What are the 4 factors of material resistance?

Answer:

a = 5m/s²

Explanation:

a = (v - u)/t

a = (20 - 5)/3

a = 15/3

a = 5m/s²

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The wavelength of radio waves broadcast by a radio station with a frequency of 1300khz would be 230.76 m

It can be understood in terms of the distance between any two similar successive points across any wave for example wavelength can be calculated by measuring the distance between any two successive crests.

The wavelength is inversely proportional to the frequency of the wave as from the following relation.

C = νλ

As given in the question  the wavelength of radio waves broadcast by a radio station with a frequency of 1300khz,

By using the formula

C = νλ

3×10⁸ = 1300 ×10³×λ

λ = 3×10⁸/ 1300 ×10³

  = 230.76 m

Thus,the wavelength of the radio waves comes out to be 230.76 m.

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Given that spring constant, k = 100 N/m and displacement, x = - 5mm = - 0.005 m

The formula of restoring force according to Hooke's law,

Substituting the values, we get

Thus, the force is 0.5 N

Answer: There are many problems associated with digitized DNA storage.

Explanation:

The cost of encoding the DNA data is high and lot of working efficiency is required for the same. The encoding process requires a considerable amount of time and encoding is slow. It takes about 400 bytes per second. This is done in a silicon memory chip. The process is millions of times slower.

Answer:

A 72 kg object moving 25m/s

Explanation:

Answer:

C. a 72kg object moving 25 m/s

Explanation:

I just did it on A pex

The answer is  0.48 kg m^2

Given,

m1 = 0.2 kg

m2 = 0.3 kg

L = 2 m

Let the centre of mass is at a distance d from 0.2 kg.

So, m1 x d = m2 x (L - d)

0.2 x d = 0.3 x (2 - d)

2 d = 6 - 3d

5 d = 6

d = 1.2 m

Moment of inertia about the centre of mass,

I = m1 x d^2 + m2 x (L - d)^2

I = 0.2 x 1.2 x 1.2 + 0.3 x 0.8 x 0.8

I = 0.288 + 0.192

I = 0.48 kg m^2

All bodies have a tendency to resist changes to their current states, according to Newton's second law. A body in motion resists change by not coming to a complete halt right away, just as a body at rest resists change when it is put into motion. Similar to this, a rigid body's rotational inertia refers to the amount of torque necessary to modify the angular velocity of the body.

The concept of a rigid body's rotational inertia is crucial since it clarifies how much torque is needed to accomplish a certain goal. The mass of a rigid body and its distribution with regard to the axis around which it rotates have an impact on its rotational inertia.

The distance of the centre of mass from the axis of rotation increases or decreases the rotational inertia of a rigid body.

m1 x d = m2 x (L - d)

I=13mL2 I = 1 3 m L 2 is the moment of inertia for a rod that spins about an axis perpendicular to the rod and passing through one end. The moment of inertia is I=112mL2 if the axis of rotation passes through the middle of the rod.

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It will be safer to drive more slowly in a crowded city area because there is low risk of accident as compared to more quickly movement.

The impulse-momentum theorem says that change in momentum of an object is always equal to the impulse applied to it. This theorem is logically equivalent to Newton's second law of motion.

So we can conclude that It will be safer to drive more slowly in a crowded city area because there is low risk of accident as compared to more quickly movement.

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Answer:

To find the work done in moving the particle from the origin to x = 2, we need to integrate the force over the given interval.

The work done (W) is calculated by integrating the force function with respect to displacement (dx) from the initial position (0) to the final position (2):

W = ∫(0 to 2) (10x³ - 5) dx

Integrating the force function, we get:

W = ∫(0 to 2) (10x³ - 5) dx = [2.5x⁴ - 5x] evaluated from 0 to 2

Now, substituting the upper limit (2) and lower limit (0) into the equation:

W = [2.5(2)⁴ - 5(2)] - [2.5(0)⁴ - 5(0)]

 = [2.5(16) - 10] - [0 - 0]

 = 40 - 10

 = 30

Therefore, the work done in moving the particle from the origin to x = 2 is 30 units of work.

Explanation:

Answer:

Impulse=18Ns

Explanation:

Impulse= force*time

Plug in known values...

I=6N*3s

I=18Ns

The impulse  produced by the force is 18Ns

What is Impulse?

Given:

F= 6.0N

t= 3.0 s

On substituting these values in the above formula:

\(I=6N*3s\\ \\I=18Ns\)

Thus, The impulse  produced by the force is 18 Ns.

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Answer:

20 m

Explanation:

The ball travels 4 m up, then 16 m down.  It travels a total distance of 20 m.

Answer:

Beyond the formation of iron, nuclear energy can be produced only by fission of heavy nuclei back toward lighter ones

Answer:

Wave speed and wavelength

Explanation:

Answer: - 10 mph

Explanation:  The car B passenger would see a car going backwards from his/her position, by the speed difference:  (46-56) = -10 mph.

To start and stop an item in motion, according to Newton's First Law of Motion, requires a force.

Newton's first law encapsulates the idea that an object's velocity only changes in response to a force. Unless acted upon by a net external force, Newton's first law states that an object at rest will remain at rest and an object in motion will continue to move at a constant speed.

Unless acted upon by a net external force, Newton's first law states that an object at rest will remain at rest and an object in motion will continue to move at a constant speed.

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Answer:

MOMENTUM= FORCE*MASS

= 140*5

= 700 kg⋅m/s

The answer is The boiling Point as the transition from liquid to gas occurs at the boiling point.

The actuality that it changes from liquid to vapor indicates that you are working with the substance's boiling point.

The material is pure if its temperatures does not change when it turns phases. Since water turns liquid at 100°C in this situation, water is likely the culprit.

