Write down any four points that should be considered during household wiring

Answer:

:)

Explanation:

Answer:

See below

Explanation:

Kinetic Energy = 1/2 * m * v^2

                        = 1/2 * 200 * (15)^2 = ________ joules

The kinetic energy of the 200 kg object moving with a speed of 15 m/s is 11250 Joules (J).

Given:

Mass of the object (m) = 200 kg

Speed of the object (v) = 15 m/s

For the kinetic energy (KE) of an object, we use the formula:

KE = (1/2) × m × v²

where:

KE is the kinetic energy,

m is the mass of the object,

v is the speed of the object.

The kinetic energy of the object:

KE = (1/2) × 200 × (15 )²

KE = (1/2) × 200 × 225

KE = 11250

KE = 11250 Joules (J)

Therefore, the kinetic energy of the 200 kg object moving with a speed of 15 m/s is 11250 Joules (J).

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According to the information we can infer that the travel angle is called a "drag" angle.

In welding terminology, the travel angle refers to the angle between the axis of the electrode and the workpiece surface. When the top of the electrode leads the welding end (meaning the electrode is inclined downward at an angle) and the welding arc is pointing back toward the weld bead, it is known as a "drag" angle.

In this configuration, the electrode is dragged along the surface of the workpiece, creating a trailing arc direction. This technique is commonly used in certain welding processes, such as shielded metal arc welding (SMAW) or stick welding, to control the heat input and the direction of the molten metal flow during the welding operation.

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The principle of cause and effect is applied in every life as is seen in damage caused to cells by exposure to large amounts of ultravoilet rays.

Cause and effect refers to the principle in which for every effect received or observed, an underlying cause is present.

Based on cause and effect;

Cells can repair small amounts of damage caused when a person is exposed to large amounts of gamma rays.

If a certain amount of exposure time in the sun is dangerous for adults, would result in a similar damage to a child.

A lot of sun exposure over time will cause an individual to develop a high risk of cell damage just as a shorter exposure time to X-rays gives the same risk.

Ultraviolet light can damage a cell especially with over 5 minutes of exposure to UVB light.

New vaccine studies are sometimes tested on pigs because humans have an immune system very similar to pigs.

Therefore, cause and effect is applied in every activities.

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Answer:

 freezing melting sublimating  x y

 x and

Explanation:

To drop a table of states of matter the best headings must be

table name: matter state

    freezing melting sublimation x y

This order goes from the solid state to the gaseous state, which is obtained by introducing heat into the system

Answer: D on edge

X: Heat Is Absorbed

Y: Heat Is Released

Explanation:

sublimation and melting are both absorbing heat(aka getting warmer)as they change state while freezing and deposition are releasing heat(aka getting colder)as they change state

A 1000.0 kg car is moving at if a truck has 18 times the kinetic energy of the car. The truck is moving 12 times faster than the car.

To solve this problem, we need to use the formula for kinetic energy:

KE = 0.5 * m * v^2

where KE is the kinetic energy, m is the mass, and v is the velocity.

For the car, we have:

KE_car = 0.5 * 1000.0 kg * v_car^2

For the truck, we have:

KE_truck = 0.5 * m_truck * v_truck^2

We know that the truck has 18 times the kinetic energy of the car, so:

KE_truck = 18 * KE_car

Substituting the formulas for KE_car and KE_truck, we get:

0.5 * m_truck * v_truck^2 = 18 * (0.5 * 1000.0 kg * v_car^2)

Simplifying, we get:

m_truck * v_truck^2 = 18000.0 kg * v_car^2

We also know that the mass of the truck is greater than the mass of the car, so we can assume that the velocity of the truck is also greater than the velocity of the car. Therefore, we can say:

v_truck > v_car

Solving for v_truck, we get:

v_truck = sqrt(18000.0 kg * v_car^2 / m_truck)

We don't know the mass of the truck, but we can simplify the equation by using the fact that the kinetic energy is proportional to the velocity squared:

KE_car / KE_truck = v_car^2 / v_truck^2

Substituting the values, we get:

1 / 18 = v_car^2 / v_truck^2

Multiplying both sides by v_truck^2, we get:

v_truck^2 = 18 * v_car^2

Substituting this into the equation for v_truck, we get:

v_truck = sqrt(18000.0 kg / 1000.0 kg) * v_car

v_truck = 12 * v_car

Therefore, the truck is moving 12 times faster than the car.

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the velocity of the wave is 400m/s

The formula for the velocity of the wave is, V = w/k

where ,  w is the coefficient of t and k is the coefficient of x

now putting values we get, v = 200/0.5 = 400

Hence the velocity of the wave is 400 m/s

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The speed of the car at the first point is 18 m/s.

How do we calculate the initial speed?

The equation we can be used for finding the speed of the first point is:

         ⇒ Δx = ½ (v + v₀)t

From this we can easily calculate v₀ i.e,

        ⇒ v₀ = 2Δx/t - v

According to the question it is given that,

Distance between two points is , Δx =120 m,

Time t = 8.0 s,

Speed at second point is, v = 12 m/s,

Speed at first point is, v₀ = ?

From above formula,

 ⇒  v₀ = 2Δx/t - v

           = 2×120/8 - 12

           = 240-96/8

           = 144/8

           = 18 m/s

Therefore the speed at first point is 18 m/s.

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Answer:

1. a

2. a [im iffy on this but 95% positive its this]

3. b [walking is a form of aerobics, so i would say b]

Explanation:

The new freezing point of the solution is -5.3 °C.

To calculate the new freezing point of the solution, we can use the formula:

ΔTf = Kf * m

Where:

ΔTf is the change in freezing point

Kf is the molal freezing point depression constant

m is the molality of the solution

First, let's calculate the molality (m) of the solution:

Molar mass of C6H14 = (6 * 12.01 g/mol) + (14 * 1.01 g/mol) = 86.18 g/mol

Moles of C6H14 = 0.25 moles

Mass of water = 100 grams

Molality (m) = moles of solute/mass of solvent in kg

           = 0.25 moles / 0.100 kg

           = 2.5 mol/kg

Now, we can calculate the change in freezing point (ΔTf):

ΔTf = Kf * m

    = 2.12 °C/m * 2.5 mol/kg

    = 5.3 °C

The new freezing point of the solution can be obtained by subtracting the ΔTf from the freezing point of pure water, which is 0 °C:

New freezing point = 0 °C - 5.3 °C

                  = -5.3 °C

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The time elapsed when the ball reaches the window is 1.55s

As per the question:

Final velocity, v = 11 m/s

Height, h = 29m

Acceleration, a = g = -9.8 m/s

From the third equation of motion:

v² = u² +2as

u² = v² - 2as

u² = (11)² - 2 × (-9.8) × (29)

u² = 689.4

u = √689.4

u = 26.25 m/s

Now, from the first equation of motion:

v = u + at

\(t=\frac{v-u}{-g}\)

\(t = \frac{11 -26.25}{-9.8}\)

t = 1.55 s

Therefore, the time elapsed when the ball reaches the window is 1.55s.

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Genevieve works for a company that manufactures office furniture. it is her responsibility to source component parts such as casters, laminate, and plastic to make the office furniture. Genevieve works in purchasing.

A business or organization uses the purchasing process to acquire products or services in order to achieve its objectives. Although many organizations make an effort to establish standards for the purchasing process, procedures can differ significantly between organizations.

The major functions of purchasing sector in a business organization includes the following:

Determine the products, materials, and services that the business needs. Find trustworthy vendors to satisfy these needs. Discuss pricing, construction quality, and delivery schedules. Make bid requests on supply contracts and set up the order quantities.

The question is incorrect. The correct question is

Genevieve works for a company that manufactures office furniture. It is her responsibility to source component parts such as casters, laminate, and plastic to make the office furniture. Genevieve works in ______.

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A free body diagram is a diagram that shows the direction of the forces that are acting on a body.

