derive equations and describe how the person’s applied torque changes to lift the weight as the shin pad moves closer to or farther from the knee.\

Answer:

the mother

Explanation:

the child is smaller and has less mass so it would be easier to push the baby rather than the mother. so you would put more force into pushing the mother

When a constant current flows in the circuit of coil A, an induced current is produced in coil B. This can be explained by Faraday's Law of Electromagnetic Induction. According to Faraday's law, an electric field is produced by a changing magnetic field, which causes an induced electromotive force (EMF). When the current in coil A is constant, the magnetic field produced by the current does not change.

However, when the current is turned off, the magnetic field decreases, causing an induced current to be produced in coil B. The induced current is in the opposite direction to the original current. In conclusion, when a constant current is flowing in the circuit of coil A, an induced current is produced in coil B. This phenomenon is a result of Faraday's Law of Electromagnetic Induction and occurs due to the interaction of magnetic fields in the two coils.

To know more about current visit:

https://brainly.com/question/15141911

#SPJ11

If a  book of mass 0.4 kg is pushed to the left across a table with a force of 2.4 N. Kinetic friction provides a force of magnitude 0.8 N, then the normal force acting on the book would be 3.92 Newtons.

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

As given in the problem If a  book of mass 0.4 kg is pushed to the left across a table with a force of 2.4 N. Kinetic friction provides a force of magnitude 0.8 N,

The normal force = m × g

                             =  0.4 × 9.8

                             = 3.92 Newtons

Thus, the normal force acting on the book would be 3.92 Newtons.

Learn more about friction here, refer to the link;

brainly.com/question/24186853

#SPJ1

Tango landed in a site of lower temperature while Foxtrot landed in a site of higher temperature.

Speed of sound increases with increase in temperature because air molecules acquires more kinetic energy which increases their rate of vibration.

From the information, the speed of sound picked by Foxtrot (258 m/s) is greater than the speed of sound picked by Tango (240 m/s).

We can conclude that, Tango landed in a site of lower temperature while Foxtrot landed in a site of higher temperature.

Learn more about temperature and speed of sound here:  https://brainly.com/question/14400858

#SPJ1

The distance is 0.0013.4 mm

For dark fringe is 4,0

light of wavelength 460 nm

slits spaced 0.3 mm.

\($y=\frac{D}{d}(2 n-1) \frac{\lambda}{2}$$\)

For First dark fringe put n=1

For third dark fringe put n=3

\($\begin{aligned}& y_1=\frac{D \lambda}{d 2} \\& y_3-y_1=\frac{5 D \lambda}{2 d}-\frac{D \lambda}{2 d}=\frac{5 D \lambda}{2 d} \\& \Delta y=\frac{2 D D \lambda}{2 d} \\& L_1 \mathrm{~mm}=\frac{2 \times D \times 460 \mathrm{~nm}}{0.3 \mathrm{~mm}} \\& D=\frac{4 \times 0.3}{2 \times 460} \mathrm{~mm}=0.001304 \mathrm{~mm}\end{aligned}$$\)

Therefore, the distance from the slits to the screen is 0.001304 mm.

For such more questions about wavelength

https://brainly.com/question/26952788

#SPJ4

Int this setup of YDSE distance from the slits to the screen is 1.739 m

As we all know from the young's double slit experiment the position of n(th) dark fringe width is given by

\(y=(n+\frac{1}{2} )\)λ\(\frac{D}{d}\)

here, y= position of minima on the screen

n= no. of minima

D= slit- screen separation

d= slit width

λ= wavelength of light used

Given,

λ= 460nm= 460×10⁻⁹ m

Δy= 4×10⁻³ m

d= 0.3mm= 0.3×10⁻³ m

According to question, y₃-y₁= Δy= 4×10⁻³ m

For first dark fringe n=0

For third dark fringe n=2

On putting all the values and solving we get

D= 1.739m

We can learn more about young's double slit experiment at

https://brainly.com/question/29885741#
#SPJ4

The whole blood collected from a donor should remain at option (a) a. 20°C to 24°C. temperature before the separation and preparation of platelet concentrates

Whole blood collected from a donor should be kept at a temperature of 20°C to 24°C before the separation and preparation of platelet concentrates. This temperature range is known as the "room temperature" range and is ideal for maintaining the viability and function of platelets.

