What acceleration is produced by a force of
2000 N acting on a person of mass 80 kg?​

The mass of the cube is 0.65768 kg.

The density (d) of a substance is calculated by dividing its mass (m) by its volume (v). Mathematically, the density of the cube is given by: d = m/v

Where, d is density, m is mass and v is volume of the cube.Volume of cube is calculated using the formula:

Volume of cube = length³= (5.95 cm)³= 211.201375 cm³.

Thus, the volume of the cube is 211.201375 cm³.Using the formula of density; we have,

3.11 g/cm³ = m / 211.201375 cm³

We will solve this formula for m:m = d * v = 3.11 g/cm³ * 211.201375 cm³m = 657.68 g or 0.65768 kg (when rounded to 5 decimal places)

Therefore, the mass of the cube is 0.65768 kg.

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Answer:5m/s² well I am not pretty sure but hope it's help

Explanation:

u=0m

final velocity ,v=50m/s

t=10s

(v-u)/t=(50-0)/10=50/10=5m/s²

Answer:

It increases twice the original

Considering the coordinates of the radars as well as the direction of the object in order to determine the object's position in terms of distance and angle. Sincе thе radars arе situatеd at (0,0) and thе sеcond radar is on thе еast sidе of thе first onе, wе can assumе that thе first radar is locatеd on thе x-pivot and thе sеcond radar is locatеd on thе positivе y-hub.

Lеt's say thе objеct is dеtеctеd at coordinatеs (x, y). The objесt's y-coordinativity will be negative and its x-coordinativity positive as it approaches the southern direction in the first quadrant.

We can use the distancе formula to determine the object's diameter from its origin (0, 0):

Distancée = (x + y) 2 The angle can be calculated with trigonometry. The angle can be summarized as:

= arctan(y/x) ii) We must consider the circles of overlap for each radar in order to calculate the overlap from the radar signal intersection in the first quadrant.

Due to the fact that both radars have distinctive overlap and divide the covered area into circles, the overlapped area will be the intersection of these circles.

Thе ovеrlapping arеa can bе calculatеd by finding thе arеa of thе intеrsеction of two circlеs. The formula for the area of the intersection of two circles can be complex and depends on the specific radii and dimensions that exist between the circles' centers.

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The function of sleep theory supported by the illustration is sleep conserves and protects.

From the first sentence, bats sleep a lot because they face little danger from predators and as such, they have a high-calorie diet of insects.

From the second sentence, cows sleep less, because they face more danger from predators and as such, they have a low-calorie diet of insects.

We can conclude that sleep helps to keep animal safe. Therefore, the correct option will be, "Sleep conserves and protects".

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Without knowing the specific values of the resistances and current, we cannot calculate the exact voltage across each resistor.

To find the voltage across each resistor in a parallel circuit, we need to use the formula:

V = IR

Where V is voltage, I is current, and R is resistance. In a parallel circuit, the voltage is the same across all branches, so we can use Ohm's Law to find the current in the circuit, and then use that current to calculate the voltage across each resistor.

Assuming the resistors are equal, each resistor will have half of the total current. So, if the total current in the circuit is I, then the current through each resistor will be

I/2.

Using Ohm's Law, we can then find the voltage across each resistor:

V = IR

Where V is the voltage across the resistor, I is the current through the resistor, and R is the resistance of the resistor.

So, if the total voltage in the circuit is 10 volts, and the resistors are equal, then the voltage across each resistor will be:

V1 = (I/2) * R1

V2 = (I/2) * R2

Where V1 is the voltage across the first resistor, V2 is the voltage across the second resistor, R1 and R2 are the resistances of the first and second resistors, respectively.

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The velocity of the ball does not change in this process because it is moving in a circle at a constant speed. However, the acceleration of the ball is not equal to zero because it is constantly changing its direction.

The acceleration is the rate of change of velocity, and since the ball is changing direction, its velocity must also be changing. This acceleration is known as centripetal acceleration, and it is directed towards the centre of the circle.

