You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 33 kg. The rope is at an angle of 35 degrees to the ground. As you pull with a force of 27 N, the sled travels a distance of 48 m. How much work do you do?

Hello. You did not present the combinations the question refers to, which makes it impossible for this question to be answered accurately. However, I will try to help you in the best possible way.

To present the total force you must use the following formula: Mass x Acceleration.

To calculate the total mass, you must use the formula: Force / acceleration.

To calculate the acceleration you must use the formula: Force / mass.

The maximum acceleration is 3.56 × 10¹⁶ m/s², the minimum acceleration is 0, and the angle between the electron velocity and the magnetic field is 14.47°.

Given information,

Velocity = 2.60×10⁶ m/s

Magnetic field = 7.80×10⁻² T

Magnetic force on moving charge =  qvB sinθ

For max acceleration, θ=  90°, and F is also equal to ma.

Thus,

ma = qvB

9.11 × 10⁻³¹ × a = 1.6×10⁻¹⁹ × 2.60×10⁶  × 7.80 × 10⁻²

a = 356.18  × 10⁻¹⁵/9.11 × 10⁻³¹

a =  3.56 × 10¹⁶ m/s²

For minimum acceleration, θ= 0°

Therefore, a = 0

Sin θ=  1/4

θ=  sin^-1(0.25)

θ=  14.47°

Therefore, the maximum acceleration is 3.56 × 10¹⁶ m/s², the minimum acceleration is 0, and the angle between the electron velocity and the magnetic field is 14.47°.

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Short focal length lens makes the background and foreground appear closer together.

Short focal length lenses are sometimes known as wide-angle or wide-field lenses, which accurately defines their key characteristic—they view a larger angle of a scene than is typical.

When your eyes are fixed in one place and you look at a scene, a lens with a typical focal length captures what you see.

The angle of view is narrower, and the magnification is higher the longer the focal length.

A shorter focal length results in a wider angle of view and a lower magnification.

Because they provide a broad field of view, short focal length lenses are frequently utilized in architectural, documentary, and landscape photography. These telephoto lenses enable

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The S.I. unit of E is NC^-1 and that of B is NA^-1 m^-1, then unit of E/B is A m/C (ampere meter per coulomb). This unit represents the ratio between the electric field and the magnetic field, indicating the strength and direction of the electromagnetic field.

The SI unit of electric field (E) is NC^(-1) (newton per coulomb) and the SI unit of magnetic field (B) is NA^(-1) m^(-1) (tesla). To determine the unit of E/B, we need to divide the unit of E by the unit of B.

Dividing the unit of E (NC^(-1)) by the unit of B (NA^(-1) m^(-1)), we can simplify the expression:

E/B = (NC^(-1))/(NA^(-1) m^(-1))

To simplify this expression, we can cancel out the common units in the numerator and denominator:

E/B = (N/C)/(N/(A m))

Now, let's simplify further by dividing the numerator and denominator:

E/B = (N/C) * (A m/N)

Canceling out the common units:

E/B = (A m)/(C)

Therefore, the unit of E/B is A m/C (ampere meter per coulomb).

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Explanation:

it will not change it's motion because it's force is less than the force applied

Answer:

2 rotations / second = 2 * 360 deg / sec = 720 deg /sec

Note - 2 rot = 2 π * 2 = 4 π radians       since 1 rotation = 2 π radians

The refractive index of the new medium is approximately 1.59.

Snell's law relates the angles of incidence and refraction of light passing through a boundary between two media with different refractive indices (n). The formula is:

n₁ sin θ₁ = n₂ sin θ₂

where n₁ is the refractive index of the first medium, θ₁ is the angle of incidence, n₂ is the refractive index of the second medium, and θ₂ is the angle of refraction.

In this problem, we know that the angle of incidence is 30.0 degrees and the angle of refraction is 18.0 degrees. We also know that the refractive index of air (n₁) is 1.00. Therefore, we can use Snell's law to solve for the refractive index of the new medium (n₂):

n₁ sin θ₁ = n₂ sin θ₂

1.00 sin 30.0° = n₂ sin 18.0°

n₂ = (1.00 sin 30.0°) / sin 18.0°

n₂ ≈ 1.59

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Mineralogically, barite is a sulfate, bornite is a sulfide, cuprite is an oxide, magnesite is a carbonate.

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Among the mineral groups, barite is a sulfide mineral, bornite is a sulfide mineral, cuprite is an oxide mineral, and magnesite is a carbonate mineral.

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Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

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Answer: 0.3m

Explanation:

Given the following :

Speed of radio wave(V) = 3 × 10^8 m/s

If 1M = 10^6

Frequency(F) = 90MHz = 90 × 10^6

Wavelength (λ) =?

