Anya has 115 mangoes lauren has five times the the number of mangoes Anya has they put them together and sold them in the market at $450 to $15 the sold all the mangoes how much money was collected at the end of the sale

The time it takes for the water along the shore to go from high to low and back again is six hours and 12.5 minutes between high tides, which happen every twelve hours and twenty-five minutes.

How long does it take for the tide to change from high to low?

six days, twelve and five minutes

Coastal locations see two high and two low tides every 24 hours and 50 minutes because the Earth spins through two tidal "bulges" every lunar day. There are 12 hours and 25 minutes between high tides. The sea level at the shore can change from high to low or from low to high in six hours and 12.5 minutes.

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The angle of refraction for the light ray with the wavelength of 589nm traveling through air strikes a crown glass at 30.0° incidence is 19.2°.

Refraction is the quantity used to measure the amount of refraction taking place at any boundary when light passes between the two mediums.

Refractive index can be calculated using Snell's law, the formula for calculating angle of refraction is as follows:

n₁/n₂ = sinФ₁/sinФ₂

n₁. sin(i) = n₂. sin(r)

where, n₁ = refractive index of medium 1

n₂ = refractive index of medium 2

i = angle of incidence in air

r = angle of refraction in glass

Therefore, by putting the values in this formula we can get the angle of refraction.

(1) × sin(30°)=(1.52) × sin(r)

sin(r)= 1/2 × 1.52

sin(r) = 1/ 3.04

r = sin⁻¹(0.328)

r = 19.2°

Therefore, Angle of refraction = 19.2°

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Your question is incomplete, most probably the complete question is:

A light ray of wavelength 589 nm (produced by a sodium lamp) traveling through air strikes a smooth, flat slab of crown glass at an angle of 30.0 to the normal. If the index of refraction of the crown glass is 1.52 and the index of refraction of air is 1. Find the angle of refraction.

If the first runner wants to stay side-by-side with the second runner, The angular velocity needs to be the same as they would then cover equal angular distance for a period of time.

An equal angular distance means that it would always be side to side.In order to do this, the first runner needs to run at a faster speed than the second runner. This is because the second runner is running in a larger circle than the first runner, so she covers more ground in the same amount of time. The first runner needs to make up for this by running at a faster speed.

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A common occurrence is the collision of a moving object with another object, after which both objects stick together. Because there is no bounce, such a collision is referred to as inelastic.

Inelastic collisions occur when kinetic energy is lost. An elastic collision, on the other hand, is one in which the kinetic energy after is equal to the kinetic energy before. Inelastic collisions occur when there is some "bounce" but the final kinetic energy is less than the initial kinetic energy. A collision with no bounce is sometimes referred to as completely inelastic. Collisions that are completely inelastic result in the objects sticking together and lose the most kinetic energy.

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The Potential energy is 2450 J.

Potential energy = mgh

m = mass of an object

g = acceleration due to gravity

h =  height of an object where it is placed

Put these values in formula, mgh

Potential energy = mgh

Potential energy = 50×9.8×5

Potential energy = 2450 J

Potential energy is stored energy in an object. Potential energy is the product of mass of an object, acceleration due to gravity and height of an object where it is placed.

The S.I. unit of potential energy is joule and is represented by J.

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5.45 second  it will take for the grinding wheel to stop an electric motor rotating a workshop grinding wheel at a rate of 103 rev/min is switched off with a constant deceleration of 1.96 rad/s 2

ω1 = 2π(103/60) = 10.7 rad/s

ω2 = 0

α = -1.96 rad/s^2

time t = (ω2 - ω1)/α

= 10.7  / 1.96

= 5.45s

θ = ω1t + (1/2)αt^2

 = 58.31 - 29.12 = 29.21

Generally speaking, deceleration is a decrease in acceleration. When an object's speed decreases with respect to time, it is said to be decelerating. In contrast to acceleration, deceleration involves a negative rate of change in velocity.

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The earth's acceleration toward the apple is 6.064×10⁻²⁵ m/s²

What is acceleration?
The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics. It is a vector quantity to accelerate (in that they have magnitude and direction). The direction of the net force acting on an object determines the direction of its acceleration. According to Newton's Second Law, the amount of an object's acceleration is the combined result of two causes:

The amount of the net resultant force, which is directly proportional to the sum of all external forces acting on that object;
Depending on the materials used to create it, an object's mass is inversely related to its magnitude.

