A ball vertically drops from rest onto a flat surface a distance 3.0\,\ mathrm {m}3.0 m below the ball. After bouncing once, it returns to its original height. You may assume that the time of the collision is small compared to the total time the ball is moving. How long does it take the ball to reach its original height again after being dropped? Please give your answer in units of \ mathrm\{s\}s.

Answer:

not realy sure i am really sorry

Explanation:

Answer:

I think B but im not sure

Explanation:

Answer: i think both mirrors are used to reflect the beam of light.

Explanation:

gr 10 science right? im almost done the semester and i learnt this already so i think the best answer is the last one

A. Light travels in a straight line.

Expliantion: study island

Answer:

Emissions from power plants that burn fossil fuels increase atmospheric carbon dioxide, which is absorbed by the ocean.

Explanation:

Fossil fuels are burnt in power plants in order to produce energy. These fossil fuels contain carbon. Combustion of these fossil fuels emits oxides of carbon into the atmosphere. The oxides of carbon are carbon II oxide and carbon dioxide.

Carbon dioxide can be absorbed by the ocean to form carbonic acid according to the reaction equation;

CO2(aq) + H2O(l) ------> H2CO3(aq)

This is an anthropogenic activity which increases ocean acidification.

The flow rate must be slower at the larger diameter end.

The rate and direction of an object's movement are referred to as its velocity, while its speed is the time rate at which it moves along a path. Speed, on the other hand, is a scalar, while velocity is a vector.

Speed is defined as the rate at which distance changes over time. Time intervals are used to measure distance. The SI unit of speed is the sum of the fundamental units of time and distance. Consequently, the SI unit for speed is meters per second.

To know more about Speed visit:

https://brainly.com/question/2141628

#SPJ4

The conversion from meters to astronomical units is done by dividing the average distance by 1. 5 × 10^11.

Just as different areas of human endeavor has different units, the unit of length in astronomy is astronomical units. The astronomical unit is defined as the distance between the center of the earth and the sun.

To  solve a problem using the equation for Kepler's third law, Enrico must convert the average distance of Mars from the Sun from meters into astronomical units. This is done by dividing the average distance by 1. 5 × 10^11.

Learn more: https://brainly.com/question/17638582

Answer:

Explanation:

just use the gravational force equation which is G x m of earth x m of object divided by r squared (which is radius of earth)

Even though light travels through glass at a slower pace over time, the speed of light that exits a glass pane is regarded as being equal to the speed of light that strikes the glass.

Learn more about the reflection and refraction with the help of the given link:

https://brainly.com/question/20341265

#SPJ4

1. Distance covered 200 Meters

2. Displacement 100 Meters

3. Displacement from starting position 0 Meters                                                                                                                                    

Distance is the sum of an object's movements, regardless of direction. Regardless of an object's starting or ending position, distance can be defined as the amount of ground it has covered.

Displacement refers to the idea that something has moved or been shifted. The term "displacement" refers to a shift in an object's position.

Solution.1 -Natasha sprints 100m and walks back to the starting position 100m.                                                                                                                        100m+-100m= - 200m

Therefore, the answer is 200                                                                                                                      

Solution.2 - Natasha sprints towards finishing line 100m then her displacement is 100m from starting line.

Solution.3 -Natasha sprints 100m towards Finishing line then walked back to starting line then her displacement is

100m - 100m =0 meters

Therefore the answer is 0 meters

To know more about distance visit:

https://brainly.com/question/15172156

#SPJ13

The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

To know more about damping ratios, refer here:

https://brainly.com/question/31463018#

#SPJ11

Answer:

Reflected

Explanation:

During the process of reflection whatever that is sent forth e.g light comes back (reflects)

Answer:

transmitted

Explanation:

took quiz

A man of 75 kg falls while holding the end of a rope wrapped around a 225 kg cylinder, suspended horizontally without friction. The man's acceleration is 1.68 m/s², and the cylinder's angular acceleration is 3.73 rad/s². If the rope's mass were not negligible, the cylinder's angular acceleration would decrease due to increased mass.

(a) To find the man's acceleration, we need to calculate the tension in the rope. Using Newton's second law, the force acting on the man is his weight minus the tension in the rope, and the acceleration is that force divided by his mass. So, the tension is (75 kg)(9.8 m/s²) - (225 kg)(1.68 m/s²) = 425 N, and the man's acceleration is (75 kg)(9.8 m/s²) - 425 N) / 75 kg = 1.68 m/s².

(b) To find the angular acceleration of the cylinder, we can use the equation τ = Iα, where τ is the torque, I is the moment of inertia, and α is the angular acceleration. The torque is equal to the tension times the radius of the cylinder, and the moment of inertia of a solid cylinder is (1/2)MR². Substituting the values, we get τ = (425 N)(0.4 m) = 170 N m, I = (1/2)(225 kg)(0.4 m)² = 7.2 kg m², and α = τ/I = 170 N m / 7.2 kg m² = 3.73 rad/s².

