Why do lunar and solar eclipses not happen every month

(a) When you apply a force of 40 N, the magnitude of the horizontal component of the force that the floor exerts on the block is 51 N.

(b) When you apply a force of 59 N, the magnitude of the horizontal component of the force that the floor exerts on the block is 51 N.

The horizontal component of the force that the floor exerts on the block is determined by applying Newton's second law of motion;

[tex]F = ma[/tex]

[tex]\Sigma F = 0\\\\F - F_f = 0\\\\F = F_f[/tex]

[tex]F_f = F\\\\F_f = 51 \ N[/tex]

where;

Since the surface (floor) is constant, the frictional force (horizontal component of the force that the floor exerts on the block ) will be the same on the cases.

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Based on the definition of limiting frictional force;

Force is any push or pull effect which tends to cause a change in the motion or shape of an object.

Based on Newton's third law, every force produces an equal and opposite reaction.

Therefore, the force that the floor exerts on the block is oppositely direction to the force exerted by the horizontal force acting on the block.

Since a horizontal force of 51 N applied to the block is required to keep the block moving across the floor at a constant speed, this is the limiting frictional force.

a) when a force of 40 N is applied to the block, the magnitude of the horizontal component of the force that the floor exerts on the block is equal to 40 N

b) when a force of 59 N is applied to the block, the magnitude of the horizontal component of the force that the floor exerts on the block is equal to 51 N, the limiting frictional force.

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Maths :

The length between 2 points.

Physics =

Distance = speed × time

Distance is defined as the space between two points in space.

Distance is defined as the space between two points in space.

The unit of distance is metres or kilometres.

Distance can be measured directly usind instruments such as metre rule and tape rule.

The formula for calculating distance is given below:

Distnce = velocity × time.

Therefore, distance is defined as the space between two points in space.

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Answer:

when the moon moves in front of the Sun as seen from a location on Earth.

Explanation:

A solar eclipse happens when the moon moves in front of the Sun as seen from a location on Earth. During a solar eclipse, it gets dimer and dimmer outside as more and more of the Sun is covered by the Moon. During a total eclipse, the entire Sun is covered for a few minutes and it becomes very dark outside.

Workdone:-

[tex]\\ \tt\longrightarrow Force\times Displacement [/tex]

[tex]\\ \tt\longrightarrow 500(100)[/tex]

[tex]\\ \tt\longrightarrow 50000J[/tex]

Answer:

F= 1.67 x [tex]10^{-13}[/tex]N

Explanation:

I used this equation:

F = GMm/R²

Where M is mass 1

where m is mass 2

where R is distance

where F is gravitational force

The horizontal force needed to keep the same box sliding on the same horizontal floor at a given constant speed is 45 N.

The horizontal force needed to keep the same box sliding on the same horizontal floor at a given constant speed is calculated as follows;

[tex]F= \frac{mv}{t} \\\\mv = Ft\\\\m = \frac{Ft}{v} \\\\\frac{F_1}{v_1} = \frac{F_2}{v_2}[/tex]

where;

[tex]F_2 = \frac{F_1v_2}{v_1} \\\\F_2 = \frac{15 \times 1.5}{0.5} \\\\F_2 = 45 \ N[/tex]

Thus, the horizontal force needed to keep the same box sliding on the same horizontal floor at a given constant speed is 45 N.

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Answer:

The acceleration of an item is proportional to the net force exerted on it and inversely proportional to its mass. When the force pushing on an item rises, so does the object's acceleration. The acceleration of an item decreases as the mass of the thing increases.

If the force on an object remains constant, increasing mass will decrease acceleration. In other words, force and acceleration are directly proportional, while mass and acceleration are inversely proportional. ( How Newton's Laws of Motion Work" 29 July 2008.)

If the mass of an object is held constant, increasing force will increase acceleration. If the force on an object remains constant, increasing mass will decrease acceleration.

This net force is the resultant force of all forces acting on the body at any given instant. The larger the magnitude of this net force, the larger the acceleration of the body. One of the definitions of mass is the resistance of a body to motion in general and acceleration in particular due to the application of force.

Explanation:

Answer:

C, D, and E

Explanation:

Answer:it’s C, D, E

Explanation:

Answer:

1.Light is a transverse, electromagnetic wave that can be seen by the typical human.

2.The Sun is the major source of light for the earth.

3.An inclusive list of the basic categories of behavior for light would most likely include transmission, absorption, reflection, refraction, diffraction, scattering, polarization and interference.

4.Spherical mirrors contain curved surfaces which are painted on either one of the sides. When an inward surface of a spherical mirror is painted, then this type of mirror is considered a convex mirror. In the meantime, when the outward surface of the spherical mirror is painted, this mirror is called a concave mirror.

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Answer:

B. Energy that is transformed is neither destroyed nor created.

Explanation:

Hope this helped! :)

Answer:

Physically, Sir Isaac Newton was not a large man. However, he had a large intellect, as shown by his discoveries on gravity, light, motion, mathematics, and more. Legend has it that Isaac Newton came up with gravitational theory in 1665, or 1666, after watching an apple fall.

Explanation:

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[tex]kai6417[/tex]

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The position vector of the object after 1 second is (11,000 m, 10,000 m).

