A 5.4-kg ball is thrown into the air with an initial velocity of 35.2 m/s.a

How much kinetic energy does the ball have?

Answer:

A. New problem or discovery Engineering solution Development Research Explanation:

A possible  sequence of steps in the research and development cycle are  A. New problem or discovery Engineering solution Development Research​. In the  research and development cycle, the first step is the problem that a scientist observe. After that we have discover a solution for that problem through many research so the above materials are the possible sequence of steps in the research and development cycle.

A satellite coasting at constant speed in a circular orbit is nevertheless accelerating.

A satellite (or any mass, manufactured or natural, orbiting around another object) can do that at a constant speed by coasting around the planet. The moon or the International Space Station, a research facility 400 km above the earth's surface, are two examples of such satellites.

A satellite orbiting the Earth accelerates in a direction that is perpendicular to its center of gravity. An accelerated circular orbit around the planet is taken by a satellite. Velocity affects acceleration. There is magnitude and direction to velocity. Although the satellite is traveling at a constant pace, its direction of travel is shifting. As a result, velocity alters. The motion has accelerated if the velocity is changing.

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Complete question:

When a satellite coasts in a circular orbit at a constant speed about Earth, is it accelerating? If so, in what direction? If not, why not

Force the atmosphere exert on the flat end of each cylinder is 2.9 x 10⁴ N

F = PA

Number of which need to pull the two cylinders

n=F : (m.g)

Force exerted on the flat end, F= PA

=P(πr²)

= (1.013 x 10⁵ Pa) x π(30 x 10⁻²m)²

=28.62 x 10³N

= 2.9 x 10⁴ N

Force is the push and pull that occurs on an object. In physics, force is any interaction that can cause an object with mass to experience a change in motion, either in terms of direction or geometric construction.

In simple terms, the notion of force is a push or pull on an object with mass that causes the object to change its speed. Whenever there is an interaction between two objects, there is a force on each of them. When the interaction stops, the two objects are no longer experiencing a force.

Force is symbolized by the letter F (Force). In International Units , the unit used to measure force is the Newton, which is denoted by N. The instrument for measuring force is a dynamometer, or spring balance.

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Answer:

the height of the wall is 45 m

Explanation:

A solar sail is a type of spacecraft that uses radiation pressure from a star to propel itself, similar to how wind propels a sailboat.

The sails of these spacecraft are made of large reflecting panels, which maximize the area to catch the most incident photons and maximize the transfer of momentum from the radiation. In order for the spacecraft to be pushed away from a star by the incident photons, the force of the radiation pressure must be greater than the gravitational attraction from the star emitting the photons. The critical parameter that determines the effectiveness of the solar sail is the area density, which is the mass per unit area of the sail.
To understand how the area density affects the propulsion of the spacecraft, let's consider an example. Imagine we have two solar sails of different area densities. Sail A has a lower area density than sail B. When both sails are exposed to the same amount of incident photons, sail B, with the higher area density, will experience a larger force of radiation pressure. This is because sail B has more mass packed into the same area, resulting in a greater transfer of momentum from the incident radiation. Therefore, sail B will be propelled with a greater force than sail A.
In conclusion, the area density of the solar sail is a critical parameter that determines the propulsion of the spacecraft. By maximizing the area and mass per unit area of the reflecting panels, the sail can catch the largest number of incident photons and transfer more momentum, resulting in a stronger force of radiation pressure. This allows the spacecraft to overcome the gravitational attraction from the star and propel itself forward. A solar sail is a spacecraft that uses radiation pressure from a star to generate propulsion, similar to how wind propels a sailboat. The sail of a solar sail spacecraft is made up of large reflecting panels, which are designed to maximize the area available for catching incident photons and transferring their momentum to the spacecraft. The key to understanding the effect of radiation pressure on the spacecraft is the area density of the sail. Area density refers to the mass per unit area of the sail. A higher area density means that there is more mass packed into a given area of the sail. When a solar sail is exposed to incident photons, the photons transfer their momentum to the sail, resulting in a force known as radiation pressure. This force pushes against the sail and propels the spacecraft forward. Now, let's consider the case where the force of radiation pressure is greater than the gravitational attraction from the star emitting the photons. In order for the spacecraft to be simply pushed away from the star by the incident photons, the force of radiation pressure must overcome the gravitational force. This requires the radiation pressure to be greater than the gravitational attraction. The area density of the sail plays a crucial role in determining the effectiveness of the solar sail. By maximizing the area and mass per unit area of the sail, the sail can catch the largest number of incident photons and transfer more momentum. This results in a stronger force of radiation pressure, increasing the likelihood of overcoming the gravitational attraction. In conclusion, the area density of the sail is a critical parameter for the solar sail spacecraft. By maximizing the area and mass per unit area of the reflecting panels, the sail can catch a larger number of incident photons and transfer more momentum. This ultimately leads to a stronger force of radiation pressure, allowing the spacecraft to overcome the gravitational attraction and move away from the star.

