expanse of still water. The ocean is like a giant conveyor belt that is constantly in motion. The "global conveyor belt" is a system of currents that is driven by the hermohaline circulation. In the North Atlantic, close to the pole, the conveyor belt starts at the water's surface. In this location, arctic temperatures chill the water.

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Global Conveyor Belt is constantly moving system of deep-ocean circulation driven by temperature and salinity; moves water around the Earth.

The Global Conveyor Belt is a major driving force behind many of the world's oceanic currents. It is a continuous circulation of deep ocean water, driven by temperature and salinity differences between different parts of the ocean. The Global Conveyor Belt begins in the northern Atlantic Ocean, where a combination of factors create a strong surface current. This current carries warm, salty water from the Gulf of Mexico and the Caribbean Sea northward, where it cools and sinks to form a deep current that flows back towards the equator. This deep current is then joined by a cold, low-salinity current from the Antarctic region, creatig na continuous circulation of deep ocean waters around the globe.

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Answer: The time, t, is approximately 1.57 seconds

Explanation:

The data we have from the question;

Displacement = 2.0 meters

Acceleration due to gravity on the moon = 1.62

Initial velocity = 0 m/s

We can use the second equation of motion for this one;

S = ut + 1/2at²

Where:

- S is the displacement.

- u is the initial velocity.

- a is the acceleration.

- t is the time measured in seconds.

We are now ready to substitute;

2 = 0(t) + 1/2(1.62)t²

==> 2 = 0 + 0.81t²

==> 2/0.81 = 0.81t²/0.81

==> \(\sqrt{2.47}\) = \(\sqrt{t ^{2}\)

==> The time, t, is approximately 1.57 seconds

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