A free body diagram is a diagram that shows the direction of the forces that are acting on a body. We know that force is a vector quantity. This implies that the magnitude and the direction of a force are equally important when we are dealing with the forces.

Now, in a thug of war, there are two forces that are acting on the rope. The forces acts from the opposite ends in which the rope is being pulled. The rope would move in the direction in which the pulling that is exerted is found to be of greater magnitude.

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Answer:

1 AND 3

Explanation:

Answer:

Explanation:

magnetic field B = (3 i + 8 x 2 j )x 10⁻³ T

= (3 i + 16 j )x 10⁻³ T

L = - i ( unit length of conductor )

Force F = I ( L x B ) , I is current

= 5 [ - i x ( 3i + 16 j ) 10⁻³]

= 5 ( - 16 k ) x 10⁻³

F = - 80 x 10⁻³ k

Inside a freely-falling elevator, there would be no apparent weight for you.So option B is correct.

Inside a freely-falling elevator, there is still a gravitational force acting on you. However, since both you and the elevator are falling at the same rate, you would experience a sensation of weightlessness. Your apparent weight, which is the force exerted on a body due to gravity, would be zero. This is because there is no contact force between you and the elevator floor that would provide a normal force to counteract gravity. Therefore, the correct option is that there would be no apparent weight for you.

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Answer:

66.5 is the answer

Answer:

60V

Explanation:

Given parameters:

Current  = 6A

Resistance  = 10ohms

Unknown:

Voltage  = ?

Solution:

From ohms law we know that:

          V  = IR

V is the voltage

I is the current

R is the resistance

             V  = 6 x 10  = 60V

Ozone is formed when individual oxygen atom combines with an oxygen molecules (option B).

Ozone is an allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two. It is a toxic gas, generated from oxygen by electrical discharge.

Ozone is a highly reactive gas composed of three oxygen atoms. It is both a natural and a man-made product that occurs in the Earth's upper atmosphere (the stratosphere) and lower atmosphere (the troposphere).

Therefore, it can be said that the combination of oxygen molecule i.e. two atoms of oxygen and an individual oxygen atom will form ozone.

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Answer:

Initial x component of velocity: 30m/s

Initial y component of velocity: 0m/s

Explanation:

First, draw a diagram of a cliff and the object falling off the cliff as well as the initial velocity listed and the object at the bottom of the cliff with time. The object is fired horizontally, thus the initial velocity in this case 30m/s equals the horizontal initial velocity, there is no initial vertical velocity.

If the object hits the ground in 2 seconds since horizontal velocity is not affected by any other forces it will move at constant speed horizontally. However, vertically there is a gravitational force acting on the projectile converted from the potential energy of it's height. we know the gravitational constant g=-9.8m/s^2, and we can use the kinematic equation Δy=v0(t)+1/2at^2 to find the Δy(change in height of the projectile), as v0y=0, Δy=1/2at^2, a=9.8m/s^2 and t=2 seconds

thus Δy=19.6m≈20m

hope this helped

The initial X component of velocity when the projectile initially fired is 30m/s. The initial Y component of velocity when the projectile initially fired is 0m/s.

There are three equation of motions that can be used when motion of the object is under constant acceleration and on a straight path.

The vertically there is a gravitational force acting on the projectile converted from the potential energy of it's height.

The gravitational constant g =-9.8m/s^2,

we can use the equation of motion

Δy = v0(t) + 1/2at^2

The initial horizontal velocity of the projectile, Vₓ = 30 m/s

The time of the motion of the projectile, t = 2 s

The horizontal distance traveled by the projectile is given by the range of the projection as;

X = Vₓt

X = 30 x 2

X = 60 m

Thus the horizontal distance traveled by the projectile is 60 m

Hence, The initial X component of velocity when the projectile initially fired is 30m/s. The initial Y component of velocity when the projectile initially fired is 0m/s.

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Answer:

D. 72.1 m^2

Explanation:

6.01m x 12m = 72.12 m^2

The pressure will be different because of the difference in the masses of horse A and horse B.

