Simple H...
If a mass attached to a vertical spring stretches the spring 2.0 m with a spring
constant of 5 N/m from its original equilibrium position, what is the force acting
on the string?

A conductor is made in the form of a hollow cylinder with inner and outer radii a and b, respectively. It carries a current I, uniformly distributed over its cross section. We are given that

Consider a loop of radius r where r<a

A conductor is an object or kind of material that permits the movement of charge (electric current) in one or more directions. This term is used in both physics and electrical engineering. Metal-based materials are frequently used as electrical conductors. Negatively charged electrons, positively charged holes, and occasionally positive or negative ions flow to create electric current.

It is not essential for one charged particle to move from the component creating the current (the current source) to those consuming it for current to flow within a closed electrical circuit (the loads). Instead, the charged particle only needs to nuzzle its neighbor a limited number of times, and then the process repeats itself until a particle gets nuzzled into the consumer, generating electricity.

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Answer:

D

Explanation:

Answer:

The penguins are gliding foward without stopping because there is no external force changing their state.

Explanation:

Newtons first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

The tension in the string = 83.2 N

Tension is defined as the pulling force transmitted axially by using a string, a rope, chain, or similar object, or by each end of a rod, truss member, or similar 3-D object; tension might also be expressed as the action-reaction pair of forces acting at each end of said elements. Tension is the opposite of compression. All objects in contact with each other exert forces on each other. The best example of pulling force is seen when pulling on a rope. When a pulling force is applied to a rope, it creates considerable tension.

Given,

Mass of object (m) = 0.650kg

Radius of object (r) =  0.5 m

Angular speed (ω) = 8.00 rad/s

T = mω²/r

T = 0.65 × 8²/0.5

T = 83.2 N

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Answer:

\(31.7\:\mathrm{N}\)

Explanation:

We can use basic trig in a right triangle to solve this problem. Let the x component of the force be \(x\). We have the following equation:

\(\cos 24^{\circ}=\frac{x}{34.7},\\x=34.7\cos 24^{\circ}\approx \boxed{31.7}\)

Force(F) = 350 N

Work (W)= 0 J

Apply the formula:

Work = Force x Distance

Isolate distance(d)

Distance = Work/ Force

d = W/F = 0 /350 = 0 m

The distance that the object traveled is 0 (zero)

Answer:

400 meters

Explanation:

using the equation:

Hopefully this helps.

Explanation:

You can simply subtract the atomic number from the mass number in order to find the number of neutrons. If the atom is neutral, the number of electrons will be equal to the number of protons.

Remember!

1. Your mass number is the total number of neutrons and protons within the atom.

2. Your atomic number is the amount of protons within the atom.

3. For neutral atoms, the electron number is the same as the atomic number.

Explanation:

Use Pythagorean theorem:

r² = x² + y²

r² = (-6.46 m)² + (-3.78 m)²

r = 7.48 m

Answer

It can cause the system to increase its output more and more.

It can cause instability as output increases uncontrollably

Answer:

D = 14.31 m

Explanation:

It is given that,

Displacement due east is 12 m

Displacement due north is 5 m

Displacement in vertically upward direction is 6 m

We need to find the magnitude of the sum of these displacements. We know that, vertically upward, east and north are mutually perpendicular direction. So, the resultant is given by :

\(R=\sqrt{12^2+5^2+6^2} \\\\R=\sqrt{144+25+36} \\\\R=14.31\ m\)

So, the magnitude of the sum of these displacements is 14.31 m.

As the diameter of the wire approaches to zero, the resisitance approaches  infinity.

Electrical resistance is the physical capacity of any body to oppose the flow of electric current even when there is an applied potential difference, capacity calculated by Ohm's First Law, and, according to the International System of Units (IS), is measured in ohms.

With that being said, and knonwing that:

R = Resistance; p = Resistivity; L = Length; d = Diameter

It is possible to calculate the resistance of the wire by:

\(R = p\frac{L}{A}\)

Where A is calculated by:

\(A = \frac{\pi d^{2} }{4}\)

Changing in the first formula:

\(R = p\frac{L}{\pi d^{2} } \\\\R = p\frac{4L}{\pi d^{2} }\)

Knowing that when the diameter tends to zero resistance tends to infinity, it is possible to say that resistance of the wire will tend to infinity when the diameter approaches zero.