(c) If the mass of the rope were not neglected, the moment of inertia of the system would increase, causing the angular acceleration to decrease as the man falls. The rope would add mass that must be rotated, making it harder to turn the cylinder. The effect would be more pronounced if the rope were thick or if the man fell a greater distance.

To know more about the cylinder refer here :

https://brainly.com/question/13833404#

#SPJ11

The effective resistance of the Parallel circuit is 3 ohms.

option B.

In a parallel circuit, the sum of the currents through each path is equal to the total current that flows from the source.

The total resistance or effective resistance in a Parallel circuit with the following formula:

1/Rt = 1/R1 + 1/R2

where;

1/Rt = 1/4 + 1/12

1/Rt = (3 + 1 ) / 12

Rt = ( 12 ) / ( 4 )

Rt = 3 ohms

Learn more about effective resistance here: https://brainly.com/question/11416040

#SPJ1

a. The Aya's weight on Earth is 441 Newtons.

b. The Aya's mass on the moon would still be 45 kg.

c. Aya's weight on the moon is 72 Newtons.

a. Ayas weight on Earth can be calculated using the formula:

Weight = mass * gravitational acceleration

The gravitational acceleration on Earth is 9.8 m/\(s^2\).

Plugging in the given mass:

Weight = 45 kg * 9.8 m/\(s^2\) = 441 N

Therefore, Ayas' weight on Earth is 441 Newtons.

b. Aya's mass remains the same on the moon as it does on Earth. Therefore, Aya's mass on the moon would still be 45 kg.

c. To calculate Aya's weight on the moon, we need to consider the gravitational acceleration on the moon. The gravitational acceleration on the moon is approximately 1.6 m/\(s^{2}\). Using the same formula:

Weight = mass * gravitational acceleration

Weight = 45 kg * 1.6 m/\(s^{2}\) = 72 N

Therefore, Aya's weight on the moon is 72 Newtons.

know more about Newtons here:

https://brainly.com/question/29601160

#SPJ8

Answer:

Ionic bonds are formed between cation and anions . A cation is formed when a metal ion loses valence electron while an anion is formed when a non-metal gains a valence electron.

Referring to the sketch of a planet around the sun, Area A is three times that of Area B the time \(t_{a}\) is three times \(t_{b}\) .

The orbit of an object is its course through space. Kepler first believed that planets' orbits were circular, but this incorrect assumption prevented him from discovering orbits that were consistent with Brahe's observations. He ultimately learned from the data for Mars that its orbit resembled an elliptical version of a slightly flattened circle. The ellipse is the most basic closed curve after the circle and is a member of the conic section family of curves.

This characteristic proposes a quick method for creating an ellipse. Two tacks are inserted into a drawing board through a sheet of paper, and the ends of a loop of string are wrapped around them to create slack by a planet.

Learn more about planet

brainly.com/question/14581221

#SPJ4

They can have an impact on physical health, encourage self-esteem as well as a sense of community, and support the growth of social and problem-solving abilities.

We develop trust and a sense of support in relationships that are strong and positive.Being surrounded by people with whom we can share both good and bad moments also can help us control our stress levels when circumstances are rough.From their own families, children initially learn about connections.

A student's feeling of belonging may enhance if they feel linked to their classmates.Students are more likely will display resilience if they feel supported.A sense or camaraderie can be fostered by supportive connections.

To know more about survey visit:

https://brainly.com/question/17373064

#SPJ1

The gravitational force of a star on planet 2 orbiting it is half that of planet 1.

Newton's gravitational law formula for gravitational force between two objects

\(F = G \frac{M \: m}{r^2}\)

Given

Compare the gravitational force on two condition.

\(\frac{f1}{f2} = \frac{G \frac{M \: m_1}{r_1^2}}{G \frac{M \: m_2}{r_2^2}}\)

\(\frac{f1}{f2} = \frac{\frac{m_1}{r_1^2}}{\frac{m_2}{r_2^2}}\)

\(\frac{f1}{f2} = \frac{m_1 \: r_2^2}{m_2 \: r_1^2}\)

\(\frac{f1}{f2} = \frac{m_1 \: (2r_1)^2}{2m_1 \: r_1^2}\)

\(\frac{f1}{f2} = \frac{4r_1^2}{2r_1^2}\)

\(\frac{f1}{f2} = \frac{2}{1}\)

The ratio of gravitational force f1 : f2 = 2 : 1

2f2 = f1

\(f2 = \frac{f1}{2}\)

\(f2 = \frac{1}{2} f1\)

Learn more about gravitational force here: https://brainly.com/question/24783651

#SPJ4

what force did the ground exert on the capsule during the crash: Answer : F = 470.08 * W .

 lets assume force exerted by the soil on the capsule is F

so total kinetic energy of the capsule just before the hit would be used against the Force exerted by the soil ..

so                        K.E = W   ........1

so                    1/2 \(mv^{2}\) = \(f * x\)     ............2

so put all the values an dcalculate force exerted..