If the temperature is too low (i.e., below 20°C), the platelets can become activated and lose their function, leading to reduced efficacy. If the temperature is too high (i.e., above 24°C), the risk of bacterial growth and contamination increases, which can compromise the safety of the platelet concentrate.

It's important to note that the temperature range may vary slightly depending on the specific facility and its protocols, but generally, the room temperature range is considered optimal for the preparation of platelet concentrates.

Learn more about temperature here

brainly.com/question/30430397

#SPJ4

gravitational force (weight) and buoyant

Answer:

4.27

Explanation:

Write each force in component form:

v ₁ : 50 N due east   →   (50 N) i

v ₂ : 80 N at N 45° E   →   (80 N) (cos(45°) i + sin(45°) j ) ≈ (56.5 N) (i + j )

The resultant force is the sum of these two vectors:

r = v ₁ + v ₂ ≈ (106.5 N) i + (56.5 N) j

Its magnitude is

|| r || = √[(106.5 N)² + (56.5 N)²] ≈ 121 N

and has direction θ such that

tan(θ) = (56.5 N) / (106.5 N)   →   θ ≈ 28.0°

i.e. a direction of about E 28.0° N. (Just to clear up any confusion, I mean 28.0° north of east, or 28.0° relative to the positive x-axis.)

F_net:-

Now

Apply Newton's second law

Answer:

Inertia

Explanation:

Part of Newton's Laws of Motion

Answer:

Explanation:

If Tim jogs a distance of 7.2 km to the west and then he turns south and jogs 1.4 km, the resultant displacement of Tim is calculated using the pythagoras theorem as shown;

R² = 7.2²+1.4²

R² = 51.84+1.96

R² = 53.8

R = √53.8

R = 7.33 km

Hence  the resultant of Tim's jog back to the beginning is 7.33km

To determine the volume of a sample of strontium with a given mass, we can use the formula:

Volume = Mass / Density

Given:

Density of strontium (d) = 2.60 g/cm^3

Mass of the sample = 47.2 pounds

Before we proceed, let's convert the mass from pounds to grams, as the density is given in grams per cubic centimeter (g/cm^3).

1 pound is approximately equal to 453.592 grams.

Mass of the sample in grams = 47.2 pounds * 453.592 grams/pound

Now, we can calculate the volume using the formula:

Volume = Mass / Density

Volume = (47.2 * 453.592) / 2.60

By performing the calculations, we can determine the volume of the strontium sample in cubic centimeters.

You can learn more about Strontium  at

brainly.com/question/1581557

#SPJ11

The ball is seen to be speeding up as the distance increases with time.

We know that speed is the ratio of the distance to the time that is taken by the object. We know that when an object is speeding up, the distance of the object is going to increase linearly with the time taken.

If we look at the graph that has been shown in the image that is attached to this answer, we would notice that the distance that is covered is increasing with time.

The speed can then we obtained from;

Speed = \(y_{2} - y_{1}/x_{2} - x_{1}\)

= 80 - 0/6.5 - 0

= 12.3 m/s

Learn more about speed:https://brainly.com/question/28224010

#SPJ1

:(a) The work done during the isothermal transition is zero, and the heat produced is Q = T(S2 - S1). (b) The work done during the constant-entropy transition is W = n(coT2 - ThT1), and the heat produced is Q = nTh(T2 - T1).

(a) During an isothermal transition of an ideal gas from temperature T and entropy S1 to temperature T and entropy S2, the work done is zero. This is because the volume change during the transition occurs at a constant temperature, resulting in no net work.

The heat produced during this transition can be calculated using the formula Q = T(S2 - S1), where T is the temperature and S2 and S1 are the entropies at the respective states.

(b) In a constant-entropy transition of an ideal gas from temperature T1 and entropy S to temperature T2 and entropy S, the work done can be determined using the formula W = n(coT2 - ThT1), where n is the number of moles of the gas, co is the specific heat, and Th is the absolute temperature. The heat produced during this transition can be calculated using the formula Q = nTh(T2 - T1).

the calculations involved in determining the work done and heat produced during different thermodynamic transitions of an ideal gas.

Learn more about isothermal

brainly.com/question/17192213

#SPJ11

Magnification is the ratio of the size of the image to the size of the object.

A positive magnification indicates that the image is upright, while a negative magnification indicates that the image is inverted. When the value of the magnification is less than one, it means that the image is smaller than the object, while a magnification greater than one indicates that the image is larger than the object.
The orientation of the image formed depends on the position of the object relative to the lens. When the object is placed between the lens and the focal point, the image formed is upright and magnified, as the distance between the object and the lens is greater than the distance between the lens and the focal point. When the object is placed beyond the focal point, the image formed is inverted and reduced in size.
In summary, the sign and value of the magnification provide information about the orientation and size of the image formed. A positive magnification indicates an upright image, while a negative magnification indicates an inverted image. The magnitude of the magnification tells us whether the image is larger or smaller than the object.

To know more about Magnification visit:
https://brainly.com/question/21370207
#SPJ11

The current of the circuit would be 3.22 x 10⁻⁴⁴ A in the laboratory.

Current refers to the flow of electric charge in a circuit. It is measured in units of amperes (A) and is typically represented by the symbol "I" in equations. The flow of current is caused by the movement of electrons in a conductor. The direction of current flow is conventionally taken to be the direction in which positive charge would move. Electric current can be either direct current (DC), in which the electric charge flows in one direction, or alternating current (AC), in which the electric charge changes direction periodically.

To find the current of the circuit, we need to use the formula for current:

I = Q / t

Where I is the current, Q is the charge, and t is the time.

Given that 1.1 x 10⁻⁴⁰ C of charge is measured to pass through the resistor on 3412 s, we can plug in these values and solve for I:

I = (1.1 x 10⁻⁴⁰ C) / (3412 s)

I = 3.22 x 10⁻⁴⁴  A

So the current of the circuit is 3.22 x 10⁻⁴⁴  A.

To know more about direct current, visit:

https://brainly.com/question/2625601

#SPJ1

Answer:

jhon Dalton described it

Explanation:

hope it works out for you

if please mark brainiest

John Dalton described atoms as small spheres that could not be divided into anything smaller.

John Dalton is the scientist who described atoms as small spheres that could not be divided into anything smaller. He proposed his atomic theory in 1803, which included the postulate that all matter is composed of tiny, indivisible particles called atoms. D

Dalton's theory also stated that atoms of different elements are unique in their mass and chemical properties and combine in simple whole-number ratios to form compounds. Dalton's model of the atom was a solid, indivisible sphere that was the smallest possible unit of an element.

While this model has been refined and updated with new discoveries, Dalton's contributions laid the foundation for the modern understanding of atomic structure and chemical reactions.

Learn more about John Dalton, here:

https://brainly.com/question/1500237

#SPJ7

Answer:

The answers to the questions are

1. Sound energy

2. Conductor

3. Flow

4. Thermal energy (g underlined)

5. Electric current

6. Insulator

7. Light energy

8. Electric circuit

The underlined letters are, e, n, g, r, y, e which can be rearranged to spell energy

Explanation:

1. Sound energy is the wave form of mechanical energy that is transferred by the vibration of the of the medium through which it propagates

2. An electrical conductor is used to conduct electricity from one point to another

3. An object or material flows when it has a smooth motion towards a given direction, such as a river

4. Thermal energy is the form of energy that is given off by a body as sensible heat that can be measured as a temperature by a thermometer

5. Electric current is the electricity in a circuit

6. An insulator is a material that limits the flow of electricity or heat

7. Light energy is the form electromagnetic energy which the eye can sense

8. An electric current flows an electric circuit which consist of a source of electricity and an path through which the electric current can easily flow.

Answer:

it depends on how hard and fast he hit the ball a baseballs terminal velocity, a baseball can reach a velocity of around 95mph

Answer:

The angle of the Sun's rays:

At about June 21 the sun is directly overhead at about 23 deg north of the equator

On about Dec 21 the sun is directly overhead at about 23 deg south of the equator

It is this tilt 23 deg to the ecliptic (path of earth about sun) that causes the major temperature changes on earth

One consequence of Newton's third law of motion is that all actions have equal and opposite reactions. (C)

In fact, that's pretty much what the law itself says in so many words.