Force on earth = 0.37×9.8 = 3.626N.

Acceleration of earth = 3.626/5.98×10²⁴ = 6.0635×10⁻²⁵  m/s²

Therefore, The earth's acceleration toward the apple is 6.064×10⁻²⁵ m/s²

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Answer:OB=58.3m

Explanation:

So here cow wanders 30m in north and turns 22 degrees in right side and moves 40m more, as shown in figure given.

now take the starting point as a origin such that cow moves in x-y co-ordinate axis.

As shown in figure length OA is the length when cow moves in north or y direction. Later she takes 22 degrees turn to right and moves 40m more.

So the final displacement is the length of cow from the origin that is length OB.

now co-ordinates of B are [40cos22°,40sin22°+30] i.e [37.084,44.984]

now displacement of cow= length of OB

                                           = [tex]\sqrt{[37.084]^{2}+[44.984]^{2} }[/tex]

                                           =[tex]\sqrt{3398.78}[/tex]

                                     OB =[tex]58.3[/tex]

31.257 radian  is the drill's angular displacement during that time interval.

initial angular speed  ω0 = 5.27 rad/sec , ang.acceleration  α = 0.399 rad/s2 , time t = 4.99 sec

angular displacement

θ = ω0 t + 1/2×αt^2

solving we get

θ = 31.257 rad

The angle at which a point revolves about a center or a line around a certain axis is known as the angular displacement of a body. We cannot examine a body's motion as a particle when it is moving or being rotated on its axis.

Rotational motion is the movement of a rigid body about a fixed axis. When the body or item is thought of being rigid, dealing with rotation is made simpler and easier. At every moment (t), the item experiences a change in acceleration and velocity similar to circular motion.

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Answer: a=.347

Explanation: Acceleration can be calculated by subtracting the initial velocity (2.1 m/s) from the final velocity (7.3) and dividing the difference by the time (15s).

[tex]\frac{7.3-2.1}{15} = .347[/tex]

Answer:

T² ∝ r³

The direction is the force that the bed exerts on the crate Forward.

Friction between the track and the crate holds the crate in place and allows the crate to move with the vehicle. As a result, the crate's frictional force is directed north, in the same direction as the truck's velocity. As mentioned earlier, both the horizontal and vertical forces have a magnitude of 0 so there is no net force on the box. Therefore, the force on the box has no direction.

The net force always has the same direction as the acceleration. For an object in a circular motion with constant velocity, the net force is directed toward the center of the circle around which the object is moving. The frictional force acts on a moving object, and its direction is opposite to the direction of movement. As we walk, our feet are pushed backward so friction works in the opposite direction to counteract the push.

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Answer:

Explanation:

Given:

F = 350 N

g = 10 m/s²

___________

m - ?

m = F / g = 350 /  10 = 35 kg

Answer:

when he shot a beam of alpha particles at a sheet of gold foil, a few of the particles were deflected. He concluded that a tiny, dense n)ucleus was causing the deflections. SO the 3rd option :)

Explanation:

its like 4 a_m r)n why am i on brainly id_k have a nice day !

mg x sin A calculates the force pushing the mass down the hill. Additionally, this force has the same formula: m x a, where an is the actual acceleration in the plane. By dividing the difference between the two speeds by the provided time, or 5.07 m/s - 1.31 m/s / 1.73 s = 4.34 m/s2, the acceleration a may be calculated.

Ma is therefore equal to mg times sin A, or sin A = a / g, or 4.34 m/s2 times 9.81 m/s2 times 0.439.

A = arc sin(0.439)sin(26.0) =

Friction is a force that prevents two solid objects from rolling or sliding over one another. Although frictional forces, such the traction required to walk without slipping, may be advantageous, they can provide a significant amount of resistance to motion.

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The force exerted on each of its edges  at the given shear stress and area is determined as 2.8 x 10¹⁰ N.

The force exerted on each plate is calculated by applying the formula for shear stress as shown below.

Shear stress is the force that tends to cause deformation of a material by slippage along a plane or planes parallel to the imposed stress. Like the name implies, shear stress or forces tends to "shear" object or cause deformation of materials.

F = Aσ

where;

Substitute the given parameters and solve for the force applied to create the shear stress.

F = (0.8 m²) x (3.5 x 10¹⁰ Pa)

F = 2.8 x 10¹⁰ N

Thus, the force exerted on each of its edges resulting in the given displacement increases as the shear stress increases.

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The speed of the object is 3.0m/s and the direction is equal to the direction of its initial velocity.

Given:
mass of the object m=2.0kg
object's constant velocity before the action of the force v0=1.0m/s 

From the graph of the force against time,
we can see that the force is constant (F=8.0N)
and it only acts for Δt=0.5s in the same direction of the object's motion (positive direction, to the right).

Now, using impulse-momentum theorem,
J=Δp
The impulse of the force equals the variation in the object's linear momentum.

In scalar form, along the motion's direction, we can write:
FΔt=Δp

The variation in the linear momentum equals: FΔt=mvf−mv0,
where: vf is the unknown final velocity.
Solving for vf, we have:
vf=8.0N⋅0.5s2.0kg+1.0m/s
= 3.0m/s

The object's velocity after the force ends equals 3.0 m/s, moving to the right.
The force increases the velocity of the object because it acts in the same direction as the initial velocity.

Therefore, the object's speed is 3m/s and the direction is the same direction as the initial velocity.

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The correct answer is option D: halved

Energy becomes half i.e. E' = E/2 if the distance between the plates is doubled.

Let's say the area of parallel plates = A

The distance between plates = d

The potential difference between Plates = V

Now, the capacitance is given by

C = ∈[tex]o[/tex] A / d

If the separation between the plates is doubled then the value of capacitance will become half.

C' = ∈[tex]o[/tex] A / 2d

C' = C/2

Now, we can determine the electrical energy stored in the capacitor which is given by

E = [tex]\frac{1}{2}[/tex] [tex]CV^{2}[/tex]

When the distance between the plates is doubled then energy becomes

E' = [tex]\frac{1}{2}[/tex] x [tex]\frac{C}{2}[/tex] x [tex]V^{2}[/tex]

E' = E/2

Thus, energy becomes half i.e. E' = E/2 if the distance between the plates is doubled.

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The complete question is:

A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery that maintains a constant potential difference V across the plates. If the separation between the plates is doubled, the electrical energy stored in the capacitor will be: _______

a- doubled

b- unchanged

c- quadrupled

d- quartered

e- halved

ANSWER:

Sphere B

STEP-BY-STEP EXPLANATION:

The time of the air depends on the mass, initial velocity and the height of the object, having the same mass and the same height, it depends only on the initial velocity.

The higher the initial velocity, the shorter the time in the air, therefore in this case the sphere B that has a lower velocity will be the one that will spend the longest time in the air.

Given,

The distance covered by the football, d=30 m

The time it takes for the football to cover the given distance, t=2.5 s

The speed of an object is given by the ratio of the distance covered by the object to the time it takes for the object to cover that distance.

Thus the speed of the ball is given by,

On substituting the known values in the above equation,

Thus the speed of the ball is 12 m/s

Therefore the correct answer is option B.

density   ρ=mass/volume  density accuracy > 1%

cube volume  = 27 cm^3&mass = 140.4 g Density =140.4/27=5.2g/cm^3 sphere volume = 12 cm^3&mass= 61.6 g Density =61.6/12=0.133g/cm^3

mass per unit volume of a solid substance; density. Density is defined as d = M/V, where M stands for mass, and V for volume. The unit of density that is most frequently used is grammes per cubic centimetre. For instance, the density of Earth is 5.51 grammes per cubic centimetre, while the density of water is 1 gramme per cubic centimetre. Kg per cubic metre is another way to measure density (in metre-kilogram-second or SI units). Air, for instance, has a density of 1.2 kilogrammes per cubic metre. Books and manuals list the densities of typical solids, liquids, and gases. An easy way to determine a body's mass from its volume, or vice versa, is by its density.

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25 Newton is the average net force on the small boat during the 20s period

initial velocity of boat=0.5m/s

after t= 20s, velocity of boat= -2m/s

acceleration of boat=

[tex]a=v-u/t=-2-0.5/20[/tex]

[tex]a=-0.125m/s^2[/tex]

total weight= 200 kg

average net force= ma

average net force=200×0.125

average net force=25N

In mechanics, a force is any action that seeks to preserve, modify, or deform a body's motion. Isaac Newton's three principles of motion, which are outlined in his Principia Mathematica, are frequently used to illustrate the idea of force (1687).

Newton's first law states that unless a force is applied to a body, it will stay in either its resting or uniformly moving condition along a straight path. According to the second law, when an external force applies on a body, the body accelerates (changes velocity) in the force's direction.

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When air expands it is warm outside then the air is contracted and becomes cool.

The atmosphere of Earth or also known as air is the layer of gases retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere.

When warm air expand,  the molecules heat and move faster makin them to move apart. So we know that air expands when heated and contracts when cooled, the reason for that is because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.

Atmospheric convection helps us to understand that as air heats up and becomes less dense, it rises higher into the air. As it reaches higher elevations, it encounters less air pressure. The lower air pressure at higher elevations allows the air to expand even more. As this air continues to expand, it begins to cool down.

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The a3=MT2 is a variant of Kepler's third law. Where a denotes the semi-major axis distance in AU, M the central body mass in solar masses, and T the orbital period in years.

These are Jupiter's largest moons, and they were the first four discovered beyond Earth in 1610 by astronomer Galileo Galilei. The mass of Jupiter can be calculated by studying the motion of one of these moons and applying Kepler's third law and Newton's law of universal gravitation. Sending a spacecraft to a planet and measuring the acceleration due to gravity as the spacecraft passes by it is the most accurate way of measuring its mass.

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The change in temperature in kelvin, given that the system was heated from 5 °C to 10 °C is 278 K

We'll begin by obtaining the change in temperature in degree Celsius. This can be obtained as follow:

ΔT = T₂ – T₁

ΔT = 10 – 5

ΔT = 5 °C

Finally, we shall convert 5 °C to unit in kelvin. This can be obtained as follow:

T(K) = T(°C) + 273

T(K) = 5 + 273

T(K) = 278 K

Thus, from the above calculation, we can conclude that the change in temperature is 278 K

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The gas that makes up this layer is Ozone.

The ozone layer protects the earth from most of the sun's UVB rays. Greenhouse gases are a set of gases that accumulate in the lower layer of the atmosphere, the troposphere and absorb infrared radiation to increase the average temperature of the Earth's surface. At the top of the stratosphere, 30 miles up, ozone absorbs most of the sun's harmful UV rays.

At the top of the troposphere 12 miles up, ozone acts as a greenhouse gas and traps heat. The troposphere is the lowest layer of the Earth's atmosphere. Most of the atmospheric mass is in the troposphere. Most types of clouds are in the troposphere, and almost all weather phenomena occur in this layer. Ozone protects the earth's surface from ultraviolet radiation from the sun. The ozone layer reduces the risk of skin cancer.

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Answer:

Vy = V0 * sin θ          vertical speed

Vy = 30 m/s * sin 29 = 14.5 m/s

t = 14.5 m/s / 9.8 m/s^2 = 1.48 sec         time to reach max height

H = Vy t - 1/2 g t^2       acceleration is in opposite direction to initial Vy

H = 14.5 m/s * 1.48 s - 1/2 * 9.8 m/s^2 * (1.48 s)^2

H = 10.7 m

The ranking  in order from largest to smallest of the magnitudes of the horizontal forces f1 , f2 , and f3 acting on the arrows is F1=F2=F3>0 because there is no change in the horizontal motion of the arrows.

All three arrows in the scenario have been shot and it is assumed that air resistance can be neglected. With the motion of the arrows in horizontal direction, there is no likely change in the horizontal motion of the three arrows. This makes the three forces equivalent to one another and each force is equal to zero (i.e. F1=F2=F3=0).

Here's the complete question:

Rank in order, from largest to smallest, the magnitudes of the horizontal forces F1, F2, and F3 acting on the arrows. Some may be equal. State your reasoning. Rank in order, from largest to smallest, the magnitudes of the horizontal forces , , and acting on the arrows. Some may be equal. State your reasoning.

a. F3>F1=F2 because the mass of the first arrow is equal to the mass of the second arrow which is less than the mass of the third arrow.

b. F1=F2=F3=0 because there is no change in the horizontal motion of the arrows.

c. F1>F2=F3 because the velocity of the second arrow is equal to the velocity of the third arrow which is less than the velocity of the first arrow.

d. F1=F2=F3>0 because there is no change in the horizontal motion of the arrows.

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