How can you increase the force required to move an object without changing the mass of the object?

Answer:

Elliptical galaxies lack the atomic hydrogen gas that we use to determine orbital speeds at great distances from the centers of spiral galaxies.

When a wave is too steep to support itself, the wave front collapses therefore creating a break.

This is defined as the propagation of disturbance from one place to another in an organized manner.

In situations where the wave is  too steep to support itself there is a break in the wavefront which  advances up the shoreline.

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Answer:

False

Explanation:

A net force on an object causes acceleration or a change in direction....not 'neither'

It is false that if a net force acts on an object, the object may change speed, change direction or do neither. Details about motion can be found below.

Newton's first law of motion also called law of inertia states that an object will remain at rest until it is acted upon by an external force.

This law suggests that an object will change direction or speed when acted upon by a net force.

Therefore, it is false that if a net force acts on an object, the object may change speed, change direction or do neither.

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Answer:

Motion energy, or energy of motion

Explanation:

Answer:

Kinetic Energy is the energy of movement

Explanation:

Answer:

C. Terminal Velocity

Explanation:

Terminal velocity is the maximum velocity an object can experience under free-fall. It occurs when the force of drag (air resistance) matches the force of gravity, causing zero net force. Since [tex]F_{net}=ma[/tex], zero net force means zero acceleration.

Remember that an object can be moving at some velocity and still have zero net force. The zero net force just indicates zero acceleration, meaning the velocity is constant and is not changing.

Answer:

92.5 pounds

Explanation:

Block 4 shows the greatest rise in temperature. The rise in the temperature is inversely proportional to the initial length. The concept of thermal expansion is used in the given problem.

Thermal expansion is the tendency of matter to alter its form, area, volume, and density in response to a change in temperature.

The formula for the thermal expansion is found as;

[tex]\rm \triangle L = L \alpha \triangle T \\\\\ \triangle T = \frac{\triangle L}{L\alpha}[/tex]

The rise in the temperature is inversely proportional to the initial length;

Block 4 has the smallest initial length.

Hence, the block 4 has the greatest rise in temperature.

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A 70 kg skydiver experiences 371 N of air resistance during her skydive the acceleration is 5.3 m/s². The correct option is A.

Using Newton's second rule of motion, we can calculate the skydiver's acceleration:

F = m x a.

Here,

F = the force (371 N, air resistance in this case)

m = mass of the skydiver (70 kg)

a = acceleration

So, we can write,

[tex]a=\frac{F}{m}[/tex]

Substituting the values,

[tex]a = 371\div 70[/tex]

a = 5.3 m/s².

Thus, the correct option is A.

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Hi!The speed of a wave is a product of its wavelength and frequency. Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa. This relationship is represented by the equation: Speed = Wavelength × Frequency.

The arrangement of the photons based on the decreasing number of photons in each beam is; gamma ray >  x-ray > green light > yellow light > AMradio wave > FM Radio wave.

The term electromagnetic radiation refers to those rays that do not require a medium of propagation. That is, the are travel through vaccum. We must note that the greater the frequency of the wave, the greater the number of photons.

Hence, the arrangement of the photons based on the decreasing number of photons in each beam is; gamma ray >  x-ray > green light > yellow light > AMradio wave > FM Radio wave.

Missing parts;

Beams of different frequency electromagneticradiation are listed below. Each beam has the same total energy.Rank these beams on the number of photons in each beam. green light, FM Radio wave, x-ray, yellow light, gamma ray, AMradio wave

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Explanation:

potential energy is the energy of the position of the object whereas kkinetic energy is the energy of the motion of the object

Answer:

once

Explanation:

the earth orbits the sun fully once a year.

Answer:

The Summer Solstice

Explanation:

Hope it helped!

The resulting change in momentum of the system will be +18.6 Ns. The momentum is conserved.

According to the law of conservation of momentum, the momentum of the body before the collision is always equal to the momentum of the body after the collision.

The given data in the problem is;

m is the mass =6.0 kg

t is the time interval=2 second

From Newton's second law;

[tex]\rm \triangle P =m \triangle V \\\\ \triangle P= m(\frac{\triangle x}{\triangle t} )\\\\[/tex]

From the graph;

[tex]\rm \triangle t = 2sec\\\\ \triangle x = (12-8) m[/tex]

The change in the momentum is;

[tex]\rm \triangle P = m\tr(\frac{v-u}{t}) \\\\ \triangle P =9.3 \times \frac{12-8}{2} \\\\ \triangle P= +18.6 \ N.s[/tex]

Hence, the resulting change in momentum of the system will be +18.6 Ns.

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Explanation:

[tex]power = \frac{work}{time} [/tex]

Given

POWER=1000 W

TIME=5s

WORK=POWER×TIME

=1000×5

5×10³

OPTION C

Answer:

check the attachments for the solution

Explanation:

Back to School..

Answer:

They would attract

          but

like charges will repel

Explanation:

HOPE THI HELPS **

If the fundamental frequency or first harmonic of the sound is 200 Hz, the next frequency will be third harmonic and it is 600 Hz.

This is the lowest frequency at which a maximum in the sound level can be heard.

First harmonic of a closed pipe, f₀ = v/4L

Third harmonic of a closed pipe, f₃ = 3v/4L = 3f₀

If the fundamental frequency or first harmonic of the sound is 200 Hz, the next frequency will be third harmonic and it is calculated as follows;

f₃ = 3f₀ = 3(200 Hz)

f₃ = 600 Hz

The complete question is below:

Students use a speaker connected to a sine wave generator to project sound waves into the open left end of a tube that is closed on the right end. The speaker is very close to the tube. A sensor is used to measure the pressure differences created by the sound and the results are displayed on a computer. The entire apparatus is in a sealed chamber that can be filled with different gases.

The chamber is now filled with a gas that has an unknown speed of sound. The students find that the lowest frequency at which they can hear a maximum in the sound level is 200 Hz. If the students slowly increase the frequency, what is the next frequency at which the sensor would measure a maximum in the sound level

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Answer:

Spheres

Explanation:

Points charges are the collection of charges which are located very large distance from each other.

Now as they are approximately equidistant like radius of circle or spheres they are to be spherical.

The slope of a line describes the : ( B ) Change in vertical direction over the change in horizontal direction

Slope is the measure of the steepness of a line it is caluculated by dividing the change in the vertical direction by the change in horizontal direction. slope is also known Δy / Δx.

Hence we can conclude that slope of a line describes the : ( B ) Change in vertical direction over the change in horizontal direction.

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Answer:

collisions between galaxies in the cluster.

Explanation:

--

Answer:

See below

Explanation:

Heat makes the concrete expand...this expansion causes the concrete to buckle up to make room for the expanded volume

Answer:

There is no essential difference between microwaves and blue light other than a difference in frequency and wavelength.

Explanation:

Lets se

And

[tex]\\ \rm\Rrightarrow T=2\pi\sqrt{\dfrac{m}{k}}[/tex]

[tex]\\ \rm\Rrightarrow \sqrt{k}T=2\pi\sqrt{m}[/tex]

So

[tex]\\ \rm\Rrightarrow k\propto m[/tex]

If spring constant is doubled mass must be doubled