A 15 kilogram mass is traveling with a velocity of 2.7m/s. What is the object's kinetic energy?

Answer:

Explanation:

same idea as before Liam,  first, find the parallel resistance in 35 || 20

(35*20)  / (35+20)  = 700 / 55  = 12.727272 ohms

now add the  12.727272 + 15 = 27.727272 ohms total resistance

V = IR

10 = I *    27.727272

10 / 27.727272 = I

0.360655 = I

V = IR  (again, but across the 15 ohm resistor)

V =     0.360655 * 15      

V = 5.4098                

Answer:

34.34 °C

Explanation:

From the question,

Heat lost by the silver block = heat gained by the iron block.

cm(x-y) = c'm'(y-z)................... Equation 1

Where c = specific heat capacity of the silver block, m = mass of the silver block, c' = specific heat capacity of the iron, m' = mass of the iron. x = initial temperature of the silver block, z = initial temperature of the iron,  y = final temperature of the mixture.

make y the subject of the equation

y = (cmx+c'm'z)/(cm+c'm')............... Equation 2

Given: c = 50 g, c = 0.2350 J/g·°C, x = 100°C, m' = 50 g, c' = 0.4494 J/g.°C, z = 0°C

Substitute these values into equation 2

y = [(50×0.2350×100)+(50×0.4494×0)]/[(50×0.2350)+(50+0.4494)]

y = 1175/(11.75+22.47)

y = 1175/34.22

y = 34.34 °C

The mass of the object is approximately 2.04 kg. It can also be expressed as 2040 grams or 0.00204 metric tons (assuming the metric system of units is used).

To calculate the mass (m) of an object with a weight (w) of 20 N, we use the formula m = w/g, where g is the acceleration due to gravity. The value of g is approximately 9.81 m/s².

Using this formula, we can calculate the mass as follows:

m = 20 N / 9.81 m/s²

m ≈ 2.04 kg

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Answer:

100 feet

Explanation:

The refrigerant is a 100% pure vapour when it reaches its final condition. As a result, m v = m = PV is the mass of vapour in the final state.

Refrigerant 134a is originally present as a two-phase liquid-vapor combination at 10 degrees Celsius in a closed, rigid tank with a volume of 1.5 m3. In its ultimate stage, the refrigerant is heated to a temperature of 50°C and a quality of 100%.

Refrigerant-134a is mixed in saturated liquid and vapour form in a rigid tank at 26 OC. The tank's volume is 2.6 m3, and heat is delivered there until the refrigerant vaporises to saturation at 56%C.

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The magnitude of the average velocity of the woodchuck can be found by calculating the total displacement and dividing it by the total time elapsed.

In this case, the woodchuck runs 19 m to the right and then 12 m to the left. The total displacement is the difference between these two distances, which is 19 m - 12 m = 7 m to the right.

The total time elapsed is the sum of the time taken to run to the right and the time taken to run to the left, which is 4.8 s + 5 s = 9.8 s.

To find the average velocity, we divide the total displacement by the total time:

Average velocity = Total displacement / Total time = 7 m / 9.8 s ≈ 0.714 m/s.

Therefore, the magnitude of the average velocity of the woodchuck is approximately 0.714 m/s.

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Answer:

32

Explanation:

Answer:

\(\huge\boxed{\sf S = 2.25\ m}\)

Explanation:

Speed = v = 1.5 m/s

Time = 1.5 s

Distance = S = ?

S = vt

S = (1.5)(1.5)

\(\rule[225]{225}{2}\)

Answer:

A

Explanation:

Answer:

Ottoman

Explanation:

siri told me after I asked

To determine if the bearing diameters are normally distributed at the 5% significance level, we can use a Chi-square goodness-of-fit test. Here's a step-by-step explanation:

1. Calculate the expected frequencies under the assumption of a normal distribution with a mean of 10.00 mm and a standard deviation of ±0.10 mm. You can use a standard normal distribution table or software to find the probabilities for each interval and then multiply these probabilities by the sample size (300) to obtain the expected frequencies.

2. Compare the observed frequencies (from the given frequency distribution) with the expected frequencies calculated in step 1.

3. Calculate the Chi-square statistic using the formula: χ² = Σ [(Observed frequency - Expected frequency)² / Expected frequency] for each interval.

4. Determine the degrees of freedom for the test. This is equal to the number of intervals minus one.

5. Find the critical value for the Chi-square distribution with the determined degrees of freedom and a significance level of 5%.

6. Compare the calculated Chi-square statistic with the critical value. If the calculated value is greater than the critical value, reject the null hypothesis and conclude that the bearing diameters are not normally distributed.

If the calculated value is less than the critical value, fail to reject the null hypothesis and conclude that there is not enough evidence to say that the bearing diameters are not normally distributed.

Following these steps will help you determine if the bearing diameters are normally distributed at the 5% significance level.

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The object is known as buleshift.

Object is a type of thing that can be seen or touch but it's is never alive .

When an object is moving to the  away from us, the light from the object is known as if the  redshift, and when an the  object is moving to the  towards us, the light from to  the object is known as of the  blueshift. Astronomers use by the  redshift and blueshift to deduce how far an object is away from Earth, in the  concept of key to charting by its  the universe's expansion.

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No, the glancing incident or near normal incidence does not result in a higher percentage of reflected light.

The percentage of reflected light is determined by the reflectivity of the surface and the angle of incidence. If the angle of incidence is closer to normal, then the reflected light will be more concentrated and will have a higher intensity, but the percentage of reflected light will remain the same.

The term "incidence" describes the emergence of new cases of illness or damage within a community within a predetermined time frame.

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Answer:

Biosphere

Explanation:

Plants release the biosphere into the atmostphere. :)

Answer:The Oort Cloud is about 70 000 times as far

Answer:

10 vibrations per second

Explanation:

Answer: Oceanic crust, the outermost layer of Earth's lithosphere that is found under ... Sort out the facts and see how deep your knowledge goes in this quiz of the world's oceans. ... They commonly are thin (only about 10 cm [4 inches] thick) and cover a ... km (85 square miles) of seafloor to an average depth of 70 metres (230 feet).

Explanation:

When the velocity of a particle moving along an axis is known, the instantaneous acceleration equal to zero is given as 0.6t.

We estimate the average speed between two places in time separated by t while allowing t to decrease. The outcome is the velocity function's derivative, v. (t).

The slope of the tangent line to the graph at any given location on the graph corresponds to the instantaneous acceleration there. The instantaneous acceleration of the particle is equal to 0 when this line is horizontal and has a slope of 0. According to the plot, these times correlate to the velocity function's extrema, which can be found at t = 1.75, 2.75, 3.25, and for all t = 4.

t = 0.6 is the most likely choice.

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The types of forces that dominate are the viscous forces. It stops when the bacterium stops swimming due to the viscous forces that surround it.

A bacterium with a Reynolds number of 10⁻⁵ is considered a low Reynolds number organism. In this regime, viscous forces dominate over inertial forces.

This means that the fluid surrounding the bacterium is more resistant to motion than the bacterium itself. As a result, the bacterium must use flagella or other means to generate enough force to propel itself through the fluid.

When the bacterium stops swimming, it will gradually come to a stop due to the viscous forces that surround it. These forces will act to slow the bacterium down until it comes to a complete stop.

The bacterium may also experience Brownian motion, which is the random movement of particles in a fluid due to collisions with other molecules. This can cause the bacterium to move in a random manner until it eventually comes to rest.

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Answer:

B. chromosphere

Explanation:

Immediately above the Sun's photosphere is the _______, which is the Sun's lower atmosphere. A. core B. chromosphere C. corona D. solar wind

Answer:

1 deg C = 5/9 deg F         (Ex. 212 F - 32) * 5/9 = 100

So deg F = 9/5 deg C = 9/5 * 2.9 = 5.2 deg F

Answer: velocity is the study of how fast an object changes its place, or is displaced.

Explanation: An example would be how fast a basketball reaches the other side of a gym, the acceleration and speed are measured and calculated to find velocity

→ The charge in electron charge Q(e) is equal to the charge in coulombs Q(C) times 6.24150975⋅1018:

1C = 6.24150975⋅10¹⁸e

Q(e) = Q(C) × 6.24150975 × 10¹⁸

Q(e) = 96,500 × 6.24150975 × 10¹⁸

Q(e) = 6.02305690875 × 10²³

which is round off to

→ 6.03 × 10²³ electrons

Answer:

6318 N

Explanation:

From the question given above, the following data were obtained:

Acceleration due to gravity of the moon (gₘ) = 1.62 m/s²

Mass (m) of container = 650 kg

Weight (W) of container on the earth =.?

