in raising an object to a given height by means of an inclined plane, as compared with raising the object vertically, there is a reduction in

Answer:

M= mv= 10kg x 37 m/s= 370 Kg x m/s

Answer:

First graph

Explanation:

The inequality is

y < -x² + 4x + 5

The line that separates the regions is the graph of the parabola y = -x² + 4x + 5

So, this is a parabola that opens down because the coefficient of x² is -1 and it is negative.

Therefore, the possible options are the first and the third graph

Then, let's see if the point (x, y) = (0, 0) belongs to the region

y < -x² + 4x + 5

0 < -0² + 4(0) + 5

0 < 5

Since the inequality is satisfied, the point (0, 0) belongs to the region and the answer is the first graph.

An ectopic heartbeat is an irregular heartbeat that happens when the heart's sinoatrial node (SA node), which is its normal heartbeat pacemaker, is disrupted. Ectopic beats originate from a location outside of the SA node, disrupting the normal heart rhythm. When it comes to the various types of ectopic beats, the most common is premature ventricular contraction (PVC).

If the ectopic impulse arises from the middle of the right atrium, the P wave will be abnormal. This occurs when the heart's ventricles experience an unexpected electrical impulse, causing them to contract prematurely. The P wave is a wave that appears on an electrocardiogram (ECG) and represents the electrical activity of the atria. The sinoatrial node generates a normal P wave, which spreads through both atria and then travels to the atrioventricular node, which slows the impulse and transmits it to the ventricles. P’ waveIf the ectopic impulse arises from the middle of the right atrium, the P' wave is abnormal.

As a result, the ECG can display the following:P waves with a single, smooth contour that are narrower than normal, P waves that have a pointed apex and are taller than normal, and P waves that merge with other waves, making them indistinguishable on the ECG.P prime waves, which are visible on an ECG, are related to supraventricular beats. They're usually seen in the early part of a supraventricular tachycardia event, which is a fast heart rate originating from the atria.

Learn more about pacemaker here ;

https://brainly.com/question/31622614

#SPJ11

Answer:

1) To find the volume of the wood block, divide the mass by the density:

Volume = 583.3 g / 2.7 g/cm³

Volume = 216.24 cm³

2) To find the density of the butter, divide the mass by the volume:

Density = 319 g / 350 cm³

Density = 0.9114 g/cm³

Explanation:

When a spherical Gaussian surface completely encloses three charges, the electric flux through the surface can be found using Gauss's law.

According to Gauss's law, the electric flux through a closed surface is equal to the charge enclosed divided by the permittivity of the medium. Therefore, the electric flux through the surface can be calculated as follows:
Electric flux = (q1 + q2 + q3) / ε0
Substituting the given values of the charges, we get:
Electric flux = (2.03 - 3.28 + 4.89) / ε0 = 3.64 / ε0
Now, if a fourth charge is added to the situation and we want the electric flux through the same spherical Gaussian surface to be zero, then the net charge enclosed by the surface should be zero. This means that the magnitude of the fourth charge should be equal to the sum of the magnitudes of the three existing charges, and its sign should be opposite to the sum of the signs of the existing charges. Mathematically, we can write:
|q4| = |q1| + |q2| + |q3| = 2.03 + 3.28 + 4.89 = 10.2
q4 = - (q1 + q2 + q3) = -2.03 + 3.28 - 4.89 = -3.64

According to Gauss's law, the total charge encased within the surface equals the total electric flux travelling through the closed surface. Mathematical illustration,

Electric flux = q/(permittivity of vacuum) where q=total charge enclosed inside surface

As a result, a closed surface should be used to estimate the integral in Gauss's law.

Learn more about Gauss's law here

https://brainly.com/question/14767569

#SPJ11

Answer:

sequence

Explanation:

sequences are the way in which things are ordered, for example: 1, 2, 3, 4 is a sequence:)

Answer:

B. Digital Signal

Explanation:

I am not Wrong.

t1 + t2 = 8.60 ms

4.2 mm = (t1 / t2) * d2

We can solve these equations simultaneously to find the values of t1, t2, and d2. Once we have those values, we can calculate the velocity of sound using the equation v = d / t.

v = d / t

where:

v is the velocity of sound,

d is the distance traveled by the sound wave, and

t is the time taken for the sound wave to travel that distance.

In this case, we have two distances: the length of the metal bar (4.2 mm) and the distance traveled through the air. Since the sound travels through the metal and then through the air, the total distance traveled is the sum of these two distances.

Let's assume the time taken for the sound wave to travel through the metal is t1 and the time taken for it to travel through the air is t2. Given that the pulses are separated in time by 8.60 ms (which is the sum of t1 and t2), we can write the following equation:

t1 + t2 = 8.60 ms

Now, we need to find the ratio of the distances traveled by the sound wave through the metal and the air. Since the speed of sound is the same in both media (metal and air), we can write:

d1 / d2 = t1 / t2

where d1 is the distance traveled through the metal (4.2 mm) and d2 is the distance traveled through the air.

