unit to measure the weight
We use
of lighter objective

The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

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Answer:1.9 atm

Explanation: I stole it from someone O-O

So it could be wrong

Answer:

A

Explanation:

I may not be right but, in my view it is correct

Answer:

A. The particles are closer together than they would be in most solids.

A hiker approaches a region with many enormous, mature trees and just a variety of other mature bushes and plants. The ecosystem is best describe by the "climax community."

In ecology, the term "climax" refers to the last stage that biotic succession that a plant community can reach in a region depending on the environmental factors in place at the time.

A hiker approaches a region with many enormous, mature trees and just a variety of other mature bushes and plants.

Thus, this ecosystem is best describe by the "climax community."

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The correct question is-

A hiker enters an area where there are large mature trees and a diverse population of other mature plants and shrubs.

Which statement best describes this ecosystem?

It is a climax community.

It is populated with pioneer plants.,

It features many opportunists.,

Answer: c

Explanation:

Answer:

Mass doubles

Explanation:

Since F = ma, and given that the acceleration stayed constant, the mass must have changed. (Assuming thatt when the problem states the force doubles, they mean the net force doubles). Note, that the mass does not have to change if the acceleration is zero.

Answer:

11.573

Explanation:

f = m*a

where f is the force in Newtons, m is the mass of the object (in kg) and a is the acceleration

so, we solve for a

a = f/m

a = 22/1.901

a = 11.573

To resolve the star-planet system at a distance of 4 light-years, a telescope on Earth would need an aperture with a minimum diameter of 55.88 mm.

In optical microscopy, the Rayleigh criterion is frequently used to estimate the resolution of the microscope. The resolution limit imposed by this criterion has long been regarded as a roadblock to using an optical microscope to study biological phenomena at the nanoscale.

We can use the Rayleigh criterion,

θ = 1.22 λ / D

θ = angular resolution

λ = wavelength of light

D = diameter of the telescope's aperture

θ = arctan (r / d)

r = radius of the planet's orbit

d = distance to the star

Now, we use the given values,

r = 149.6×106 km = 149.6×109 m

d = 4 × 9.461×1015 m = 3.7844×1016 m

λ = 550 nm = 550×10-9 m

θ = arctan (r / d)

   =arctan (149.6×109 / 3.7844×1016) = 0.000012 radians

we can use the Rayleigh criterion,

θ = 1.22 λ / D

D = 1.22 λ / θ

D = 1.22 × 550×10-9 / 0.000012

D = 55.88 mm

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How can the modern model of the nuclear atom be described?

Rutherford's atomic model became known as the nuclear model. In the nuclear atom, the protons and neutrons, which comprise nearly all of the mass of the atom, are located in the nucleus at the center of the atom. The electrons are distributed around the nucleus and occupy most of the volume of the atom.

The energy transfer that takes place as the ball changes shape during the contact between the racquet and the ball is due to the changes in shape results in deformation of the ball that converts kinetic energy from the racquet into elastic potential energy in the ball.

When a ball strikes a racquet, the kinetic force of racquet causes the ball to compress, which results in a change in its shape and the energy is transferred from the racquet to the ball, and the work done by the racquet on the ball increases the potential energy stored in the compressed ball, and the ball bounces.

Hence, changes in shape results in deformation of the ball and converts kinetic energy present in the racquet to elastic potential energy in the ball and bounces it.

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The question is incomplete, the complete question is here

State the energy transfer that takes place as the ball changes shape during the contact between the racquet and the ball.

Answer:

a)speed of light.

a)speed of light×time=distance.

Explanation:

light has a constant speed of 299,792,458m/s

This distance is analyzed quantitatively by LIDAR (Light Detection And Ranging) stations, which bounce laser pulses off the retroreflecting mirrors installed on the Moon by the Apollo astronauts.

Lidar is a method of determining ranges that involves using a laser to target an object or a surface and measuring the time it takes for the reflected light to return to the receiver.

LiDAR is a type of remote sensing technology. LiDAR technology collects measurements by using a laser pulse. These are employed in the production of 3D models and maps of objects and environments.

Lidar, which stands for light detection and ranging, has been around for quite some time. It employs lasers to ping off objects and return to the laser source, measuring distance by timing the travel, or flight, of a light pulse.

LIDAR (Light Detection And Ranging) stations analyze this distance quantitatively by bouncing laser pulses off the retroreflecting mirrors installed on the Moon by the Apollo astronauts.

Thus, this way, the distance can be calculated.

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B) A pendulum is a mass suspended on the bottom of a string.

A pendulum is a simple mechanical device that consists of a mass (known as the bob) suspended from a fixed point by a string, wire, or rod. When the bob is pulled to one side and released, it swings back and forth under the influence of gravity, forming a regular pattern of motion. The time it takes for the pendulum to complete one full swing (i.e., from one extreme position to the other and back again) is known as its period. The period of a pendulum is affected by the length of the string and the strength of gravity. The longer the string, the longer the period, and the stronger the gravity, the shorter the period.Pendulums have a wide range of practical applications, such as timekeeping, as seen in grandfather clocks. They are also used in scientific experiments to measure time intervals and gravitational acceleration.

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The crate (92 kg) will be slide on the rough floor with kinetic friction about 0,2.

Minimum force is required to allow the crate moves, which is calculated as follows :

Kinetic friction is formed because there are two or more things are sliding together. In this case, crate and floor are rubbing each other. Kinetic friction can cause the speed of things decreased.

Crate need a bigger force than the friction one to make it move.

So, we can calculate the value of a kinetic friction first.

f = μ x N

f = friction (Newton)

μ = coefficient of kinetic friction

N = Normal force (Newton)

f = μ × N

f = 0,2 × m × g

f = 0,2 × 92 × 10

f = 2 × 92 = 184 N

So, Crate need more than 184 N or bigger than a kinetic friction to allows it move.

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A thin, non-conducting spherical shell of radius r carries a uniform charge density and a total charge is \(\Rightarrow P=\frac{a^2 b^2}{32 \pi 6 r^3\left(4 \pi r^2-\pi b^2\right)}\)

What is density?

The mass of a substance per unit of volume is its density. Density is most frequently represented by the symbol, however Latin letter D may also be used. Mass divided by volume is the formula for density in mathematics: displaystyle rho = frac mV. where m is the mass, V is the volume, and is the density.

Elewk fiud 4 the center of \($x$\) din of

\($$E^{\prime}=\frac{\sigma}{2 \epsilon_0}=\frac{Q^{\prime}}{\left(\pi b^2\right) 2 \epsilon_0}$$\)

where 9 is the total every in the disk.

rose before the dusk tory reigned, the

evener held at the point was

\(F_0=\frac{Q}{4 \pi t r^2} \cdot \text { But } \varepsilon_0=\text { elecke held by the }\)

\(reat of the sphere + deurc freld by the disk of radiun ' $b$ '$\Rightarrow$ Eleunc field alter rennoual $=E_0-E^{\prime}$\)

\(\Rightarrow E=\frac{a}{4 \pi 6 r^2}-\frac{a^{\prime}}{2 \pi \epsilon b^2} \cdot d=a\left(\frac{\pi b^2}{4 \pi r^2}\right)\)

\(\Rightarrow a^{\prime}=\frac{9 b^2}{4 r^2} \Rightarrow E=\frac{3}{4 \pi z r^2}-\frac{9 b^2}{8 \pi 6 b^2 r^2}\)

\(\Rightarrow E=\frac{Q}{4 \pi 6 r^2}-\frac{Q}{8 \pi \sigma_0 r^2}=\frac{Q}{P \pi 60 r^2}\)

\(\text { (b) } F=Q^{\prime} E=\frac{Q b^2}{4 r^2} \frac{d}{8 \pi 6 r^2}=\frac{Q^2 b^2}{32 \pi \epsilon r^3}\)

\(\text { (c) } P=\frac{F}{A} \cdot a r e a=4 \pi r^2-\pi b^2\)

\(\Rightarrow P=\frac{a^2 b^2}{32 \pi 6 r^3\left(4 \pi r^2-\pi b^2\right)}\)

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Answer:

B. medical imaging, C. communication technology, and D. air conditioner.

the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s is  6,000 J. Option C is correct answer.

The kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s can be calculated by using the formula:

K.E = 1/2 mv²

Where, K.E = Kinetic energy of the objectm = Mass of the objectv = Velocity of the object

Putting the given values in the above formula:

K.E = 1/2 mv²K.E = 1/2 × 30 kg × (20 m/s)²K.E = 1/2 × 30 × 400K.E = 6000 joules

The correct answer is C.

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Air has lower density than water, mineral Water, or salt water. (B)​

The direction and magnitude of the net vector is:

When vector A with magnitude of 5 meters pointing west and

vector B with magnitude of 5 meters pointing east are added,

they will result in a net vector with a magnitude of the difference between the magnitudes of the vectors and a direction equal to the direction of the vector with the largest magnitude.

Since both vectors have the same magnitude (5 meters), the net vector will have a magnitude of 0 meters.

This means that the vectors completely cancel each other out and there is no net vector remaining.