Next, we shall determine the acceleration due to gravity of the earth. This can be obtained as follow:

Acceleration due to gravity of the moon (gₘ) = 1.62 m/s²

Acceleration due to gravity of the earth (gₑ) =.?

gₘ = 1/6 × gₑ

1.62 = 1/6 × gₑ

1.62 = gₑ /6

Cross multiply

gₑ = 1.62 × 6

gₑ = 9.72 m/s²

Finally, we shall determine the weight of the container on the earth as follow:

Mass (m) of container = 650 kg

Acceleration due to gravity of the earth (gₑ) = 9.72 m/s²

Weight (W) of container on the earth =.?

W = m × gₑ

W = 650 × 9.72

W = 6318 N

Therefore, the weight of the container on earth is 6318 N

Answer:

centripetal force

Explanation:

because this force always compels the body to move in circle

The results in terms of wavelength, velocity, and frequency i.e (L,f,v) are as follow,.

(a) λ = v/f

(b) The value of the first minimum will be \(x =\sqrt{\frac{v^2}{4 f^2}+\frac{v L}{f}}\)

(c) The position for the first maxima of 2nd speaker = \($$x=\sqrt{\frac{v}{f}\left(\frac{v}{f}+2 L\right)}$$\)

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is often defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).

(a) Relation among velocity, wavelength and frequency can be defined the expression: v = fλ

From above, we can write, (λ) (wavelength) can  be equal to velocity (v) / Frequency (f)

So, λ = v/f

(b) path difference can be determined by using the expression: \(\Delta x=x_2-x_1 \\\)

\(\Delta x=\sqrt{L^2+x^2}-L\end{aligned}$$\)

So, for the first minimum, we can conclude the following:

\($\left\{n x=\frac{d}{2}=\frac{v}{2 f}\right.$$$\frac{v}{2 f}=\sqrt{L^2+x^2}-L$$\)

\(\left(\frac{v}{2 f}+L\right)^2 & =L^2+x^2 \\\\x^2 =\frac{v^2}{4 f^2}+L^2+\frac{v L}{f}-L^2 \\\\x =\sqrt{\frac{v^2}{4 f^2}+\frac{v L}{f}}\)

(c) for first order maxima

\($$\begin{aligned}& \Delta x=\lambda \\& \frac{v}{f}=\sqrt{L^2+x^2}-L\end{aligned}$$\)

\($$\begin{aligned}x^2 & =\frac{v^2}{f^2}+L^2+\frac{2 V L}{f}-L^2 \\x & =\sqrt{\frac{v^2}{f^2}+\frac{2 v L}{f}}\end{aligned}$$\)

So, the position for the first maxima of 2nd speaker will be:

\($$x=\sqrt{\frac{v}{f}\left(\frac{v}{f}+2 L\right)}$$\)

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The missing diagram is attached below:

Answer:

C

Explanation:

Answer:

solid

Explanation:

In a solid, particles are packed tightly together so they don't move much. The electrons of each atom are constantly in motion, so the atoms have a small vibration, but they are fixed in their position. Because of this, particles in a solid have very low kinetic energy.

The information given on the X-axis of the graph attached is the years from 1920-2005 (option B).

A graph in mathematics or statistics is a data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set.

A graph consists of two axes namely; X-axis and Y-axis. The x-axis on a graph is usually drawn left to right and usually shows the range of values of an independent variable.

On the other hand, the Y-axis is the axis on a graph that is usually drawn from bottom to top and usually shows the range of values of variable dependent on one other variable.

Therefore, according to the graph illustrated above, the x-axis shows the years from 1920-2005.

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Answer:

60 000 N

Explanation:

1 pa = 1 N/m^2

you have 300 000 of these   = 300 000 N /m^2

    but only an area of .2 m^2

                    300 000 N / m^2  * .2 m^2 = 60 000 N