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Answer:

The resistance approaches infinity.

Explanation:

100% Correct

Answer:

As altitude increases and atmospheric pressure decreases, the boiling point of water decreases.

Answer:

1/2 * 10 kg) * 5 m/s2. or 125 Joules

Explanation:

Answer: B

Explanation:

Displacement is a vector quantity. it is the distance covered in a specific direction.

Whereas, Velocity = displacement/time

Make displacement the subject of formula

Displacement = velocity × time

From the graph, velocity is constant which is equal to 1 m/s

Displacement in the last two seconds will be velocity multiply by 2. Since time = 2s. Therefore,

Displacement = 1 × 2 = 2 m

So, the particle displacement in the last two seconds will be 2 metres

Answer:

The friction between the crate and the floor is the same amount as your pushing force when you push a crate across a level floor at constant velocity.

Explanation:

Remember that the force produced by two surfaces coming into contact and sliding against one another is frictional force. This is expressed by the direct relationship between frictional force and normal force.

f=μN

Where

f = frictional force

µ = coefficient of friction

N = Normal force

By dry friction, two solid surfaces in touch are opposed to one another's relative lateral motion. Dry friction is further separated into kinetic friction between moving surfaces and static friction (sometimes known as "stiction") between non-moving surfaces. Additionally, dry friction is typically caused by the interaction of surface characteristics, particularly rough surfaces.

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Answer:

Gravity

Explanation:

its an invisible force that pulls objects

toward each other.

hope it helps

The two vectors with the largest magnitude when subtracted are A and F. Subtracting A from F will result in the largest difference in magnitude between two vectors.

In physics, a vector is a graphical or mathematical representation of a physical quantity that has both magnitude and direction. For instance, the vector position of a particle in space specifies its location relative to the origin.

The direction of a vector is indicated by an arrow pointing in the direction of the vector's motion. When two vectors are subtracted, the resulting vector is the vector that extends from the end of the vector being subtracted to the end of the vector it is being subtracted from.

If the two vectors have opposing directions, the resultant vector will be the difference between the magnitudes of the two vectors. Here are the vectors given: A -0.12i +0.22jB 0.28i +0.18jC -0.15i -0.14jD -0.05i +0.12jE 0.19i -0.1jF -0.08i -0.25j. To compute the vector magnitude of a vector, we use the formula: |V| = (V₁² + V₂²)¹/²Using this formula, we can compute the magnitudes of the vectors.  

Now, let's calculate the magnitudes of the given vectors: A = (0.12² + 0.22²)¹/² = 0.2488B = (0.28² + 0.18²)¹/² = 0.3246C = (0.15² + 0.14²)¹/² = 0.2108D = (0.05² + 0.12²)¹/² = 0.1312E = (0.19² + 0.1²)¹/² = 0.214F = (0.08² + 0.25²)¹/² = 0.266. Thus, the two vectors with the largest magnitudes will be: A and F.

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Answer:

1.56 seconds.

The rock will take 1.56 seconds to fall.

We have a rock.

We have to determine how long it will take for a rock to fall 12 meters.

The second equation of motion is -

S = ut + 1/2 at²

According to the question -

initial velocity = u = 0 m/s

acceleration = a = 9.8 m/s²

distance = S = 12 meters

Using the second equation of motion -

S = ut + 1/2 at²

12 = 0 + 0.5 x 9.8 x t²

12 = 4.9t²

t² = 2.45

t = 1.56 seconds

Hence, the rock will take 1.56 seconds to fall.

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The equilibrium temperature when equal masses of the first and third liquids are mixed is 24.5°C.

Equilibrium temperature is the temperature at which two or more substances, initially at different temperatures, attain the same final temperature when brought into thermal contact without any heat loss to the surroundings. It represents the state of thermal equilibrium between the substances.

Let the specific heat capacity of the liquids be denoted by C, and the masses of each be m.

