Present an argument about the likely kinetic energy of the ball before and after the collision with the can.

Answer: 100,000 Pa

Explanation:

[tex]$$Applied Force $=200 \mathrm{~N}$ \\Area $=0.002 \mathrm{~m}^{2}$\\\\Pressure $=\frac{\text { Force }}{\text { Area }}$\\$=\frac{200}{0.002}$\\$=\frac{200}{2 \times 10^{-3}}$\\$=100,000 \mathrm{~Pa}$[/tex]

He can increase the total energy of the system by spinning the top faster.

The term energy refers to the ability to do work. The total energy of the system refers to the gravitational potential energy and the rotational energy of the  top.

Hence, he can increase the total energy of the system by spinning the top faster.

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Given the work done, the force exerted on the taco stand through the given distance is 2.3 × 10³ Newtons.

Work done is simply defined as the energy transfer that takes place when an object is either pushed or pulled over a certain distance by an external force. It is expressed as;

W = f × d

Where f is force applied and d is distance travelled.

Given that;

W = f × d

3500kgm²/s² = f × 1.5m

f = 3500kgm²/s² ÷ 1.5m

f = 2.3 × 10³ kgm/s²

f = 2.3 × 10³ N

Given the work done, the force exerted on the taco stand through the given distance is 2.3 × 10³ Newtons.

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Answer:

The contribution of the wavelets lying on the back of the wave front is zero because of something known as the Obliquity Factor. It is assumed that the amplitude of the secondary wavelets is not independent of the direction of propagation, Sources: byju's.com

According to the Voigt and Kirchhoff's law for wavelets, the contribution of a wavelet in any direction making an angle x with the normal to the wavelet is proportional to {1+cos(x)/2)}

For wavelet lying on the back of secondary wavefront,

→ So, the proportional factor:

→ {1+cos(180°)/2}

→ (1-1/2)

→ (0/2)

→ 0

That's why the contribution of the wavelets lying on the back of secondary wave front is zero

The dispersive power of the material of the prism is independent of the shape, angle of prism or size of the prism. It depends only on the refractive index [tex]{(\mu)}[/tex] of the material of the prism.

Answer:

We can see that the angular dispersion of a prism is dependent on the angle of the prism but dispersive power does not depend on the geometry of the prism.

The displacement of Edward in the westerly direction is determined as 338.32 km.

The displacement of Edward can be determined from different methods of vector addition. The method applied here is triangular method.

The angle between the 200 km north west and 150 km west = 60 + 90 = 150⁰

The displacement is the side of the triangle facing 150⁰ = R

R² = a² + b² - 2abcosR

R² = 150² + 200²  - (2x 150 x 200)xcos(150)

R² = 62,500 - (-51,961.52)

R² = 114,461.52

R = 338.32 km

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Answer:

Mitosis

Explanation:

Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.

One problem with digital data is that it can be vulnerable to hackers. A Hacker is a person who gains unauthorized access to digital data. Thus, Option C is the correct answer.

The word Hacker usually refers to a person who will uses computer to access individually to overcome the technical issues. Not only technical problem some person also use the computer to involve in the unauthorized  data for the process of criminal behaviors.

They will make the data or information to get deleted and also steal or change the data in an unauthorized way.

Thus, if there was a problem with digital data is that it can be vulnerable then a person who gains unauthorized access to digital data is known as Hacker.

So, Option C is the correct answer.

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Answer:

O C. A person who gains unauthorized access to digital data

Explanation:

Answer:

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Explanation:

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Answer:

See below

Explanation:

F = ma

  = 85 * 9.8 = 833 N

OR this could be written as 187.4 pounds

    OR   187 kg-weight     (not just kg)

85 kg is a measure of MASS, but is often (though improperly) used as weight on earth.

Answer:

friction

Explanation: The resistance that one surface or object encounters when moving over another.

If the weight of the metal disk is 1.0 N, the normal force acting on the metal disk is also 1.0 N but acting in the opposite direction.

According to Newton Law, action and reaction are equal and opposite. The reaction force is equal in magnitude to the weight of an object but opposite in direction.

Having said that, if the weight of the metal disk is 1.0 N, the normal force acting on the metal disk is also 1.0 N but acting in the opposite direction.

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Answer:

The proton has much greater mass

Explanation:

Answer:

D, a proton has a much greater mass.

Explanation:

An electron has a mass close to nothing.

Answer:

Hope this helps!

Explanation:

The seeds are removed for two reasons:

- You cannot spin cotton into a yarn if there are seeds still in the cotton.

- The seeds are a very valuable component of cotton and have a variety of uses.

Answer:

4.9

Explanation:

Velocity half second before maximum height = Velocity half second after maximum height (Return journey)

For downward journey :

Initial velocity u=0 m/s

We have g=9.8 m/s

Time t= ½s

s

Thus velocity after half second v=u+gt

v=0+9.8× ½ =4.9m/s

Answer:

True

Explanation:

hope it will help you

The light of the second laser compare with the original laser in the following way: the light in the second laser absorbs more optical radiation.

A laser is device that produces a monochromatic, coherent beam of light.

A laser is created when electrons in the atoms in optical materials like glass, crystal, or gas absorb the energy from an electrical current or a light.