This acceleration is necessary to keep the ball travelling in a circle because if it was not there, the ball would travel in a straight line away from the circle. The magnitude of this acceleration is equal to the square of the speed of the ball divided by the radius of the circle.

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There are three factors that affect gravitational potential energy:

Gravitational potential energy is potential energy an object holds when falls towards another object due to gravity.

for instance, if we lift a stone and try to throw it from a height, it will have gravitational potential energy whereas stones in the ground have no gravitational potential energy.

the formula of GPE:  E = mgh where

m = mass, g = gravity and h = height

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Answer:

Around \(1.4\) solar mass.

Explanation:

In a white dwarf, electron degeneracy prevents the star from collapsing into itself. However, if the mass of the star exceeds the Chandrasekhar Limit, gravity would overcome electron degeneracy and star would collapse further.

The value of the Chandrasekhar Limit is approximately \(1.4\; M_{\odot}\) (\(1.4\) times the mass of the sun.) While this mass is the maximum possible mass of a stable white dwarf, the original mass of the star that formed this white dwarf tends to be much greater.

All of the following are properties of water except this that  it is a nonpolar molecule. So, option E is correct.

Following ae the qualities of Water:

1) it is a good solvent.

2) Because of the hydrogen bonds in it, it has a high surface tension.

3) It has high heat capacity 

4) It possesses adhesive and cohesion qualities.

The majority of the time, nonpolar or organic solvents are used to dissolve nonpolar compounds. The charge is symmetrically distributed throughout these molecules.

Water has five key characteristics, including high polarity, high specific heat, high heat of vaporization, low solid density, and attraction to other polar molecules.

Polar molecules include water. Despite having a neutral overall charge, the molecule has two poles due to the orientation of the two positively charged hydrogen atoms (+1 each) at one end and the negatively charged oxygen atom (-2) at the other.

Hydrogen bonds could not develop in water if nonpolar covalent bonds rather than polar covalent bonds were used to create it. Due to the small charge difference between its two ends, water is a covalent polar molecule.

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The tension in the cord is equal to centripetal force which is 32 newton.

We need to know about centripetal force to solve this problem. When an object moves in a circular motion, the object is experiencing centripetal force. The magnitude of centripetal force is

Fc = m . v²/R

where Fc is the centripetal force, m is mass, v is velocity and R is the radius.

From the question, we know that

m = 2 kg

v = 4 m/s

R = 1 m

The tension in the cord is equal to centripetal force

T = Fc

T = m . v²/R

T = 2 . 4² / 1

T = 32 N

Hence, the tension in the cord is 32 newton.

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In part a, the force can be expressed in terms of the person's weight.

The weight of an object is given by the formula:

Weight = Mass × Acceleration due to Gravity

Since the person is in an elevator, the acceleration due to gravity remains the same, which is approximately 9.8 m/s². Therefore, the weight of the person is directly proportional to their mass.

The force experienced by the person in the elevator is equal to the net force acting on them. If the elevator is moving with a constant velocity, the net force is zero, and the person feels their normal weight.

However, if the elevator is accelerating upward or downward, an additional force comes into play. This force is the product of the person's mass and the acceleration of the elevator.

If the elevator is accelerating upward, the force experienced by the person will be greater than their weight:

Force = Weight + (Mass × Acceleration of Elevator)

If the elevator is accelerating downward, the force experienced by the person will be less than their weight:

Force = Weight - (Mass × Acceleration of Elevator)

Therefore, in part a, the force experienced by the person can be expressed as their weight plus or minus the product of their mass and the acceleration of the elevator, depending on the direction of acceleration.

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Answer:

Distance = 2m

Explanation:

Given the following data;

Workdone = 270J

Force = 135N

To find the height (distance);

Workdone = force * distance

Substituting into the equation, we have

270 = 135 * distance

Distance = 270/135

Distance = 2m

Answer:

b

Explanation:

The velocity with which the rock initially kicked if the cliff is 5 m high and the rock lands 7m from the base of the cliff is 6.93 m / s

s = ut + 1 / 2 at²

s = Distance

u = Initial velocity

t = Time

a = Acceleration

In vertical motion,

s = 5 m

u = 0

a = 9.8 m / s²

5 = 0 + ( 1 / 2 * 9.8 * t² )

t² = 1.02

t = 1.01 s

In horizontal motion,

s = 7 m

a = 0 ( Since velocity is constant )

7 = 1.01 u + 0

u = 7 / 1.01

u = 6.93 m / s

Therefore, the velocity with which the rock initially kicked is 6.93 m / s

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When the mass of the cannon increases and the energy of the blast remains the same, the total kinetic energy remains the same.

Kinetic energy refers to the form of energy that an object possesses due to its motion. It is known as the work that's required to move a body.

It should be noted that when there is an increase in the mass of the cannon while the energy of the blast remains the same, then in such a situation, the total kinetic energy will remain the same.

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Answer:

t = S / V = 3.8E8 / 3E8 = 1.3 sec

It takes over 1 second for a radio signal to travel between the earth and the moon.

The current flowing through the 55 watt light bulb is approximately 0.5 amps.

To calculate the current flowing through the light bulb, we can use Ohm’s law, which states that the current (I) flowing through a circuit is equal to the voltage (V) divided by the resistance ®. In this case, we are given the power (P) of the light bulb, which is 55 watts, and the voltage (V) of the circuit, which is 110 volts. Since power is equal to the product of voltage and current (P = V * I), we can rearrange the equation to solve for the current:

I = P / V

Substituting the given values, we have:

I = 55 watts / 110 volts

I ≈ 0.5 amps

Therefore, the current flowing through the 55 watt light bulb is approximately 0.5 amps.

It’s important to note that the power rating of a light bulb (in watts) indicates the rate at which it consumes electrical energy, while the current (in amps) represents the rate at which the electric charge flows through the circuit. In this case, the power rating is used to calculate the current flowing through the light bulb.

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According to the Second Law of Thermodynamics, in order for a reaction to be spontaneous ASuniverse  value must increase,

Option(B)

The Second Law of Thermodynamics states that the total entropy of an isolated system always increases over time, and spontaneous processes are those that increase the total entropy of the system and its surroundings.In order for a reaction to be spontaneous, the change in the total entropy of the system and its surroundings, ΔS_universe, must be positive. This means that either the entropy of the system (ΔS_sys) must increase or the entropy of the surroundings (ΔS_surr) must decrease.

The entropy of the system can increase due to an increase in temperature or an increase in the number of energetically equivalent microstates available to the system. On the other hand, the entropy of the surroundings can decrease due to a decrease in temperature or a decrease in the number of energetically equivalent microstates available to the surroundings. The Second Law of Thermodynamics requires that the total entropy of the universe (system and surroundings) must increase in order for a process to occur spontaneously. If ΔS_universe is negative, the reaction will not occur spontaneously.  Option(B)

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According to the Second Law of Thermodynamics, in order for a reaction to be spontaneous and the value must increase is B) ASuniverse .

The Second Law of Thermodynamics is engaging attention the concept of deterioration, that is a measure of the disorder or randomness of a structure. It states that the entropy of an unique scheme tends to increase over period.

In the context of a related series of events, the deterioration change can be detached into two components: the deterioration change of bureaucracy (ASsys) and the entropy change of the environment (ASsurr).

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To determine the work done on the object from 0s to 5s, a student can use the equation ΔK = (1/2)mv², where ΔK is the change in kinetic energy of the object, m is its mass, and v is its velocity.

Since the velocity of the object is changing with time, the student can use the equation ΔK = (1/2)mΔv², where Δv is the change in velocity of the object from 0s to 5s. To find Δv, the student can read the initial velocity, v0, from the y-axis at 0s and the final velocity, vf, from the y-axis at 5s. Then, Δv = vf - v0.

Substituting the values of Δv and m into the equation ΔK = (1/2)mΔv², the student can calculate the change in kinetic energy of the object from 0s to 5s. This change in kinetic energy represents the work done on the object during this time interval.

Using the given values in the problem, the mass of the object is 2 kg. The initial velocity, v0, can be read from the y-axis at 0s, which is approximately 0 m/s. The final velocity, vf, can be read from the y-axis at 5s, which is approximately 4 m/s.

Therefore,

Δv = vf - v0

     = 4 m/s.

Substituting these values into the equation,

we get

ΔK = (1/2)(2 kg)(4 m/s)²

      = 16 J.

Therefore, the work done on the object from 0s to 5s is 16 J.

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This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics from 1500 to 2000.

What is definition of timeline?

A timeline is a display of a list of chronicle in chronological order. It is usually a graphic design showing a long bar tagged with dates paralleling it, and usually present day chronicle.

Timelines can use any appropriate scale representing time, suiting the subject and statements; many use a linear dimension, in which a unit of distance is equal to a set quantity of time. This timescale is incumbent on the chronicle in the timeline.

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Answer:

W = F * s    

Work done equals applied force * distance traveled

Apparent weight = M g (1 - sin θ)     since some of applied force will lighten sled

μ = coefficient of kinetic friction

F cos θ = force applied to motion of sled

s = distance traveled

[μ M g (1 - sin θ)] cos θ * s = work done in moving sled

Note that F = μ M g    if applied force is in the horizontal direction

ANSWER:

C. light energy → electrical energy → heat energy

STEP-BY-STEP EXPLANATION:

Solar panels capture light energy from the sun, which must necessarily be converted into electrical energy to then generate heat to bake the cookies.

So, the correct order would be the following:

C. light energy → electrical energy → heat energy

Answer:yeah its C lol

Explanation:

The velocity of the eagle is 12.4 m/s

Velocity is the rate of change of displacement.

The S.I unit of velocity is m/s.

To calculate the velocity of the eagle, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the velocity of the eagle is 12.4 m/s.

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Answer:

.

Explanation:

To determine the output power (in watts) of a voltage rail, you need to know both the voltage and the current flowing through the rail. The formula for power (in watts) is P = V x I, where P is power, V is voltage, and I is current. So, if you know the voltage and current of the voltage rail, you can multiply them together to get the output power. Keep in mind that power is measured in watts, voltage is measured in volts, and current is measured in amperes.

To determine the output power (in watts) of a voltage rail, you'll need to know the voltage across the rail (in volts) and the current flowing through it (in amperes). You can use the following formula:
Power (in watts) = Voltage (in volts) × Current (in amperes)
Step 1: Measure the voltage across the rail using a voltmeter.
Step 2: Measure the current flowing through the rail using an ammeter.
Step 3: Multiply the measured voltage and current values to calculate the output power in watts.
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Answer:

The net strong force on each proton due to all the nucleons is stronger than the net repulsive force.

Explanation:

The strong nuclear force pulls together protons and neutrons in the nucleus. At very small distances only, such as those inside the nucleus, this strong force overcomes the electromagnetic force, and prevents the electrical repulsion of protons from blowing the nucleus apart.

The frequency of the blue light with a wavelength of 400 nm is 7.50×10¹⁴Hz. Hence, option D is correct.

The frequency of the wave is obtained by taking the ratio between the speed of light and wavelength of light. ν = c/λ, where c is the speed of the light and is equal to 3×10⁸ m/s.

From the given,

the wavelength of the light (λ) = 400nm = 400 × 10⁻⁹ m

Frequency (ν) = c/λ

ν = 3×10⁸/400 × 10⁻⁹

 = 0.0075×10¹⁷

 = 7.5 × 10¹⁴ Hz

The frequency of blue light is 7.5 × 10¹⁴ Hz. Hence, the ideal solution is option D.

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Explanation:

the researchers hope to improve their understanding on that particular subject and to also make the research accurate

I'm guessing 6.

the coefficient of two turns our hydrogen into 4 and our oxygen into 2 which makes a total of 6 molecules.