Speed of wave (V) = frequency(F) × wavelength(λ)

V = fλ

(3 × 10^8) = (90 × 10^6) × λ

λ = (90 × 10^6) / (3 × 10^8)

λ = 30 × 10^(6 - 8)

λ = 30 × 10^-2

λ = 0.3m

Answer:

True

Explanation:

Answer:

True

Explanation:

The four spheres of atmosphere are

Water begins its journey from hydrosphere then goes through atmosphere, biosphere and geosphere respectively

The average speed of the waves which strikes the shore is 0.333m/s.

The average speed of any moving object is the ratio of the total distance covered and the total time taken to cover that distance.

If ocean waves strike the shore every 3.0 s and the horizontal distance between adjacent crests and troughs is 1.0 m,

The speed is related to wavelength and frequency as

v = fλ

Wavelength is the distance between the adjacent crest or trough and the frequency is the reciprocal of Time period.

So, speed will be

v =λ/T

Substitute the values, we have

v = 1/3

v = 0.333 m/s

Thus, the speed of the wave is 0.333 m/s

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Answer:

254 m/s

Explanation:

(Vf-Vi) = at

(Vf-14)= 60 (4)

Vf = 254 m/s

To ensure that the force experienced by the person remains within the safe threshold, the car should decelerate at a rate of approximately 24.26 m/s² or less.

In the event of a car driving off the road and colliding with a person, it is crucial to ensure that the person experiences a deceleration that is within a safe range to prevent severe injuries. Given that the average person has a mass of 68 kg and is traveling on a highway at a velocity of 27 m/s, with a maximum safe force threshold of 1650 N, we can calculate the required deceleration using Newton's second law of motion.

Newton's second law states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). Rearranging the equation to solve for acceleration, we have a = F/m.

Substituting the known values into the equation, we have a = 1650 N / 68 kg ≈ 24.26 m/s².

This means that to ensure the person doesn't exceed the maximum safe force, the deceleration experienced by the person should be around 24.26 m/s² or less. By slowing down the car more gradually over a longer duration of time, the impact force on the person can be reduced, resulting in a lower deceleration.

To achieve this, engineers can implement various safety mechanisms in the car, such as crumple zones, seat belts, airbags, and advanced braking systems. These features are designed to absorb and distribute the impact force over a longer period, effectively reducing the deceleration experienced by the person.

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Answer:

 freezing melting sublimating  x y

 x and

Explanation:

To drop a table of states of matter the best headings must be

table name: matter state

    freezing melting sublimation x y

This order goes from the solid state to the gaseous state, which is obtained by introducing heat into the system

Answer: D on edge

X: Heat Is Absorbed

Y: Heat Is Released

Explanation:

sublimation and melting are both absorbing heat(aka getting warmer)as they change state while freezing and deposition are releasing heat(aka getting colder)as they change state

Explanation:

You walk 53m to the north, then you turn 60° to your right and walk another 45m. Determine the direction of your displacement vector. Express your answer as an angle relative to east.

Cataract is a condition in which there is a progressive thickening of the lens causing vision to become cloudy, opaque, and distorted.

The majority of cataracts occur when the tissue that makes up the eye's lens changes due to age or trauma.

The risk of cataracts may be increased by some hereditary genetic abnormalities that can result in other health issues. Other eye diseases, previous eye surgery, or other disorders like diabetes might also lead to cataracts. Cataracts can also form as a result of prolonged steroid drug usage.

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When the package hits the ground, the plane will be 4,687.2 m away.

The time taken for the package to fall from the given height is known as the time of motion of the package and the magnitude is calculated by applying the following kinematic equation.

h = vt + ¹/₂gt²

where;

h = 0 +  ¹/₂gt²

t = √(2h/g)

t = √ [ (2 x 1390) / ( 9.8) ]

t = 16.8 seconds

The horizontal displacement of the plane at this time;

X = ut

where;

X = 279 x 16.8

X = 4,687.2 m

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the angle of elevation from Phillip to the space shuttle is approximately 34.42 degrees.

We can use trigonometry to solve this problem. Let's draw a diagram to better understand the situation:

P (Phillip)

|\

| \

| \

| \ S (Space shuttle)

| \

| \

| \

| \

| \

| \

| \

------------

D (distance = 9 miles)

We want to find the angle of elevation θ, which is the angle between Phillip's line of sight and the horizontal line passing through the space shuttle. We know that the opposite side is the height of the space shuttle, which is 5.9 miles, and the adjacent side is the distance between Phillip and the space shuttle, which is 9 miles.

Therefore, we can use the tangent function:

tan(θ) = opposite/adjacent

tan(θ) = 5.9/9

θ = tan⁻¹(5.9/9)

θ ≈ 34.42 degrees

So the angle of elevation from Phillip to the space shuttle is approximately 34.42 degrees.

the angle of elevation is the angle formed between the horizontal and the line of sight from the observer (in this case, Phillip) to an object (in this case, the space shuttle). It is important to note that the observer, the object, and the point of reference (in this case, the horizontal) must form a right triangle.