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ANSWER

EXPLANATION

If force F keeps the object in equilibrium

Answer:

See below

Explanation:

Find the x components of all of the forces shown, add them together, the x-component of the force F will be exactly opposite ( same magnitude but 180 degrees different)

30 cos 55  +     40 cos 205   +   50 cos 320  =  19.26    <====x component sum of all of the forces shown

F  (the x component of ) will be   Either    - 19.26   At zero degrees

                                                                 Or 19.26 at 180 degrees

Answer:

Effects of Interia

As a more familiar example of inertia, think about riding in a car. ... If the car comes to a sudden stop, your body tends to keep moving forward. When the car starts moving again, your body tends to stay at rest. You move forward because the car seat exerts an unbalanced force on your body.

According to Newton's third law, action and reaction are equal and opposite.

According to Newton's third law, action and reaction are equal and opposite.

When the car suddenly stops due to the braking force, a reaction force counterbalances it which tends to move the passengers forward hence they all jolt forward.

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The force acting on the pumpkin here is a centripetal force. Hence the speed of the pumpkin weighing 30.5 Kg has after the wire breaks is 5.72 m/s.

Centripetal force is the force acting on a body which moves through a curvature. The centripetal force is directed perpendicular to the motion of the object and along the radius of the circular path.

The centripetal force F = mv²/r

Given that the force is 500 N and the radius of the circular path is 2 m, mass of pumpkin is 30.5 Kg. Thus velocity can be calculated as :

v = √(F r/ m)

  = √(500 N × 2 m) /  30.5 Kg

  = 5.75 m/s.

Therefore, the maximum speed of the pumpkin will be 5.75 m/s.

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Answer:

Approximately \(4.6 \times 10^{2}\; \rm m\).

Explanation:

The acceleration of this object is constant. Hence, the SUVAT equation would apply to the motion of this object. Since the duration of this acceleration is not given, apply the SUVAT equation that does not include time.

\(v^{2} - u^{2} = 2\, a\, x\).

Rearrange this equation to find an expression for displacement, \(x\):

\(\begin{aligned}x &= \frac{v^{2} - u^{2}}{2\, a}\end{aligned}\).

In this question, it is given that the initial velocity is \(u = 78\; \rm m\cdot s^{-1}\), the velocity after acceleration is \(v = 2\; \rm m\cdot s^{-1}\), and the acceleration is \(a = -6.65\; \rm m\cdot s^{-2}\). Evaluate the expression above to find the displacement of this object:

\(\begin{aligned}x &= \frac{v^{2} - u^{2}}{2\, a} \\ &= \frac{{(2\; \rm m\cdot s^{-1})}^{2} - {(78\; \rm m\cdot s^{-1})}^{2}}{2 \times (-6.65\; \rm m\cdot s^{-2})} \\ & \approx 4.6 \times 10^{2}\; \rm m\end{aligned}\).

Answer: 2

Explanation:

The linear diameter of an object with an angular diameter of 25 arcseconds and a distance of 65 km will be 0.067 meters.

Linear Diameter = (Angular Diameter ×Distance) / 206264.81.

In this case, the linear diameter would be 0.067 meters.

To put this into context, a linear diameter of 0.067 meters is approximately equal to 6.7 centimeters, or 2.6 inches. To put this another way, it is approximately the size of a large grape. As such, it is incredibly small and would be difficult to see with the  eye.

Therefore the linear diameter of the object is 0.067 meters

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Answer:

Air is what you breath in

Answer:

kinetic energy as it involves dispersal of energy

By using Hooke's Law, the spring constant is 0.62 lb/ft.

We need to know about Hooke's Law to solve this problem. Hooke's Law describes the force applied to spring (elastic materials) will proportional to spring constant and displacement under the elastic condition. It can be described as

F = k . x

where F is force, k is spring constant and x is displacement.

From the question above, we know that

F = 8 lb

x = 13 ft

By substituting the given parameters, we get

F = k . x

8 = k . 13

k = 8/13

k = 0.62 lb/ft

Hence, the spring constant is 0.62 lb/ft.

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Answer:

Explanation:

To calculate the height of the table in this scenario, we can use the equations of motion. Let's define the variables first:

Initial velocity (u) = 2.50 m/s (given)

Time taken to reach the floor (t) = 0.391 s (given)

Acceleration due to gravity (g) = 9.8 m/s² (assuming the ball falls freely near the surface of the Earth)

Now, we can use the kinematic equation:

h = u * t + (1/2) * g * t²

Plugging in the given values, we have:

h = (2.50 m/s) * (0.391 s) + (1/2) * (9.8 m/s²) * (0.391 s)²

Simplifying the equation:

h = 0.97875 m + 0.07511 m

h = 1.05386 m

Therefore, the height of the table is approximately 1.05386 meters.

Answer:

8.9*10^5

Explanation:

as we know that  

K.E =1/2 mv²

where m is mass and v is velocity

given mass= 1120 kg

given velocity =40 m/s

so K.E=1/2 (1120)(40)²

K.E=1792000/2

K.E=896000

K.E=8.9*10^5

Answer:

8.9* 10^5

Explanation:

The period is 38 minutes, since it takes 38 minutes for the ride to complete one revolution. There are no vertical displacements or phase shifts in this equation.

Vertical is a term that can be used to describe a straight line that goes from top to bottom and is perpendicular to the horizon. It may be used to describe a physical orientation, such as a wall, a building, or a mountain face. It may also refer to a direction, as in the phrase “vertical ascent” which means going up. It is sometimes used to describe a person's attitude, as in “vertical thinking” which means the person is focused and organized. In business, vertical can refer to a company's business model, where they own and manage the whole chain of production, from raw materials to finished products. In computing, vertical can refer to the orientation of a computer screen, where the longer side is vertical and the shorter side is horizontal.

The equation describing the height of a rider on the ferris wheel is:

h(t) = 250sin(2πt/38),

where h(t) is the height of the rider in meters, t is the time in minutes, and 250 is the amplitude.

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Answer:

Inside a femur bone found in the woods,

saliva of gum

Answer:

the answer up top is correct

The physical pendulum consists of a meter stick that is pivoted at a small hole drilled through the stick a distance 0.056mfrom the 50 cm mark

The period of a physical pendulum is given by T = 2π √(L/g), where L is the length of the pendulum and g is the acceleration due to gravity. We can use this formula to find the distance d.

To find d, we use the formula:

T = 2π √(L/g)

Where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity.

We know that T = 2.5 s, g = 9.8 \(m/s^2\) and L is the distance from the pivot point to the center of gravity of the pendulum which is the 50 cm mark on the meter stick, so L = 0.5m.

We can rearrange the formula to solve for d :

d = L * √(\(T^2/4$\pi^2\) -1/g)

With the given values we can substitute in the formula

d = 0.5* √(\(2.5^2/4$\pi^2\) -1/9.8)

d = 0.056m

Therefore, The distance d from the 50cm mark is approximately 0.056m.

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Answer:This will hopefully help. It took me a while so will you mark me brainliest? Thanks!

Explanation:

velocity=Vertical (y) info:

• y = -22.0 m

• viy = 0 m/s

• ay = -9.8 m/s2

distance=

acceleration=

time=

horizontal=Horizontal (x) info:

• x = 35 m

• vix = ?

• ax = 0 m/s2

Initial velocity=16.5 m/s

VOCAB:Horizontal motion is constant

velocity- motion

acceleration-increase in the rate or speed of something.

distance-Distance is a numerical measurement of how far apart objects or points are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria (e.g. "two counties over"). The distance from a point A to a point B is sometimes denoted as. .

time-a point of time as measured in hours and minutes past midnight or noon.

Explanation:

The soccer ball travels a horizontal distance of

33.9 m after being kicked with horizontal velocity of 18.8ms−1. Assuming air resistance is negligible.

Time of flight of the ball

t=Distance Speed=33.918.8s In the vertical direction kinematic equation is

height

h=ut+12gt2 Initial velocity uv=0, acceleration due to gravity g=9.81ms−2. Inserting various values we get h=0×33.918.8+12×9.81×(33.918.8)2⇒h=12×9.81×(33.918.8)2

⇒h=15.9m, rounded to 3 sig. figs

Answer:

Heat vs temperature - Energy Education The core difference is that heat deals with thermal energy, whereas temperature is more concerned with molecular kinetic energy. Heat is the transfer of thermal energy, whereas temperature is a property the object exhibits.

Answer:

133.33 mm

Explanation:

First we need to find the volume of the sphere. The volume of a sphere is given by:

V = (4/3) * pi * r^3

With a radius of 10 cm, we have:

V = (4/3) * pi * r^3 = 4188.79 cm3

The sphere will be moulded into a cylinder, so the volume will be the same. The volume of a cylinder is:

V = pi * r^2 * h

Where h is the height of the cylinder, and for this case, it will be the length.

The radius is the same old radius, so we have:

4188.79 = pi * 10^2 * h

h = 4188.79 / 100pi = 13.3333 cm

In millimeters, we have h = 133.33 mm

Answer: Any chemical reaction is an example of a chemical change. Examples include: Combining baking soda and vinegar (which bubbles off carbon dioxide gas)Jan 13, 2020

Explanation:

Answer:  Make the frequency higher for number 1 and have the same amplitude.

Explanation: Wavelength and frequency are directly related so if you change one of those then you can't keep the other one the same. You would need to raise the frequency which would make 1 louder and keep amplitude the same for both so that 1 is louder.

To make the sounds match in pitch while making sound wave 1 louder than sound wave 2 : Increase the frequency for wave #1 while setting their amplitudes at the same value

The wavelength of a sound wave is inversely proportional to its frequency therefore when the frequency of wave 1 is increased its wavelength decreases with equal proportion.

Since the increase in frequency results to a decrease in wavelength. therefore to make wave 1 louder, both waves we will have to set the amplitude values of the waves at the same amplitude.

Hence we can conclude that to make the sounds match in pitch while making sound wave 1 louder than sound wave 2 ; Increase the frequency for wave #1 while setting their amplitudes at the same value.

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Compared with a simple galvanometer, an electric motor is Much the same with small modifications.

An electric motor is a device for converting electrical energy into mechanical energy. A tool that functions the other way around, converting mechanical energy into electrical energy is called a generator or dynamo. Electric motors can be found in household appliances such as fans, washing machines, water pumps, vacuum cleaners. and much more.

Electric motors that are commonly used in the world Industry are asynchronous electric motors, with two global standards namely IEC and NEMA. metric (millimeter) based IEC asynchronous motors, while imperial  (inch) based NEMA electric motors, in applications there are power units in horsepower (hp) and kiloWatt (kW).

IEC electric motors are divided into several classes according to their efficiency, as a standard in the EU, this class division is EFF1, EFF2 and EFF3. EFF1 is the most efficient electric motor, consumes the least amount of energy, while EFF3 is no longer allowed to be used in the EU environment, because it wastes fuel in the power plant and will automatically generate the most carbon emissions, thus polluting the environment even more.

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The range of the maximum energy beta ray (2.37 MeV) from 90Y in bone of density 1.9 g/cm3 is approximately 20.1 cm.

The range of a beta particle in a material depends on its energy and the density of the material. The energy loss of the beta particle as it travels through the material is due to collisions with the atomic nuclei in the material. This means that the range of the beta particle decreases as its energy decreases.

To calculate the range of a beta particle in bone, we can use the following formula:

R = 0.412 * E_max * (ρ_d/ I)

Where:

R = range in cm

E_max = maximum energy of beta particle in MeV

ρ_d = density of bone in g/cm3

I = average ionization potential of bone in MeV

For bone, the average ionization potential is approximately 85 eV, which is equivalent to 0.085 MeV.

Substituting the given values, we get:

R = 0.412 * 2.37 * (1.9 / 0.085) = 20.1 cm

Therefore, the range of the maximum energy beta ray (2.37 MeV) from 90Y in bone of density 1.9 g/cm3 is approximately 20.1 cm.

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