Using the side lengths of △pqr and △stu, which angle has a sine ratio of four-fifths? ∠p ∠q ∠t ∠u

All of the above-mentioned symptoms of cognitive stress except for isolation. Option d is correct.

Mental (cognitive) stress is an emotional/physical strain that causes a person to feel irritated, depressed, angry, anxious, and so on.

Cognitive stress is marked by a variety of moods and/or emotions linked to excessive anxiety about money, overall health, job loss, and so on.

All of the above-mentioned symptoms are markers of cognitive stress. In some circumstances, this condition may exacerbate stress.

Loss of memory, loss of concentration, and poor judgment are symptoms that are markers of cognitive stress.

Social isolation has been linked to a variety of mental illnesses, including increased stress, despair, and anxiety.

Hence all of the above-mentioned symptoms of cognitive stress except isolation. Option d is correct.

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Answer:

D

Explanation:

Answer:

d

Explanation:

theres reason boats dont go in shallow water..

All waves move objects from one location to another. The correct option is D.

A wave is a disturbance or variation that moves energy from point to point in a medium and can take the form of an elastic deformation, a variation in pressure, electrical or magnetic intensity, electrical potential, or temperature, or one complete cycle of such a disturbance.

A wave is a disturbance in a medium that carries energy without causing net particle movement.

It could be elastic deformation, a change in pressure, electric or magnetic intensity, electric potential, or temperature. Every wave transports objects from one location to another.

Wind is the most common cause of waves. Wind-driven waves, or surface waves, are created by the friction between wind and surface water.

Thus, the correct option is D.

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Answer:

Force = Mass x Acceleration

Explanation:

About half of the gas and dust that fills interstellar space is concentrated in dense regions called molecular clouds.

Interstellar space is not completely empty but contains gas and dust spread throughout. Molecular clouds are regions within interstellar space where the gas and dust are highly concentrated. These clouds are composed mainly of molecular hydrogen (H₂) along with other molecules like carbon monoxide (CO) and various organic compounds.

Molecular clouds are dense and cold regions that serve as the birthplaces of stars. Within these clouds, gravity causes the gas and dust to clump together, forming denser regions known as molecular cloud cores. These cores can further collapse under their own gravity, leading to the formation of protostars and ultimately stellar systems.

The presence of dense molecular clouds is crucial for the process of star formation and the evolution of galaxies. They provide the necessary raw materials from which new stars and planetary systems can emerge, making them important objects of study in astronomy and astrophysics.

Therefore, approximately 50% of the gas and dust in interstellar space is found in concentrated areas known as molecular clouds, which play a vital role in star formation and galactic evolution

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Explanation:

P =F * v

F = m * a = 65 kg * 9.81 ms^-2 * 12 passengers

v = d/t = 150m / 64 s

I think you can calculate and substitute this units should be watts

The power needed to transport the passengers through this height is 17.933 KW or 17933 Watts.

Power can be defined as the rate at which work is done by an object. Power can be calculated by the formula:

P = W × t

where, P = power, w = work done, and t = time taken.

The SI unit for power is the watt (W), where 1 watt power is equal to 1 joule/second (1W = 1J/s). Because, the work done by an object is the energy transfer by the object, and power is also the rate at which energy is expended.

P = F × v

where, P = Power, F = Force, and V = velocity of the object

F = m × a = 65 kg × 9.81 ms⁻² × 12 passengers = 7651.8

v = d/t = 150m / 64 s = 2.343

P = 7651.8 × 2.343

P = 17,933.90

P = 17.933 KW

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Answer:

Explanation:

log10 function is required to convert dB into intensity of a sound. Both are measures of loudness of a sound and the relationship can be expressed as follows:

dB = 10 log10(I/Io), where Io is 10^-12 W/m^2

Substituting, 82 = 10 log10(I/10^-12)

I = 0.0001585 W/m^2

or 1.58*10^-4 W/m^2

Answer:

Explanation:

82dB = 10log(Intensity/10^-12)

Intensity = 10^-12*10^(82/10)

=10^(-3.8)

=1.585*10^-4 W/m2

To determine the map distances between E and F, E and G, and F and G, we can use the formula:
Map distance = (Number of recombinant progeny / Total number of progeny) * 100

Map distance between E and F:
Number of recombinant progeny (eFG + Efg + eFg + EFG) = 298 + 302 + 99 + 91 = 790
Total number of progeny = Sum of all progeny = 298 + 302 + 99 + 91 + 92 + 88 + 19 + 16 = 1005
Map distance between E and F = (790 / 1005) * 100 = 78.6 mn (rounded to the nearest whole number)
Map distance between E and G:
Number of recombinant progeny (eFG + EFg + EFG + efG) = 298 + 92 + 19 + 88 = 497
Total number of progeny = 1005 (same as before)
Map distance between E and G = (497 / 1005) * 100 = 49.35 mn (rounded to the nearest whole number)
Map distance between F and G:
Number of recombinant progeny (EFG + efG + EFG + efg) = 91 + 88 + 19 + 16 = 214
Total number of progeny = 1005 (same as before)
Map distance between F and G = (214 / 1005) * 100 = 21.29 mn (rounded to the nearest whole number)
Interference Coefficient:
Interference coefficient is not provided in the given data.

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Answer:

Unlike hard disks, which use magnetic charges to represent 1s and 0s, Compact Disks, DVD's or Blue Rays use reflected light.

Explanation:

The way CD's work is that they are hit by a laser beam which is reflected on the surface of the disc. These disks have some valleys and mountains that reflect light differently so the CD player will interpret these differences in reflection as data which will then be turned into music, videos or computer files.

Pressure is a measure of force per unit area:

P = F/A

The water exerts a pressure of 202 kPa = 202,000 Pa on the diver, who has a surface area of 1.50 m². Then the force exerted by the water is F such that

F = PA

F = (202,000 Pa) (1.50 m²)

F = 303,000 N = 303 kN

Answer:the first one is (customer service skills) the second one is (patience) and the third one is (physical strength)

Explanation: I just done it and got it right.

Answer:

the first one is (attention to detail) the second one is(dexterity) the  third one is (patience) and the last one is (stamina)

Explanation:

i got it right

Answer:

No. Because undefined amounts of energy are also released in deformation of the objects, heat released, etc.

Answer:

Physical science

Explanation:

Answer:

TRUE.

Explanation:

Answer:

14°F = 263.15 K

31°F = 272.594 K

71°F = 294.817 K

35°F = 274.817 K

Explanation:

Use the formula 273.15 + ((°F–32)•5)/9

Answer:

A is true ,b is true

Explanation:

Answer:

Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.

Complete question is;

Two identical books are placed on a bookshelf. Book 1 is on a shelf one meter above the floor and Book 2 is on a shelf two meters above the floor.

Which statement best compares the potential energy of the books.

A) Book 2 has twice as much potential energy as Book 1

B) Book 1 has twice as much potential energy as book 2

Answer:

A: Book 2 has twice as much potential energy as Book 1

Explanation:

Formula for potential energy is;

P.E = mgh

Where;

m is mass

g is acceleration due to gravity

h is height

Now, they are identical books and thus will have the same mass while acceleration due to gravity remains constant.

For book 1 which is 1 metre above the floor;

P.E = mg × 1

P.E = mg

For book 2 which is 2 metres above the floor;

P.E = mg × 2

P.E = 2mg

We can see that potential energy for book 2 is twice that of book 1.

Thus,option A is correct.

Answer:

a

Explanation:

We find that the angle of elevation is approximately 5.71°.

To find the angle of elevation from Kim to the fireworks, we can use the tangent function in trigonometry. Given the distance of 4 miles and the height of the fireworks at 0.4 miles, we can set up the following equation:

tan(angle) = (height of fireworks) / (distance to fireworks)

tan(angle) = 0.4 miles / 4 miles

Now, we need to find the inverse tangent (arctangent) to get the angle of elevation:

angle = arctan(0.4/4)

Using a calculator, we find that the angle of elevation is approximately 5.71°.

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The average velocity of the car in m/s for the first leg is 36.2 m/s and the average velocity (in m/s) for the total trip is 7 m/s

Speed is the distance travelled per time taken. The S.I unit is m/s. The average speed is the ratio of the total distance travelled to the to time taken. While velocity is the distance travelled in a specific direction per time taken

Given that a race car traveling northward on a straight, level track at a constant speed travels 0.760 km in 21.0 s. The return trip over the same track is made in 26.0 s.

(a) The average velocity of the car in m/s for the first leg of the run will be

Velocity = (0.760 x 1000)/ 21

Velocity = 760 / 21

Velocity = 36.2 m/s

(b) The average velocity (in m/s) for the total trip will be

36.2 - (0.760 x 1000)/ 26

36.2 - (760) / 26

36.2 - 29.2

7 m/s

Therefore, the average velocity of the car in m/s for the first leg is 36.2 m/s and the average velocity (in m/s) for the total trip is 7 m/s

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Answer:

C. 199.9 s

Explanation:

3 minutes = 3×60 = 180 seconds.

the turtle moves in that time 180×10 = 1800 cm.

in other words the rabbit gave it that much head-start (it does not matter if that was at the begin of in the middle of the race).

the rabbit moves with 10×10cm/s = 100cm/s.

the rabbit needs therefore 1800/100 = 18 seconds for the

1800 cm.

at that time the turtle has added another 18×10 = 180 cm.

for which the rabbit needs 180/100 = 1.8 seconds.

during that time the turtle has added 1.8×10 = 18 cm.

and so on.

in formal mathematics this looks like this :

1800 + 10x = 100x

after x seconds of the rabbit running both will have run the same distance, and it is a tie.

1800 = 90x

x = 20 seconds

so, at that point, the rabbit was actively running for 20 seconds and raced 20×100 = 2000 cm

and the turtle was actively running for 180 + 20 = 200 seconds, and also covered 200×10 = 2000 cm.

but our question tells us that the turtle won by 10 cm.

so, the race was over a little bit before these 200 seconds (for a tie).

this means, the rabbit could not run the last 10 cm for the tie (because the race was over and the turtle had won).

the rabbit would have needed 10/100 seconds for these 10 cm.

as speed = distance/time

we need to divide distance by speed

distance/1 / distance/time

to get time.

so,

10cm/1 / 100cm/s = 10s/100 = 1/10 s

so, we need to deduct this 1/10 s from the 200 seconds of the turtle (and also from the 20 seconds for the rabbit).

the race lasted of course the whole time the turtle was running (while the rabbit was resting, officially still participating in the race with speed 0 for 3 minutes).

and so, the race was 199.9 s long.

The power P that makes the equation \(a=2xt^p\) dimensionally consistent is 1.

When we want to make an equation dimensionally consistent, we need to ensure that both sides of the equation have the same units. In this case, the unit of acceleration is \(m/s^2\), the unit of time is s, and the unit of distance is m. By substituting these units into the given equation, we get:

\(m/s^2 = 2m * s^p\)

Simplifying this expression, we get:

\(s^(^2^-^p^) = m^(^1^-^p^)\)

To make both sides of the equation equal, we need to set the powers of s and m equal to each other. Therefore, we get:

2 - p = 1 - p

Solving for p, we get:

p = 1

Therefore, the power P that makes the equation dimensionally consistent is 1.

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The perceived weight of the passenger is lower than the actual weight if the elevators is decelerating. The elevator falls freely if the cord breaks. In this instance, the mass of the elevator user is 0.

An object ALWAYS moves in the same direction that one's velocity is pointing. Depending if the projectile is climbing towards its peak and falling from its apex, the vertical velocity component is either setting higher downward.

No-Gear Traction Elevator: In this form, the motor and wheel are joined directly. It provides a maximum trip length of about 2000 feet and a velocity of up to two thousand feet per minute. It is the best option for high-rise structures.

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Answer:

It is recommended that you exercise within 55 to 85 percent of your maximum heart rate for at least 20 to 30 minutes to get the best results from aerobic exercise. The MHR (roughly calculated as 220 minus your age) is the upper limit of what your cardiovascular system can handle during physical activity.

(I think) ¯\_(ツ)_/¯

Answer:

10 vibrations per second

Explanation:

Answer:

15.9 s

Explanation:

Power = work / time

 17 w  =   270 j / t      t = 15.9 s

Answer:

The answer is 35.

Explanation:

We use the formula F=ma

Acceleration is the rate of change of velocity over time. The diagram that shows the effect of cutting acceleration by half without changing initial velocity is graph (c)

The equation is given as:

\(v = 2t + 4\)

The first equation of motion is:

\(v = u + at\)

By comparing both equations, we have:

\(u = 4\) --- initial velocity

\(a = 2\) --- acceleration

When the acceleration is cut in half, the new acceleration is:

\(a_{new} = \frac a2\)

\(a_{new} = \frac 22\)

\(a_{new} = 1\)

So, the equation of velocity is:

\(v = u + at\)

\(v = 4 + 1 \times t\)

\(v = 4 + t\)

When \(t = 0\)

\(v = 4 + 0 = 4\)

When \(t = 1\)

\(v = 4 + 1 = 5\)

The graph of velocity that satisfies \(v = 4 + t\) and the values of time (t) and velocity (v) tested above is (c).

See attachment for the diagram (graph)

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Answer:

The value of mass 1, m1= 6/5m

The value of mass 2, m2= 3/5m

Explanation:

case 1:

here tension and the acceleration will be:

for m1;

for m2:

adding the both equations,

2mg - 2T + 2T-mg = 2ma + ma/2

a = 2/5 g

putting the value of a into the equation 1.

mg - T = m* (2/5)g

T = 3/5 ( mg )

now

case 2:

The two identical blocks are released from the rest, the tension remains the same as the case 1.

so,

for m1:

for m2:

adding both equations we get,

2T-m2g + 2m2g - 2T = 0

m2 = m1 / 2

T = m1*g / 2

here we know that

T (case1) = T (case2)

3/5 ( mg ) = m1*g / 2

m1 = 6/5 m

hence

m2 = 3/5 m

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(a) The free-body diagram of the beam with the woman standing x-meters to the right of the first pivot is shown below:

Beam Diagram

(b) The woman is the furthest to the right when the normal force F⃗ N 1 is the greatest. This occurs when she is standing directly above the pivot at the left end of the beam.

(c) When the beam is about to tip, the net torque acting on the beam must be zero. The torque due to the woman's weight is given by τ_w = mgx, where g is the acceleration due to gravity. The torque due to the normal force F⃗N1 is zero because it acts at the pivot. Therefore, we have:

τ_net = τ_w - F_N2*l/2 = 0

Solving for F_N1, we get:

F_N1 = (mgx)/(L-l/2)

When the beam is about to tip, the normal force F⃗N1 is at its maximum value.

(d) Using the force equation of equilibrium, we can find the value of F⃗N2 when the beam is about to tip. The sum of the vertical forces must be zero, so we have:

F_N1 + F_N2 - Mg - mg = 0

Substituting the expression for F_N1 from part c), we get:

F_N2 = Mg + mg - (mgx)/(L-l/2)

(e) Using the result from part c) and the torque equilibrium equation, we can find the woman's position when the beam is about to tip. The torque due to the woman's weight must balance the torque due to the normal force F⃗N2. Therefore, we have:

mgx = F_N2*(L-x)

Substituting the expression for F_N2 from part d), we get:

mgx = (Mg + mg - (mgx)/(L-l/2))*(L-x)

Solving for x, we get:

x = (L*(M+m) - lm)/(2M + 2m - (2m*L)/(L-l))

Substituting the given values, we get:

x = 4.31 m

Therefore, the woman's position when the beam begins to tip is 4.31 meters to the right of the left pivot.

(f) We can check our answer by using a different axis of rotation. Let's choose the pivot at the right end of the beam as the axis of rotation. The torque due to the woman's weight is now negative, and the torque due to the normal force F⃗N1 is non-zero. Therefore, we have:

τ_net = -mg(L-x) + F_N1*l/2 = 0

Solving for F_N1, we get:

F_N1 = (2mgL - 2Mgx - mgl)/(2*l)

Substituting the given values, we get:

F_N1 = 594.0 N

This is the same value we obtained in part (c). Therefore, our answer is consistent with the laws of physics