Answer:

Its C All actions have equal and opposite reactions

Explanation:

Ive done this before

Without the frequency of the sound wave, the wavelength cannot be determined using the given information.

To calculate the wavelength of a sound wave, we need to know both the speed of sound and the frequency of the wave. The speed of sound in air is approximately 341 m/s, which is provided in the question. However, the frequency of the sound wave is missing. The wavelength of a sound wave is the distance between two consecutive points of the wave that are in phase, such as two crests or two troughs. It is inversely proportional to the frequency of the wave. As the frequency increases, the wavelength decreases, and vice versa. In order to calculate the wavelength, we need the frequency of the sound wave. With the frequency, we can use the formula λ = v/f, where λ is the wavelength, v is the speed of sound, and f is the frequency of the wave. Without the frequency, we cannot determine the wavelength accurately.

To learn more about frequency, Click here:

https://brainly.com/question/10732947

#SPJ11

The speed of the wave traveling on the 4 m stretched Slinky is approximately 3.33 m/s.

To find the speed of the wave traveling on the 4 m stretched Slinky,

Speed = Distance / Time

First, let's determine the distance the wave travels. Since it goes the length of the Slinky and back again, the total distance is 4 m (length) * 2 (going and returning) = 8 m.

Next, we're given the time it takes for the wave to travel this distance, which is 2.4 s.

Now, we can use the formula:

Speed = 8 m / 2.4 s

Speed ≈ 3.33 m/s

So, the speed of the wave traveling on the 4 m stretched Slinky is approximately 3.33 m/s.

Learn more about speed of the wave

brainly.com/question/32040742

#SPJ11

The three functions of an operating system include getting software and hardware to work together. Option A.

One of the main functions of an operating system is to get software and hardware to work together:

The operating system acts as an intermediary between software applications and computer hardware, providing a layer of abstraction that allows programs to interact with the hardware resources without needing to understand the underlying complexities.

Other functions include:

More on operating systems can be found here: https://brainly.com/question/6689423

#SPJ1

The Kepler mission was able to detect planets smaller than Mars, but it was limited in its ability to detect them due to several factors.

What is Planet?

A planet is a celestial body that orbits around a star, is spherical in shape due to its own gravity, and has cleared its orbit of other debris. In our solar system, there are eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

One major factor was the sensitivity of its instruments. The Kepler telescope used a technique called the transit method to detect planets, which involves measuring the slight dimming of a star's light as a planet passes in front of it. This method is most effective for detecting large planets that orbit close to their stars, because they cause a larger and more frequent dimming of the star's light. Smaller planets, particularly those in larger orbits, cause much smaller and less frequent dimming, which can be more difficult to detect.

Learn more about Planet from given link

https://brainly.com/question/1286910

#SPJ1

Velocity refers to the change in the position of the object with time.

The term velocity refers to the change in the position of the object with time. In this case, we have the position time graph that we could use to obtain the velocity of the body at any interval. The velocity is the slope of the position time graph.

4) velocity of the toy car from 0-3 seconds;

v = Δx/Δ t = 3 - 0/ 1.5 - 0 = 2 m/s

5) velocity of the toy car from 5-8 seconds

v = Δx/Δ t = 6 - 3/8 - 5 = 3/3 = 1 m/s

6)

v = Δx/Δ t = 0 m/s

Learn more about velocity:https://brainly.com/question/18084516

#SPJ1

The angular momentum of a system may remain the same unless The sum of the external torques is not zero. The angular momentum of a system may remain the same unless there is an external torque acting on the system.

This principle is known as the conservation of angular momentum, which states that the total angular momentum of a system remains constant in the absence of an external torque.

Angular momentum is a vector quantity that depends on the object's mass, velocity, and distance from the axis of rotation. In many physical systems, the conservation of angular momentum can be used to analyze the motion of rotating objects, such as planets, stars, and galaxies, and explain various phenomena, such as the precession of a spinning top or the formation of spiral arms in galaxies.

Learn more about angular momentum

https://brainly.com/question/29897173

#SPJ4