Horse A will have greater pressure due to much bigger mass.

In order for a horse to survive and operate, its hooves are necessary. Throughout a horse's lifetime, its hooves expand. Each foot of a horse has a single, solid hoof. The size of this might vary according on the breed, size, and running and jumping prowess of the horse.

Scholars have long disagreed on how animals—whose predecessors were dog-sized creatures with three or four toes—came to have only one hoof. According to a recent research, when horses grew bigger, one big toe was shown to be more resistant to bone stress than several smaller toes.

Thus, horse A will have greater pressure due to much bigger mass.

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The mass of the Skater is 50 Kg.

We have a skater who is under the influence of 30 Newton of force.

We have to determine the mass of skater.

Newton's second law of motion states that the rate of change of momentum is directly proportional to the force applied. Mathematically-

\($F\;\alpha \; \frac{dp}{dt}\)

According to the question, we have -

Force on Skater -  30 N

Acceleration Produced -  0.6 \(m/s^{2}\)

We know -

F = ma

30 = m x 0.6

m = 30/0.6 = 50 Kg

Hence, the mass of the Skater is 50 Kg

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Answer:

0.6amp or I= 0.6

Explanation:

V=IR

12V=I(20)

12/20=I

0.6=I

Answer:

0.6amp

Explanation:

Answer:

Magnets work by using Earth's magnetic pull.

Explanation:

Magnets move objects because they are made of steel or metal. And for that reason, they can stick to objects that are metal.

The mass m of the block on the left is 16 Kg , correct answer.

What is friction?

Friction is a force that prevents two solid objects from rolling or sliding over one another. Although frictional forces, such the traction required to walk without slipping, may be advantageous, they can provide a significant amount of resistance to motion.

Think about how a 100 kilogramme block would move.

beginning speed (Vi) = 0 m/s

a stands for speed.

d=displacement=1 m

Time taken is t = 0.53 seconds.

Using the formula:

d=Vi t+(0.5)a t2

1 = (0) (0.53) + (0.5) a (0.53) (0.53)

2

a = 7.12 m/s2

Acceleration for an at wood machine is expressed as

7.12 = (100 - m) (9.8)/ (100 + m)

m = 15.84 kg

m = 16 kg

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When block B is travelling downward at a speed of 10 m/s, block A's velocity vector is (4i + 3j) m/s in the opposite direction.

The force that the block was subjected toThe velocity of block B is sent to block A through the string, assuming the blocks are attached by an inextensible string. The velocity vector of block A will have the same magnitude as that of block B, which is 10 m/s, because the string is inextensible. However, because the string transmits motion in the opposite direction from that of block B, the direction of the velocity vector of block A will be the opposite of that of block B. As a result, block A's velocity vector will be (-4i - 3j) m/s, where the negative signs denote a direction that is the exact opposite of block B's velocity vector.E route is 40 N at point B. Since the only motion that interests us is the radial motion of It is not necessary to understand the frictional characteristics of the block.

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Answer:

Explanation:

The velocity of the car can be found by using the formula

\(v = \frac{p}{m} \\ \)

p is the momentum

m is the mass

From the question we have

\(v = \frac{100}{35} = \frac{50}{7} \\ = 2.857142...\)

We have the final answer as

Hope this helps you

1)  Light energy ----> 2) Electricity ----- > 3)Sound energy

4) Light energy ------> 5) Heat energy ----> 6) Kinetic energy

7) Light energy ----> 8) Chemical energy -----> 9) Kinetic energy

10) Light energy -----> 11) Heat energy

12) Light energy ------> 13) Electrical energy -----> 14) Kinetic energy

We know that energy transformation has to do with the change of the energy from one form to the other. We have to note that from the first law of thermodynamics, it is clear that energy can not be created nor destroyed but it can be transformed from one form to the other.

Now, we have to note that in all the cases that we have below, there is the transformation of energy from one form to the other as shown above.

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