The angular speed of the object is calculated as follows;

[tex]\omega = \frac{1 \ }{0.1 \ s} = 10 \ rad/s[/tex]

v = ωr

v = 10 x 1 km

v = 10 x 1000 m

v = 10,000 m/s

[tex]v_x = 1000\ m \ + \ 10,000\ m/s \times 1\ s = 11,000 \ m\\\\v_y = 0 m \ + \ 10,000 \ m/s \times 1 \ s = 10,000 \ m[/tex]

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It is dependent on the sensitivity of the eye to the entire spectrum of visible wavelengths emitted by the source, and the radiant flux (or radiant power) produced at each wavelength. We weight the radiant flux at each wavelength using the luminosity function V-lambda.

The distance travelled by the hockey puck, given that 60 J of work was done by an applied force of 5 N is 12 meters

We know already that work is the product of force and distance moved in the direction of the force:

Work done (Wd) = force (F) × distance (d)

Using the above formula, we can determine the distance travelled by the hockey puck. Details below:

Work done (Wd) = force (F) × distance (d)

60 = 5 × distance travelled

Divide both sides by 5

Distance travelled = 60 / 5

Distance travelled = 12 meters

Thus, from the above calculation, we can conclude that the distance travelled is 12 meters

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l will help and if you get it correctly I will say you are welcome

Answer:

48.5 m/s².

Explanation:

We can use the following kinematic equation:

[tex]\displaystyle v_f = v_i + at[/tex]

Substitute in the appropriate values and solve for acceleration a:

[tex]\displaystyle \begin{aligned} (1250\text{ m/s}) & = (280\text{ m/s}) + a(20\text{ s}) \\ \\ a & = 48.5\text{ m/s$^2$} \end{aligned}[/tex]

Therefore, the acceleration of the fighter jet was 48.5 m/s².

Coulomb force

[tex]\tt F=k\dfrac{q_1.q_2}{r^2}[/tex]

F = coulomb force (N)

Q1,Q2 = the charge (C)

r = distance between two charges (m)

k = constant = 9.10⁹ Nm² / C²

Input the value:

[tex]\tt F=9.10^9\dfrac{0.00368\times 0.00059}{0.4^2}=122130~N[/tex]

Answer:

A and B

Explanation:

Kinetic energy is when an object is in motion, and potential energy is kind of when an object stops being in motion, or there is a pause in motion for an extent of time.

When you are holding the book before dropping it, that book is at potential energy. When you drop the book, the book gains kinetic energy as it falls from your hands and hits the floor. Once it hits the floor and rests, it regains potential energy.

I hope that this helps.

Answer:

[tex]v = \sqrt{ \frac{2 e}{m} } [/tex]

Explanation:

[tex]e = \frac{1}{2} m {v}^{2} [/tex]

[tex]e = \frac{m {v}^{2} }{2} [/tex]

[tex]2e = m {v}^{2} [/tex]

[tex] \frac{2e}{m} = {v}^{2} [/tex]

[tex] \sqrt{ {v}^{2} } = \sqrt{} \frac{2e}{m} [/tex]

[tex]v = \sqrt{ \frac{2e}{m} } [/tex]

Answer:

[tex]a = \frac{v - u}{t} [/tex]

Explanation:

[tex]v = u + at[/tex]

[tex]v - u = at[/tex]

[tex] \frac{v - u}{t} = \frac{at}{t} [/tex]

[tex]a = \frac{v - u}{t} [/tex]

Answer: 148348.6239 kg•m/s

Explanation: Firstly, we need to convert the 14700 N into kilograms, and to do so, use the formula net force is equal to mass times acceleration and rearrange the formula to find mass like shown below...

F = ma

F/a = m

14700/9.81 = 1498.470948 kg, this is your mass

Now that we convert it into kilograms, plug all the numbers into the variable of the momentum formula.

Momentum formula is P = mass x velocity

Like this:

P = 1498.470948 x 99

p = 148348.6239 kg•m/s.

I believe that is your answer, hope that helps you even a bit out.

Thanks.  

Answer:

0.816 kg

Explanation:

[tex]E_k=\frac{1}{2}mv^{2}\\[/tex]

so [tex]m=\frac{2E_k}{v^2}=\frac{2\times500}{35^2}=0.816 kg[/tex]

This question involves the concepts of the equations of motion, kinetic energy, and potential energy.

a. The kinetic energy of the rocket at launch is "3.6 J".

b. maximum gravitational potential energy of the rocket is "3.6 J".

The kinetic energy of the rocket at launch is given by the following formula:

[tex]K.E=\frac{1}{2} m v_i^2[/tex]

where,

Therefore,

[tex]K.E=\frac{1}{2}(0.05\ kg)(12\ m/s)^2[/tex]

K.E = 3.6 J

First, we will use the third equation of motion to find the maximum height reached by rocket:

[tex]2gh=v_f^2-v_i^2[/tex]

where,

Therefore,

2(-9.81 m/s²)h = (0 m/s)² - (12 m/s)²

h = 7.34 m

Hence, the maximum gravitational potential energy will be:

P.E = mgh

P.E = (0.05 kg)(9.81 m/s²)(7.34 m)

P.E = 3.6 J

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Answer:

100kg

Explanation:

Total force =400N+600N=1000N

As we have,

F=m×g

1000N=m×10m/s²

1000N÷10m/s²=m

m=100kg

Answer:

a

Explanation:

Answer:

*Good luck!

Explanation:

9.3x105

Simplifies to:

9.3x100000

=9.3x100000  

Hope that helps