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The magnitude of the resultant vector to round the answer to the nearest tenth, we look at the digit in the hundredth's place. If this digit is 5 or greater, we round up. If it is less than 5, we round down.

In the study of physics, we use vectors to represent quantities that have both direction and magnitude. It is often the case that we want to add two or more vectors together to obtain a single vector that represents the net result of these additions. The process of adding two or more vectors together is known as vector addition.The magnitude of the resultant vector is the length of the line that represents it on a scale drawing.

When we add two or more vectors together, the resultant vector is the vector that represents the net result of these additions. To find the magnitude of the resultant vector, we use the Pythagorean theorem, which states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

In the case of vector addition, the hypotenuse is the resultant vector, and the other two sides are the component vectors. If we have two vectors a and b, the magnitude of the resultant vector is given by the following equation:|R| = √(ax2 + bx2)where R is the resultant vector, a and b are the component vectors, and x is the angle between the vectors.

For example, if the answer is 12.345, we would round it to 12.3.

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Answer:

B

Explanation:

If both have the same charge they would move away from eachother.

Answer:

The prediction for its maximum potential energy is 109,375 J

Explanation:

Given;

mass of the coaster car, m = 350 kg

speed of the coaster car at the lowest point, v = 25 m/s

The coaster car will have maximum kinetic energy at the lowest point and based on law of conservation of mechanical energy, the maximum kinetic energy of the coaster car at the lowest point will be equal to maximum potential energy at the highest point.

\(K.E_{max} = P.E_{max}\)

\(K.E_{max} = \frac{1}{2} mv^2\\\\K.E_{max} = \frac{1}{2} (350)(25)^2\\\\K.E_{max} =109,375 \ J\)

\(Thus, P.E_{max} = 109,375 \ J\)

Therefore, the prediction for its maximum potential energy is 109,375 J

Answer:

Just as it reaches the top of the bounce.

Explanation:

When an object reaches to the maximum height, its kinetic energy is equal to 0. It can be calculated as follows :

\(K=\dfrac{1}{2}mv^2\)

Where

m is mass and v is velocity

In this problem, Anita is bouncing a tennis ball on the sidewalk. She drops the ball and then watches it bounce back up.

It means, when it reaches the top of the bounce, Anita's tennis ball have zero kinetic energy. Hence, the correct option is (d).

Answer:

Explanation:

Answer:

can someone please answer this i need this for a mastery test aswell

Explanation:

it would be very appreciated

Answer:

3.45 inches = 8.763e-5 kilometers

Answer:

I think its B

Explanation:

Hope this helps

Answer:

Gironde Ecosystem is an important biological and cultural area.

Explanation:

Answer:

Explanation:

In a conductor, electric current can flow freely, in an insulator it cannot.

Metals such as copper typify conductors, while most non-metallic solids are said to be good insulators, having extremely high resistance to the flow of charge through them.

Most atoms hold on to their electrons tightly and are insulators.

Answer:

What Is Moral Subjectivism? Moral subjectivism is based on an individual person's perspective of what is right or wrong. An individual can decide for themselves that they approve or disapprove of a certain behavior, and that is what determines if the behavior is right or wrong.

Based on the information, it should be noted that the resistance R is 0.5 Ω.

When S1 and S2 are open, i leads e by 30°. In this case, the circuit consists of only the inductor (L) and the capacitor (C) in series. Therefore, the impedance of the circuit can be written as:

Z = jωL - 1/(jωC)

Since i leads e by 30°, we can express the phasor relationship as:

I = k * e^(j(ωt + θ))

Z = jωL - 1/(jωC) = j(120π)L - 1/(j(120π)C)

Re(Z) = 0

By equating the real parts, we get:

0 = 0 - 1/(120πC)

Let's assume that there is a resistance (R) in series with the inductor and capacitor. The impedance equation becomes:

Z = R + jωL - 1/(jωC)

Z = R + jωL

Im(Z) = ωL > 0

Substituting the angular frequency and rearranging the inequality, we have:

120πL > 0

L > 0

This condition implies that the inductance L must be greater than zero.

When S1 and S2 are closed, i has an amplitude of 0.5 A. In this case, the impedance is:

Z = R + jωL - 1/(jωC)

Since the amplitude of i is given as 0.5 A, we can express the phasor relationship as:

I = 0.5 * e^(j(ωt + θ))

By substituting this phasor relationship into the impedance equation, we can determine the value of R. The real part of the impedance must be equal to R:

Re(Z) = R

Since the amplitude of i is 0.5 A, the real part of the impedance must be equal to 0.5 A: 0.5 = R

Therefore, the resistance R is 0.5 Ω.

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