A transformer has 500 volts applied to the primary side and 10,000 volts are measured
on the secondary side. If 10mA is applied to the primary side. What is the anticipated
current on the secondary side? Is this a step-up or step down transformer?

Answer:

Refraction refers to any bending of waves due to a change in speed. In the case of light being refracted by a prism, dispersion means that the higher the frequency light bends more. In short, Refraction is the bending of light and Dispersion is the frequency dependece of this behaviour.

Answer: We can see the moon at night because the earth spins in a circle wall it is going around the sun so when the sun go down and the moon comes up the suns light will go over the top of earth and hite the moon the all the light that is hite the moon will bounce off it and the moon it a light color and light shins off lighter colored thing and it will have a little proportion of that light will come and hite earth make the moon very easy to see at night and the most light hits the moon when if it a full moon and is the most brite.

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Based on the acceleration-time graph, the segments of the motion in which the object experience a net force are both 1 and 3.

Newton's Second Law of Motion states that the acceleration of an object is inversely proportional to its mass and directly proportional to the net force acting on the physical object.

Mathematically, the net force acting on the car is given by Newton's Second Law of Motion:

[tex]F=ma =\frac{m(v\;-\;u)}{t}[/tex]

Where:

Note: Mass represents the conversion factor between net force and acceleration on an acceleration-time graph.

Based on the acceleration-time graph, the segments of the motion in which there is a net force acting on the object are both 1 and 3 while it experienced constant acceleration at segment 2 and 4.

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Answer:

2.00×[tex]10^{8}[/tex]

Explanation:

3×[tex]10^{8}[/tex]/1.5

=2.00×[tex]10^{8}[/tex]

Given parameters:

Frequency of the wave  = 1520kHz   = 1520 x 10³Hz

Unknown:

Wavelength of the radio photon = ?

Energy of the wave = ?

Solution:

The wavelength of any electromagnetic wave can found using the expression below;

          C = f x ∧

Where C is the velocity of light  = 3 x 10⁸m/s

            f is the frequency of the wave

            ∧ is the wavelength

Since the unknown is ∧, input the known parameters and solve for it;

       3 x 10⁸  = 1520 x 10³  x ∧

    Wavelength  = [tex]\frac{3 x 10^{8} }{1520 x 10^{3} }[/tex]  

   Wavelength  = [tex]\frac{3 x 10^{8} }{1.52 x 10^{6} }[/tex]

  Wavelength  = 1.97 x 10²m

ii. Energy of the wave;

        Energy of a wave  = hf

where h is the planck's constant = 6.63 x 10⁻³⁴ J Hz⁻¹

           f is the frequency of the wave

Input the parameters and solve;

            Energy of the wave = 6.63 x 10⁻³⁴ x 1.52 x 10⁶

                                               = 10.1 x 10⁻²⁸J

The energy of this wave is 10.1 x 10⁻²⁸J

Wavelength of the wave  = 1.97 x 10²m

Energy of the wave = 10.1 x 10⁻²⁸J

Given:

Frequency of the wave  = 1520kHz   = 1520 x 10³Hz

To find:

Wavelength of the radio photon = ?

Energy of the wave = ?

The wavelength of any electromagnetic wave can found using the expression below:

c = f * ∧

Where,

c is the velocity of light  = 3 x 10⁸m/s

f is the frequency of the wave

∧ is the wavelength

On substituting the values:

3 x 10⁸  = 1520 x 10³  x ∧

Wavelength  = 1.97 x 10²m

Energy of a wave  = h*f

where,

h is the Planck's constant = 6.63 x 10⁻³⁴ J Hz⁻¹

f is the frequency of the wave

On substituting the values:

Energy of the wave = 6.63 x 10⁻³⁴ x 1.52 x 10⁶

Energy of the wave = 10.1 x 10⁻²⁸J

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Answer:

energy which a body possesses by virtue of being in motion.

Explanation:

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Answer: 13.7 m/s

Explanation:

[tex]$$Mass of $T r u c k$$ \ \left(m_{T}\right)=3520\mathrm{kg}[/tex]

[tex]V_{T_{y}}=18.5 \mathrm{~m} / \mathrm{s} \\&V_{\text {Tix }}=0 \mathrm{~m} / \mathrm{s}[/tex]

[tex]\mathrm{Mass \ of \ car \ (m_c) = 1480 \ kg}[/tex]

[tex]V_{c i x}=\text { ? ; } V_{c i y}=0 \mathrm{~m} / \mathrm{s}[/tex]

[tex]Final \ velocity $\left(V_{f}\right)=13.6 \mathrm{~m} / \mathrm{s} \ \ \theta=72.6$[/tex]

[tex]v_{f x}=v_{f} \cos \theta=(13.6) \cos 72.6=4.067 \mathrm{~m} / \mathrm{s}[/tex]

[tex]\mathrm {Using \ the \ conservation \ of \ momentum \ along\ the \ $x$-axis}[/tex]

[tex]\begin{aligned}m_{T} v_{T i x}+m_{c} v_{c_{i x}} &=\left(m_{T}+m_{c}\right) v_{f x} \\0+(1480) V_{c_{i x}} &=(3520+1480)(4.067) \\(1480) v_{c i x} &=20335 \\V_{c i x} &=13.7 \mathrm{~m} / \mathrm{sec}\end{aligned}[/tex]

Answer:

13.7 m/s

Explanation:

20cm spanner is suitable to open this nut , Because we feel easy to apply force at the end of spanner to rusted nut. It means that as the perpendicular distance between force and axis of rotation increase the magnitude of moment also increase.

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Let R be the radius of cylinder

[tex]m_a + m_b = 4 + 3 = 7kg[/tex]

The angular velocity is 500 RPMs

[tex]\omega ^2 = \frac{500 * 2\pi}{60} rad/s\\N = (M_a + M_b)\omega ^2 R[/tex]

The normal force

[tex]f = \mu N = (M_a + M_b) g\\\mu (M_a + M_b) \omega ^2 R = M_a + M_b\\R = \frac{1}{\mu \omega ^2 R}\\\mu_s = 0.5\\R = \frac{1}{0.5 * (\frac{500 * 2\pi}{60})^2 }\\R = 0.0073m\\R = 7.3mm[/tex]

Since the radius is very little for two block to execute circular motion so system will slide down.

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Answer:

i think it is 89

Answer: the answer is in the picture

Explanation:

Answer:

C

Explanation:

i did the test and got 100 :)

For a radio signal that travels from Earth and through space at a speed of 3.0 × 108 m/s, The distance into space the signal traveled during the first 33.3 minutes  is mathematically given as

d=647352m

Generally, the equation for the distance is mathematically given as

d=v*t

Where

t=33.3min

t=33.3*60

t=1998sec

Therefore

d=3.0 × 108 m/s *1998sec

d=647352m

In conclusion, distance is

d=647352m

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Answer:

His trip took 5.78 seconds

Explanation:

23.7m divided by 4.1m/s = 5.78048780488

Answer: The Answer is A 1.2 x 10−2 m/s2

The average acceleration of the delivery drone as it slowed down was  -0.012 m/s².

The average acceleration is defined as the average rate of change of velocity with respect to time. Mathematically -

a = Δv/Δt

Given is a delivery drone that uniformly slows down from 45 m/s to 23 m/s in a straight line over a 30-minute duration.

We can write -

[u] = 45 m/s

[v] = 23 m/s

Δt = 30 min = 30 x 60 = 1800 sec

We can write the average acceleration as -

a = Δv/Δt

a = (23 - 45)/1800

a = - 0.012 m/s²

Therefore, the average acceleration of the delivery drone as it slowed down was  -0.012 m/s².

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a. The push is 150 N and acts to the right while the frictional force is 150 N and acts to the left.

b. The weight is 490 N and acts downwards while the normal force is 490 N and acts upwards.

c. The package moves 1.8 m

d. The package's acceleration is 0 m/s²

The push is 150 N and acts to the right while the frictional force is 150 N and acts to the left.a

Since the direction of push and the floor is horizontal, and first horizontal force acting on the package is the push and its magnitude is 150 N.

Also, a frictional force also acts to oppose the motion of the package.

Since the packge moves at a constant velocity of 0.6 m/s, its acceleration is zero and thus the net force on the package is zero.

Let

So, F - f = 0

F = f

= 150 N

So, the frictional force is 150 N and opposite to the push.

So, the push is 150 N and acts to the right while the frictional force is 150 N and acts to the left.

The weight is 490 N and acts downwards while the normal force is 490 N and acts upwards.

Since the floor is horizontal, the vertical forces that act on the package are its weight and the normal force due to the ground.

The direction of the weight is downwards while the direction of the normal force is upwards.

Since the floor is horizontal and the package does not move in the vertical direction, the net vertical force is zero.

So, the net force N - W = 0

N = W

= mg

= 50 kg × 9.8 m/s²

= 490 N

So, the weight is 490 N and acts downwards while the normal force is 490 N and acts upwards.

The package moves 1.8 m

Since distance, d = vt where

So, d = vt

= 0.6 m/s × 3 s

= 1.8 m

So, the package moves 1.8 m

The package's acceleration is 0 m/s²

Since the net force on the package is zero, its acceleration is also zero. Since force, F = ma where

Since F = 0,

ma = 0

a = 0

So, the package's acceleration is 0 m/s²

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Answer: either 3.20s or 1.18s

Explanation:

For a  pulley in the form of a uniform disk with a mass of 63 kg and a radius of 20 cm, the magnitude of the tension T is mathematically given as

T1=292.4N

For 20kg

T1=196+20a

For

33kg

T2=323.4-33a

Generally, the simultaneous equation is mathematically given as

T2-T1=(323.4-33a)-(196+20a)

Hence

127.4-53.a

a=1.67m/s^2

T1=196+20(1.67)

T1=292.4N

In conclusion, the magnitude of the tension T

T1=292.4N

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Answer:

Andre is really disappointed that he didn't make the basketball team as a player this year, but he decides to accept the coach's offer to assist the team in other ways in doing so, he is exercising the self-care strategy of?

Answer

A

Andre is really disappointed that he didn't make the basketball team as a player this year, but he decides to accept the coach's offer, so he is exercising the self-care strategy of being flexible that is in Option A.

Being flexible is an important self-care strategy, as it allows individuals to adjust to and cope with change such as in Andre's case, he had his heart set on being a basketball player, but when that didn't work out, he chose to be flexible and open to new possibilities, worked hard, and also Being flexible can help reduce stress and improve well-being because it allows someone to approach situations with a more positive and open mindset.

Hence, Andre is exercising the self-care strategy of being flexible, which is in Option A, as he didn't make the basketball team as a player this year.

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Answer:

22.5 J

Explanation:

GPE=wxh- 45kg divided by 2m= 22.5

Answer:

the moon showing up at same time as what

Explanation:

???

Answer:

the kinetic energy force made the not to stay in a position if the person is not careful

temperature would decrease because you aren’t close to other bodies with similar temperatures, you are now surrounded by air that is cooler than you. the molecules move from hot to cold always.

Temperature is a unit used to describe hotness or coldness. It can be stated in terms of any number of arbitrary scales and shows the direction in which heat energy will naturally flow, i.e., from a hotter body to a colder body (one at a lower temperature).

Temperature is not the same as the energy of a thermodynamic system; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a much higher temperature.

As opposed to extensive characteristics, like mass or volume, temperature is referred to as an intense property—one that is independent of the quantity of matter being considered—along with pressure, density, and other comparable properties.

Therefore, temperature would decrease because you aren’t close to other bodies with similar temperatures, you are now surrounded by air that is cooler than you. the molecules move from hot to cold always.

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Answer:

Explanation:

The circuit is incomplete since it is a series circuit

The closer together they are the harder it is to hold on to because the magnetic field is stronger as it gets closer.

Answer:

D. The electromagnet's magnetic field is stronger close to it than far from it.​

Answer: 1. B, 2. A, 3. C, 4. D

Answer:

1 = B

2 = A

3 = C

4 = D

I hope this helps

Answer:

Adolescent Development

Adolescence is the period of transition between childhood and adulthood. Children who are entering adolescence are going through many changes. This article offers advice for adolescents and parents to negotiate these changes.

Answer:

How do you support adolescent development?

Explanation:

Parents are a key support for teens during this time of growth and reflection. Be aware of the stages of emotional development, and provide clear guidance at each phase. Acknowledge when to give space and independence to teens. Help guide teens to feel good about themselves.

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The work is done against the skier, we call it negative work, and the magnitude of the work done on the skier by the rope is 7500 J.

The work done on the skier by the rope is in opposte direction of the water skier which caused the water skier to fall after some given period of time. Since the work is done against the skier, we call it negative work.

The magnitude of the work done on the skier by the rope is calculated as follows;

W = Fd

where;

F is the applied force on the rope

d is the distance moved by the skier

W = 100 x 75

W = 7500 J

Thus, the magnitude of the work done on the skier by the rope is 7500 J.

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