Rearranging the equation, we have:

d1 = (t1 / t2) * d2

Substituting the given values, we get:

4.2 mm = (t1 / t2) * d2

Now, we have two equations:

t1 + t2 = 8.60 ms

4.2 mm = (t1 / t2) * d2

We can solve these equations simultaneously to find the values of t1, t2, and d2. Once we have those values, we can calculate the velocity of sound using the equation v = d / t.

learn more about sound wave here:

https://brainly.com/question/31851162

#SPJ11

Answer:

Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.

Explanation:

Hope this helps      :)

write abt gobal warmingExplanation:

The maximum velocity of a particle on the string is approximately 0.98 m/s.

To find the maximum velocity of a particle on the string, we can use the given tension, linear density, amplitude, and wavelength values.

Given:

- Tension (T) = 55.0 N

- Linear density (μ) = 4.70 g/m = 0.00470 kg/m (converted to kg/m)

- Amplitude (A) = 3.00 cm = 0.03 m (converted to meter)

- Wavelength (λ) = 2.10 m

First, we can find the wave speed (v) using the equation v = √(T/μ):

v = √(55.0 N / 0.00470 kg/m) ≈ 34.66 m/s

Next, we can find the angular frequency (ω) using the equation ω = 2πv/λ:

ω = (2π * 34.66 m/s) / 2.10 m ≈ 32.74 rad/s

Finally, we can find the maximum velocity of a particle on the string (v_max) using the equation v_max = Aω:

v_max = 0.03 m * 32.74 rad/s ≈ 0.98 m/s

So, the maximum velocity of a particle on the string is approximately 0.98 m/s.

To know more about velocity, refer here:

https://brainly.com/question/1482529#

#SPJ11

Answer:

The laws of liquid pressure are  

(i) Pressure inside the liquid increases with the depth from the free surface of the liquid.

(ii) Pressure is same at all points on a horizontal plane, in case of stationary liquid.

(iii) Pressure is same in all directions about a point inside the liquid.

(iv) Pressure at same depth is different in different liquids. It increases with the increase in the density of the liquid.

(v) A liquid will always seek its own level.

A Fluid is any liquid or gas or generally any material that cannot sustain a tangential, or shearing, force when at rest.  

Explanation:

Answer:

Efficiency: 0.4 (40%)

Explanation:

The efficiency of a simple machine is given by the ratio

n = w¹/w²

where

w² is the input work of the machine

w¹ is the output work of the machine

For the machine in this problem, we have:

w¹ = 800j is the output work

w² = 2000j is the input work

Therefore, the efficiency of the machine is

n = 800/2000 = 0.4

Which can be also written as percentage:

n = 0.4 × 100 = 40%

hope it helps you

Answer:

As = 7.33 [m/s]

Explanation:

To solve this problem we must use the definition of the average speed, which is equal to the relationship between the distance over time.

As = x/t

where:

As = average speed [m/s]

x = distance = 132 [m]

t = time = 18 [s]

As = 132/18

As = 7.33 [m/s]

Answer:

The total distance covered is 3 km and the displacement is 2.24 km.

Explanation:

For the total distance covered by Anthony, we just add all of the distances.

1 km (going east) + 1 km (going east again) + 1 km (going south) = 3 km

Hence, the his total distance covered when he went to the pizza place is 3 km.

Solving for the displacement is a different matter. We cannot just add all of the distances. From analysis of the problem, Anthony traveled and formed a right triangle. He traveled 1 km east twice, making it 2 km east in total, then he traveled 1 km south.

When dealing with a right triangle with 2 sides given (for this problem the two sides are the 2 km east and the 1 km south), we use the Pythagorean Theorem.

Solution:

c² = a² + b²  (Pythagorean Theorem)

c will be the longest side of the right triangle

a and b will be the other sides of the right triangle

c = √ (a² + b²)

c = √ (2² km + 1² km)

c = √5 km

c = 2.2361 km ≈ 2.24 km

Therefore, the displacement of Anthony is 2.24 km.

Read more about right triangle here:

brainly.ph/question/2449553

Know more about Pythagorean Theorem here:

brainly.ph/question/77971

The combination of frequencies that produce the lowest beat frequency is 10 Hz and 15 Hz. The correct option is C.

To determine the beat frequency, we subtract one frequency from the other and take the absolute value. The beat frequency is the difference between the frequencies involved in the interference pattern created by two sound waves.

Let's analyze each option:

A. 500 Hz and 501 Hz: The beat frequency would be 501 Hz - 500 Hz = 1 Hz.

B. 10 Hz and 20 Hz: The beat frequency would be 20 Hz - 10 Hz = 10 Hz.

C. 10 Hz and 15 Hz: The beat frequency would be 15 Hz - 10 Hz = 5 Hz.

D. 500 Hz and 600 Hz: The beat frequency would be 600 Hz - 500 Hz = 100 Hz.

Therefore, option C (10 Hz and 15 Hz) produces the lowest beat frequency of 5 Hz compared to the other options.

To learn more about Frequency click:

brainly.com/question/1292129

#SPJ1  

Answer:

because sound needs medium to transmit.