In this problem, we used the tangent function to find the angle of elevation. The tangent function relates the opposite and adjacent sides of a right triangle to the angle opposite the opposite side.

In this case, we used the tangent function because we were given the opposite side (the height of the space shuttle) and the adjacent side (the distance between Phillip and the space shuttle).

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The banking angle of a velodrome track is 8.980, which prevents a bicycle riding at 50.0 km/h from tending to slide to either side while on a path with an 81.0 m radius of curvature.

The 250-meter indoor cycling track that makes up the velodrome is entirely enclosed in wood. the velodrome track's radius of curvature, which touches a curve at a specific location and has the same tangent and curvature there.

banking angle is the inverse tan of the square of the body's speed to the product of its acceleration owing to gravity is the angle of banking angle.

The angle will be

theta = tan^{-1}\frac{v^2}{rg}

= tan^{-1}\frac{11.63^2}{81\times 9.8}

= 8.98^0

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The force for the car and the truck during the accident as a time - dependent 6.6 m/s².

In physics, a collision, which is also known as an impact, is the abrupt, violent coming together in close proximity of two substances, such as two pool cues, a golf club and just a ball, a hammering and just a nail, two wagons when linked, or a dropping object or a floor.

The term "colloid" refers to a homogenous, non-crystalline substance made up of huge molecules or ultra-small particles of one component scattered throughout another substance. Emulsions, gels, and sols are examples of colloids. Whole blood, plasma, & albumin are examples of natural colloids.

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Increasing the frequency of each photon that is directed at the cathode will increase the energy of each photon. This increased energy can help overcome the work function of the cathode, allowing more electrons to be emitted in the photoelectric effect.

Increasing the frequency of each photon that is directed at the cathode will:
1. Increase the energy of each photon: The energy of a photon is directly proportional to its frequency. This can be represented by the formula E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the photon.
2. Potentially increase the kinetic energy of the emitted electrons: When a high-frequency photon strikes the cathode, it can transfer more energy to the electrons, causing them to be ejected with a higher kinetic energy. This can be explained using the photoelectric effect equation: KE = hf - Φ, where KE is the kinetic energy of the emitted electron, Φ is the work function of the cathode material, and hf is the energy of the incident photon.

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Answer:

C. the production of new machines as a result of processes using science and knowledge.

Explanation:

Technology is the application of scientific research and knowledge .

Answer:

H = V t - 1/2 g t^2         V and g are in different directions

-8.2 = V * 6.2 - 1/2 * 10 * 6.2*2 = 6.2 V - 192.2

V = 184 / 6.2 = 29.7 m/s

Check: find time for ball to return to zero height

0 = 29.7 T - 5 T^2

T = 29.7 / 5 = 5.94 sec

The ball must have fallen 8.2 m in (6.2 - 5.94) sec = .26 sec

S = 29.7 * .26 + 5 * .26^2 = 8.1

Testable hypotheses are the theoretical problems that operational definitions have converted into.

Scientific observation is an empirical research designed to systematically address issues about the world. Through the use of operational definitions, theoretical questions are converted into. a provable theory. The measurement process for measuring external, observable behaviour is specified in Operational Definitions. The measurements that are obtained are utilised to define and quantify the construct. A measurement process (a collection of operations) is specified in an operational definition for the purpose of measuring an external, observable behaviour, and the definition and measurement of the hypothetical construct are then based on the results of the measurement procedure. No matter how solid your conceptual definition may be, you cannot measure anything without an operational definition.

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The magnitude of the impulse applied to stop the snowboarder is approximately 1872 N*s.

To calculate the magnitude of the impulse applied to stop the snowboarder, we can use the formula:

Impulse = Force * Time

Given that the braking force is 267 N and the braking time is 7.01 seconds, we can calculate the impulse as follows:

Impulse = 267 N * 7.01 s ≈ 1872 N*s

Therefore, the magnitude of the impulse applied to stop the snowboarder is approximately 1872 N*s.

So the correct option is 1872 N*s.

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The part of electromagnetic spectrum lying between the ultraviolet region and the gamma ray region is x-rays.

The smallest known wavelengths and greatest frequency are found in gamma rays. They are the most piercing waves because they have high energy and can travel great lengths through air. X-rays have shorter wavelengths than UV radiation, but longer wavelengths than gamma radiation, making them more energetic.

The electromagnetic energy known as ultraviolet has a frequency of 30 PHz to 750 THz and a wavelength of 10 nm to 400 nm. These particles have wavelengths that are both shorter than visible light and longer than X-rays.

Thus, the x-ray area of the electromagnetic spectrum is located between the ultraviolet and gamma ray regions.

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Answer:

Looks like A but I'm not sure.

Explanation:

dont take my word for it I might be wrong

Answer:

deforestación en el mundo es incontrolable

Answer:

117

Explanation:

the formula is P1V1 over T1 is equals to P2V2 over T2