Therefore, it can be said that light of the second laser compare with the original laser in the following way: the light in the second laser absorbs more optical radiation.

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The power dissipated by the LED is 20 Watts and the work done for 1 hour 15 minutes is 56.25 kJ.

Electrical power is the rate at which electrical work is done.

The LED is 75% efficient means that 75% of power dissipated by the LED is converted to light.

Total power dissipated = 5 × 2.5 = 12.5 Watts

Work done = 12.5 × (1 × 3600 + 15 × 60)

Work done = 56250 J = 56.25 kJ

Therefore, the power dissipated by the LED is 20 Watts and the work done for 1 hour 15 minutes is 56.25 kJ.

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Voltage is always twice the amount of power. This is statement is accurately describe the relationship between voltage and electric power.

Power is defined as amount of energy transferred or converted per unit time.

From power-current relation

P=VI

Also, From Ohm's Law we know that,

V= IR

Replacing the value of V in the above equation,

[tex]P =\frac{I^{2} }{R}[/tex]

When the values for current and resistance are given then the equation is,

[tex]P =\frac{V^{2} }{R}[/tex]

Hence , Voltage is twice to the electric Power.

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Answer:

411.84 kg m/s

Explanation:

Formula :

Momentum = mass × velocity

=========================================================

Given :

⇒ mass = 26.4 kg

⇒ velocity = 15.6 m/s

=========================================================

Solving :

⇒ Momentum = 26.4 × 15.6

⇒ Momentum = 411.84 kg m/s

Answer:

All of the above

Explanation:

hope it helps you

Congo/Zaire region is the country which experienced chaos after their independence due to lack of experience in democratic self-government.

This type of government involves the people making legislative decisions and choosing those who will rule and represent them.

Congo/Zaire region was not self sufficient and were inexperienced in democratic self-government after independence which led to political crisis.

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Answer:

True, the total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy.

Explanation: Hope it helps you:))))

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The speed of the cart after 3 seconds of Low fan speed is (2) cm/s. This is further explained below.

Generally, speed is simply defined as the rapidity of movement or efficiency of operation.

In conclusion, After 8 seconds with the fan set at Low, the cart will have traveled 1 cm/s. After three seconds at medium fan speed, the cart travels at a velocity of two centimeters per second.

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The  work required to assemble this charge arrangement starting with each of the charges as very large distance from any of the other charges is +1.9 J.

The work required to assemble this charge arrangement starting with each of the charges as very large distance from any of the other charges is calculated as follows;

W = qV

where;

[tex]W = q (\frac{kq}{r} )[/tex]

where;

[tex]W = q (\frac{kq}{r} + \frac{kq}{r\sqrt{2} } + \frac{kq}{r} )\\\\W = \frac{kq^2}{r} ( 2 + \frac{1}{\sqrt{2} } )\\\\W = \frac{(9\times 10^9 \times (4\times 10^{-6})^2}{0.2} ( 2.707)\\\\W = 1.9 \ J[/tex]

Thus, the  work required to assemble this charge arrangement starting with each of the charges as very large distance from any of the other charges is +1.9 J.

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(a) The projectile's velocity at the highest point of its trajectory is 51.96 m/s.

(b) The maximum height reached by the projectile is 45.92 m.

At the highest point of trajectory the vertical component of the velocity will be zero will the horizontal component will remain constant.

Vxi = Vxf = Vcosθ = 60 x cos30 = 51.96 m/s

The maximum height reached by the projectile is calculated as follows;

H = u²sin²θ/2g

H = (60² x (sin30)²)/(2 x 9.8)

H = 45.92 m

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Answer: 1600 km from the surface

Explanation:

[tex]E = \frac{GM}{R^{2} }\\g1 = \frac{GM}{R1^{2} } \\R1 = 6400 km\\g2 = 0.64g1\\\frac{g1}{g2} = \frac{\frac{GM}{R1^{2} } }{\frac{GM}{R2^{2} } } \\\frac{g1}{0.64g1} = \frac{R2^{2}}{R1^{2} }\\\frac{1}{0.64} = \frac{R2^{2}}{6400^{2} }\\\\\frac{1}{0.8} = \frac{R2}{6400}\\\\R2 = \frac{6400}{0.8}\\R2 = 8000 km\\[/tex]

Therefore, 8000 km - 6400 km = 1600 km from the surface

From the calculation , we can see that the specific heat capacity is 513 kJ

The specific heat capacity is the heat that can be able to raise the temperature of 1 Kg of a material by 1K.

Now;

We know that;

Latent heat of evaporation = 855kJ/kg

Mass of the liquid = 0.60kg

H = mL

H = 0.60kg * 855kJ/kg

H = 513 kJ

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All the statements are correct for the strength of electric field.

The amount of charge on the source and the distances from the source charge both affect how strong the electric field is.

All the statements are true as

The electric force varies directly with charge therefore , statement 2 is correct

The electric force varies indirectly with the distance between the electric field , Therefore statement 1 is correct.

It is known that Oppositely charged objects will attract each other , Statement 3 is correct.

Therefore all the statements are correct for the strength of electric field.

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