For the first mixing, the heat lost by the hotter liquid (36°C) is equal to the heat gained by the colder liquid (13°C). Thus:

C * m * (36 - T) = C * m * (T - 13)

where T is the equilibrium temperature. Solving for T, we get:

T = (36 + 13)/2 = 24.5°C

For the second mixing, we have:

C * m * (T - 22) = C * m * (36 - T)

Solving for T, we get:

T = (22 + 36)/2 = 29°C

Finally, for the mixing of the first and third liquids, we have:

C * m * (T - 13) = C * m * (36 - T)

Solving for T, we get:

T = (13 + 36)/2 = 24.5°C

Therefore, When the first and third liquids are combined in equal masses, the equilibrium temperature is 24.5°C.

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Answer:

Igneous Rock

Sedimentary Rock

Metamorphic Rock

Explanation:

Igneous Formed by lava

Sedimentary Form By other fragmented pieces of rock

Metamorphic rocks that have undergone physical changes  exposed to extreme presure.

Answer:

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.

Explanation:

Answer:

The net force is directed toward the center of the circular path.

Answer:

See the explanation below

Explanation:

The pressure is defined as the product of the density of the liquid by the gravitational acceleration by the height, and can be easily calculated by means of the following equation.

 \(P=Ro*g*h\)

where:

Ro = density of the fluid [kg/m³]

g = gravity acceleration = 9.81 [m/s²]

h = elevation [m]

In this way we can understand that the greater pressure is achieved by means of the height of the liquid, that is, as long as the fluid has more height, greater pressure will be achieved at the bottom.

Therefore in order of decreasing will be  

The largest pressure with the largest height of the liquid, container B. The next is obtained with container D, the next with container A and the lowest pressure with container C.  

The pressure decreases as we go from the container B - D - A - C

Yes, these two objects have different masses.

To calculate the precision of mass we are using the formula,

Precision(P) = \(\frac{m_1}{m_1+\triangle m}\)

Or,\(\triangle\)m=\(\frac{m_1}{P}\)-m₁

For the first case we are given,

m₁= The recorded value of mass

= 128.01 g

P= Precision of the mass

=0.005g

So, according to the formula, \(\triangle\)m will be,

\(\triangle\)m=  \(\frac{128.01}{0.005}\)-128.01

Or,\(\triangle\)m=25,473.99 g

Or,\(\triangle\)m=25.47 Kg

For the first case \(\triangle\)m is 25.47 Kg..

For the second case we are given,

m₁= The recorded value of mass

= 0.13 Kg

P= Precision of the mass

=0.005 Kg

So, according to the formula, \(\triangle\)m will be,

\(\triangle\)m= \(\frac{0.13}{0.005}\)-0.13

Or,\(\triangle\)m= 25.87 kg

For the second case \(\triangle\)m is 25.87 Kg.

For the two cases  \(\triangle\)m has different values, 25.47 Kg≠25.87 Kg.

Therefore we can conclude that, these two objects have different masses.

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The volume of the bubble just before the surface is 4 cm^3.

V1=volume of the initial stage

P2= pressure at the final stage

V2= volume at the final stage

=(1×4)/1

=4cm³

Thus , we can conclude that the volume of the bubble just before the surface of water is 4cm³.

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Answer:

Sunlight allows plants to perform photosynthesis, a process which is required for plant growth and health. ... Plants that are denied sufficient light will eventually lose their color and die. Plants deprived of light will grow upward, stretching their stems more rapidly that usual, searching for light.

Answer:

Sunlight allows plants to perform photosynthesis, a process which is required for plant growth and health. ... Plants that are denied sufficient light will eventually lose their color and die. Plants deprived of light will grow upward, stretching their stems more rapidly that usual, searching for light

Explanation:

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Answer:

When water freezes to form ice, the molecules would be vibrating in place rather than moving round. It is a result of a decrease in the kinetic energy of the molecules of water. It is said that the temperature and the kinetic energy of the molecules is directly proportional which means that when temperature is increased, the kinetic energy of the molecules would increase as well making the molecules move around. However for this case, when we day the system is cooled then it means the temperature is decreased which would result to the decrease of the kinetic energy of the molecules.