                1/2  * 210 * ( 311000/ 60* 60)2 = F *0.81

so                    F = 967431.13 N    ...............3

: F = 967431.13 N

               so weight of the capsule..

                        W   = 210 * 9.8 = 2058 N   ..............4

so from equation 3 and 4..

                  F = 470.08 * W   .............5

Answer : F = 470.08 * W

Kinetic energy is the energy an object has because of its movement. If we have any desire to speed up an object, then we must apply a power. Applying power requires us to take care of business. After work has been finished, energy has been transferred to the object, and the object will be moving with another constant speed.

to know more about kinetic energy click here:

https://brainly.com/question/25959744

#SPJ4

Answer:

3.5 m/s^2

Explanation:

Acceleration is  Δv / Δt

   accel = 14 m/s  /  4 s = 3.5 m/s^2

The cost of staffing work schedules is a topic covered by the economics subfield of ergonomics. An operations chart, often known as a right-hand/left-hand chart, highlights unnecessary movement and downtime.

Employees' working conditions may impact their quality of life, but it has little bearing on how well they perform or how safe they are.

Extent flexibility is the type of flexibility required when a profession necessitates extremely wide motions.

In jobs dispersed over longer time periods, extent flexibility is essential whereas dynamic flexibility is needed for shorter time periods.

Simple movements, using movement as the main method in physical education.

To know more about movement

https://brainly.com/question/14421723

#SPJ4

Answer:

The work done is -176.4 J.

Explanation:

Given that,

Mass = 1.0 kg

An elevation of  2 m to an elevation of 20 m.

Suppose,  Find the work done by the gravitational field of the earth?

We need to calculate the force

Using formula of force

\(F=mg\)

Put the value into the formula

\(F=1.0\times9.8\)

\(F=9.8\ N\)

We need to calculate the displacement

Using formula of displacement

\(Displacement = s_{2}-s_{1}\)

\(s=20-2=18\ m\)

The direction of displacement is upward.

Since gravitational force is downwards and displacement is upwards,

Then the angle is 180°.

We need to calculate the work done

Using formula of work

\(W=f\cdos s\cos\theta\)

\(W=9.8\times18\cos180\)

\(W=-176.4\ J\)

Hence, The work done is -176.4 J.

Answer:

yes

Explanation:

moving earth makes us stand on ground

Answer:

the rotation of the earth can affect your weight but not gravity

Answer:

Nitrogen is de solvent while others are the solute

Answer:

Ally has a harder time

ally takes more time

juan is quick

juan is more experienced

if none of those are awnser choices what are the awnser choices?

Explanation:

Answer:

A

Explanation:

Given that two balls are in motion. A 2-kg ball moving at 4m/s and a 4-kg ball moving at 2m/s, which one has greater kinetic energy? a. 2 kg ball moving at 4 m/s c. Both balls have the same KE b. 4 kg ball moving at 2 m/s d. Cannot be determined

The formula for kinetic energy is :

K.E = 1/2mv^2

A 2-kg ball moving at 4m/s will have kinetic energy of 1/2 × 2 × 4^2

K.E = 16J

and a 4-kg ball moving at 2m/s will have kinetic energy of 1/2 × 4 × 2^2

K.E = 2 × 4

K.E = 8J

which one has greater kinetic energy? Definitely it is a 2 kg ball moving at 4 m/s. Since 16J is greater than 8J. The correct answer is A.

The energy which we obtained from the moving particle is called kinetic energy.  According to the conservation of energy, the energy can neither be created nor be destroyed.

Hence, the formula used in the question is:- \(K.E =\frac{1}{2} mv^{2}\) .

Therefore, the kinetic energy of the ball moving the 2kg is 16J.

Hence the Kinetic energy of the ball moving the 4 kg is 8J.

For more information, refer to the link:-

https://brainly.com/question/12669551

Answer:

False.

Explanation:

A warm up is stretching in the beginning.

Answer:

The correct answer is "The reactions stop once equilibrum is achieved"

Explanation:

A system is said to have attained equilibrium when the rate of forward reaction is the same/equal to the rate of backward reaction.  The reaction below shows a chemical reaction that is at equilibrium

2N₂O₅ (aq) ⇄ 4NO₂ (aq) + O₂ (aq)

An equilibrium reaction is always a reversible reaction. When the system is at equilibrium (when there is a balance), the concentration of the reactants and products do not change despite the fact that reaction does not stop; what happens however is that the rate at which the reactant(s) are formed (backward reaction) will be equal to the rate at which the product(s) are formed (forward reaction).

From the explanation above, it can be deduced that "The reactions stop once equilibrum is achieved" is a misconception about a system in chemical equilibrium.

Answer:

The outside layer is the wettest.

Explanation: