There are three main types of clouds. the high cirrus clouds, the layered stratus clouds, and what third type of puffy clouds?

Answers

Answer 1

Answer: The third type of cloud is the cumulus cloud

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Current is constant at all points in a parallel circuit

Answers

We have to be a little careful working with this question.   Do you mean
that current is "constant" or do you mean it's "the same current" ?

-- If the energy source for the circuit is supplying DC ... like a battery
   or a solar cell ... then the current is 'constant' at every point in the
   circuit. It's not changing. It's the same now as it was 10 seconds
   ago. But it's NOT necessarily the same amount of current everywhere
   in the circuit.

-- If the energy source for the circuit is not supplying DC ... if it's an
   AC generator, or a charged capacitor, or a function generator ...
   then wherever you look in the circuit, the current is constantly
   changing its value at that point.

-- And if there's any place in the circuit where there are components
   connected in parallel, then the current must have different values
   at different points in the circuit.
   It can't be the same current everywhere.

When Emma pushes a bag with a force of 27 newtons, the coefficient of kinetic friction between the bag and the floor is 0.23. What is the normal force acting on the bag by the floor?

Answers

This can be answered by manipulating the formula for the coefficient of kinetic friction, which is as follows:

Let: μ = coefficient of kinetic friction
F = force
N = normal force

μ = F / N

Substituting the given values:

0.23 = 27N / N
N = 27 / 0.23
N = 117.39 N

In which type of wave do the particles in a medium move perpendicular to the direction that the wave moves? A.transverse waves

B.ocean waves

C.surface waves

D.longitudinal waves

Answers

A.transverse waves....

Squaw Valley ski area in California claims that its lifts can move 49800 people per hour. If the average lift carries people about 190 m (vertically) higher, estimate the maximum total power needed. (Assume an average mass per person of 70 kg.) W

Answers

Answer:

1,803,036.67 W

Explanation:

Data provided in the question:

People per hour that can be moved by lift = 49800

Height of movement, h = 190 m

Average mass per person = 70 kg

Now,

Power = Rate of doing work

Thus,

Power = ΔU

= mgh

here,

m = total mass

g = acceleration due to gravity

Power = (70kg × 49800)(9.8)(190)

Power = 6,490,932,000 J per hour

also,

Watt = Joule/second

Therefore,

Power = 6,490,932,000 ÷ 3600

= 1803036.67 W

Final answer:

To estimate the maximum total power needed for Squaw Valley ski area to move 49800 people per hour on their lifts, we calculate the work done per person per hour and then divide it by the time taken to travel vertically by 190 m. The estimated maximum total power needed is 3.31 x 10^8 W.

Explanation:

To estimate the maximum total power needed to move 49800 people per hour on a skilift at Squaw Valley, we can calculate the work done per person per hour and then divide it by the time taken to travel vertically by 190m. The work done is equal to the potential energy gained, which is given by the formula mgh, where m is the average mass per person (70 kg), g is the acceleration due to gravity (9.8 m/s^2), and h is the vertical height gained (190 m). Multiplying this by the number of people per hour gives us the total work done per hour. Dividing this by the time taken to travel the vertical height gives us the maximum power needed. The power is given by the formula P = W/t, where W is the work done and t is the time taken.

Using the given values, we have:

Work done per person per hour: (70 kg) x (9.8 m/s^2) x (190 m) = 128660 J

Total work done per hour: 128660 J x 49800 = 6.40 x 10^9 J

Time taken to travel vertically by 190m: 190 m / (9.8 m/s^2) = 19.39 s

Maximum power needed: (6.40 x 10^9 J) / (19.39 s) = 3.31 x 10^8 W

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A 3.8 kg object is lifted 12 meters. approximately how much work is performed during the lifting?

Answers

Work done is equivalent to potential energy.

W = mgh. m is mass in kg, g is acceleration due to gravity = 9.81 m/s², h is height = 12 m

= 3.8 * 9.81 * 12

= 447.336 Joules

W = mgh.

m is mass in kg,

g is acceleration due to gravity = 9.81 m/s²,

h is height = 12 m

= 3.8 * 9.81 * 12

= 447.336 Joules

What part of a standing sound wave does a musician seek in playing a musical note of a specific pitch?

Answers

The correct answer to the question above is that the magician is seeking the wavelength of the standing wave. The part of a standing sound wave, which is its wavelength, the magician is seeking when playing a musical note of a specific pitch.

That is false. I just took the test and it is not the wavelength. The correct answer is antinode NOT wavelength.

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