The sound is produced by vibration and if there is no medium there is no vibration and no vibration means no sound.

The statement is likely referring to a meteorological phenomenon known as a cold front, which occurs when a mass of colder air moves into an area occupied by warmer air.

As the cold air pushes into the warmer air, it lifts the warm air, causing it to cool and condense into clouds and precipitation.

As the cold air mass moves closer to the surface, it creates a boundary known as a front. At the leading edge of the front, the cold air pushes outwards in all directions, producing a gusty wind known as a gust front or outflow boundary.

This boundary is often associated with a sharp temperature drop and a change in wind direction.

The gust front or outflow boundary can be quite strong and can produce sudden and intense winds that can cause damage to structures and trees.

In severe thunderstorms, the outflow boundary can sometimes act as a mini cold front, lifting warm, moist air ahead of it to produce additional thunderstorms along the boundary.

To know more about cold front refer here

https://brainly.com/question/29770786#

#SPJ11

The equation given as:

\(\(\[ \gamma_{d}\)

=\(\frac{G_{s} \gamma_{w}}{1+e} \]\)\)

needs to be rewritten in terms of 6. We know that e = 2.71 approximately,  the equation in terms of 6 is:

\(\(\[\gamma_d = \frac{6G_s\gamma_w}{22.26}\]\)\)

This new equation gives the value of γd in terms of 6.

so we will substitute this value in the equation to get:

\(\[\gamma_d = \frac{G_s\gamma_w}{1+2.71}\]\)

Simplifying the expression by adding the denominator terms and getting a common denominator, we get:

\(\(\[\gamma_d = \frac{G_s\gamma_w}{3.71}\]\)\)

Now, we can divide both sides of the equation by 3.71 to isolate γd on one side and write the equation in terms of 6, as follows:

\(\[\gamma_d\)

\(= \frac{G_s\gamma_w}{3.71} \times \frac{6}{6}\] \[\gamma_d \(\)

\(= \frac{6G_s\gamma_w}{22.26}\]\)\)

To know more about denominator visit:

https://brainly.com/question/15007690

#SPJ11

Answer:

A

Explanation:

Amplitude = height of the wave = 1

Wavelength = 3

They are slightly shifted.

The first statement is the correct one.  Don't make me type the whole thing out.

Answer:

B small positive charge

Explanation:

Answer:

crest moon

Explanation: because you ar etalking about moons

Answer:

Benjamin Franklin, Michael Faraday, and Thomas Edison made important contributions to our understanding of and harnessing of electricity.

The net direction on the cart, if a person pulls on a cart to the right with a force of 10n and a second person pulls to the left with a force of 3n, is 7n to the right.

The net force direction can be determined by finding the net vector sum of the forces acting on it.

Since the first person pulled the cart to the right with a force of 10n,

Assuming the right direction as positive, this force can be represented as a vector ⇒(+)10n

Similarly, as the second person pulls the cart to the left, the force can be represented as a vector ⇒ (-)3n,

∴ Net force = Net vector sum of the forces

                   =(+10n) + (-3n)

⇒Net force = +7n

Thus, the net direction on the cart, if a person pulls on a cart to the right with a force of 10n and a second person pulls to the left with a force of 3n, is 7n to the right.

Learn more about force vectors on:

https://brainly.com/question/17069586

Answer: 7n

Explanation:

The toxicity of CFCs is due to their ability to reacts with the ozone molecules found in the stratosphere resulting in the depletion of the ozone layer.

CFCs are the short name or acronyms for the chemicals known as chlorofluorocarbons.

These are chemicals which have been used as refrigerants in the past because of their non-toxicity as well other useful properties which makes them good as refrigerants.

However, despite being non-toxic, when CFCs are released into the atmosphere and reach the stratosphere layer of the atmosphere, they have been found to be toxic. Their toxicity is due to their ability to reacts with the ozone molecules found in the stratosphere.

This reaction with ozone molecules in the ozone layer results in the depletion of the ozone layer.

In conclusion, CFCS are chemicals which are used as refrigerants. The are non-toxic but become toxic by degrading the ozone layer of the atmosphere.

Learn more about CFCs at: https://brainly.com/question/15737835

#SPJ1

Answer:

Change the terrain

Explanation:

independent variable is the cause and the change in terrain will change the outcome

Spectrophotometry applications can be used to: measure the absorbance, reflectance and transmission of light by gases, liquids, and solids.

Branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength is called spectrophotometry.

Spectrophotometry is the quantitative measurement of the interaction of ultraviolet, visible, and infrared radiation with the material and has a impact on a wide field of science and technology.

Spectrophotometry is a method to measure how much chemical substance absorbs light by measuring the intensity of light as beam of light passes through sample solution.

To know more about spectrophotometry, refer

https://brainly.com/question/24864511

#SPJ4

We are given that a skater starts at a height of 2 meters. If we do a balance of energy and assume that there is no friction or any other nonconservative forces we get:

Where:

We can cancel out the mass and the acceleration of gravity:

Substituting the initial height we get:

Therefore, on the other side, he will get to 2 meters in height.