The temperature at which a specific liquid will boil is known as its boiling point. For instance, water reaches its boiling point at 1 atm, or 100 degrees Celsius. The temperature of the liquid, the pressure of the atmosphere, and the pressure of the vapor all affect its boiling point.

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Answer:

Average speed = 60km/hr

Explanation:

Given the following data;

Time = 2.5 hrs

Distance = 150km

To find the average speed;

Average speed = distance/time

Substituting into the equation, we have

Average speed = 150/2.5

Average speed = 60km/hr

Answer:

0.44 sec

Explanation:

k = 100 N/m, m = 0.50 kg

Period

none of them

Explanation:

the horizontal speed doesn't matter and if i got it right both of them started from the same height and both of them fell to the water (none of the jumped *higher only farther) and that's the only thing that matters. so they'll both end up there at the same time cause only gravity is affecting their movement process among the way.

A renewable resource, also known as a flow resource, is a resource that gets replenished naturally to replace the portion depleted by usage and consumption.

Examples: solar energy, tidal energy, wind energy, hydro power, bio-energy etc.

A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a pace equal to keep up with consumption rate.

Examples: fossil fuels, natural gas, nuclear energy, natural gas etc

Answer: A rotating body or system can be in equilibrium if its rate of rotation is constant and remains unchanged by the forces acting on it.

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The possible potential difference between the truck's top and bottom side panels is 1.39 x 10^-4 V.

The potential difference between two points in an electric circuit is given by the product of the magnetic field, the cross-sectional area of the conductor, and the component of velocity perpendicular to the magnetic field.

The potential difference between the top and bottom of the truck's side panels can be calculated using the following formula:

V = Blv

Where:

V = potential difference (V)

B = magnetic field (T)

l = length of conductor (m)

v = velocity of conductor perpendicular to the magnetic field (m/s)

Given that the magnetic field is B = (5.0 x 10^-5 T, north) and the truck is moving west at 50 km/hr = 13.89 m/s, the potential difference between the top and bottom of the truck's side panels can be calculated as:

V = Blv = (5.0 x 10^-5 T) * (2.0 m) * (13.89 m/s) = 1.39 x 10^-4 V

It is important to note that the magnetic field is pointing north and the truck is moving west, so the velocity of the truck is perpendicular to the magnetic field, which means that the potential difference is not zero. Also, it is important to note that the velocity of the truck is given in km/hr and needs to be converted to m/s before using it in the equation.

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Answer:

the first one is the correct answer

The coefficient of kinetic friction between the calculus book and the floor in the pickup game of dorm shuffleboard is approximately 0.183. This value represents the ratio of the net force acting on the book, which is the difference between the applied force from the broom and the force of friction, to the weight of the book.

To determine the coefficient of kinetic friction between the book and the floor, we can use the following equation:

μk = (F_net - F_applied) / (m * g),

where μk is the coefficient of kinetic friction, F_net is the net force acting on the book, F_applied is the applied force from the broom, m is the mass of the book, and g is the acceleration due to gravity.

In this scenario, the applied force from the broom is 49 N, and the mass of the book is 4.9 kg. The net force can be calculated using Newton's second law, which states that F_net = m * a, where a is the acceleration.

To find the acceleration, we can use the equation:

\(v^2\) = \(u^2\) + 2 * a * s,

where v is the final velocity, u is the initial velocity (0 m/s in this case since the book starts from rest), a is the acceleration, and s is the distance traveled.

Plugging in the given values, we have:

\((1.4 m/s)^2\) = \((0 m/s)^2\) + 2 * a * 0.90 m.

Simplifying the equation gives us:

1.96\(m^2\)/\(s^2\)= 1.8 m * a.

Solving for a, we find:

a = 1.96\(m^2\)/\(s^2\) / 1.8 m = 1.0889 \(m/s^2\).

Now we can calculate the net force:

F_net = m * a = 4.9 kg * 1.0889\(m/s^2\) = 5.335 N.

Substituting the values into the equation for the coefficient of kinetic friction:

μk = (F_net - F_applied) / (m * g) = (5.335 N - 49 N) / (4.9 kg * 9.8 \(m/s^2\)) ≈ 0.183.

Therefore, the coefficient of kinetic friction between the book and the floor is approximately 0.183.

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Answer: mechanical waves are caused by the disturbance of vibration in matter, whether solid, gas, liquid, or plasma.

Explanation:

The diagram shows that there has been an increase in the speed of the car as the ramp is raised. But when we check on the 4th ramp, we would see that there was a decrease in the speed after the third bar

Speed can be defined as the rate at which an object covers a certain distance in a given amount of time. It is a measure of how fast an object is moving relative to a reference point. The standard unit of speed in the International System of Units (SI) is meters per second (m/s), although other units such as miles per hour (mph) and kilometers per hour (km/h) are also commonly used.

In physics, speed is a scalar quantity, meaning that it only has magnitude and no direction. However, when speed is combined with a direction, it becomes velocity, which is a vector quantity. It is important to note that the speed of an object can vary depending on its direction, but its average speed over a distance is always positive.

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Answer:

Yes because

Explanation:

Clouds get their shapes from the air that surrounds them. ... Since clouds are made up of millions of tiny pieces of water, when they are really high up in the sky where the air is very cold, the water droplets freeze into floating ice crystals. When we observe these clouds way up in the sky, they look like wispy strands

Answer:

Explanation:

Given:

M = 20.0 kg

V₀ = 0 m/s

V = 16.0 m/s

___________

A - ?

A = M·V² / 2

A = 20.0·(16.0)² / 2 = 2 560 J

Answer: B 2560j

Explanation:

i got it right on edge 2022

Answer:

hi

Explanation: