A centripetal force of 190 N acts on a 1,550-kg satellite moving with a speed of 5,300 m/s in a circular orbit around a planet. What is the radius of its orbit?

Answer:

75N

Explanation:

a = v/t = 3/2

F = ma = 50(3/2) = 75

The diver's highest point above the board is 0.60 meter, her feet are in the air for 0.684 second, and her velocity when her feet hit the water is 3.43 m/s downward.

To find the diver's highest point, we can use the fact that at the highest point, her velocity will be zero. We can use the equation:

v² = u² + 2as

where u is the initial velocity, v is the final velocity (which is zero at the highest point), a is the acceleration due to gravity (g = 9.81 m/s²), and s is the distance traveled. Solving for s, we get:

s = (v² - u²) / 2a

s = (0 - (3.35 m/s)²) / (2 × -9.81 m/s²)

s = 0.60 m

So the diver's highest point is 0.60 m above the diving board.

To find how long the diver's feet are in the air, we can use the fact that the time of flight (i.e. the time spent in the air) is twice the time it takes to reach the highest point. We can use the equation:

v = u + at

where t is the time, and v and u are the final and initial velocities, respectively. Solving for t, we get:

t = (v - u) / a

At the highest point, the velocity is zero, we can use u = 3.35 m/s and v = 0:

t = (0 - 3.35 m/s) / -9.81 m/s² = 0.342 second

So the time of flight is twice this value, or 0.342 × 2 = 0.684 second.

To find the diver's velocity when her feet hit the water, we can use the same equation as in part (b), but with u = 0 and v as the velocity we want to find. We can also use the fact that the distance traveled from the highest point to the water is the same as the distance traveled from the takeoff point to the highest point (0.60 m). So we have:

s = (v² - u²) / 2a

0.60 m = (v² - 0) / (2 × -9.81 m/s²)

v = -√(2 × -9.81 m/s² × 0.60 m) = -3.43 m/s

The negative sign indicates that the velocity is downward, which makes sense since the diver is falling feet first into the water. So the diver's velocity when her feet hit the water is 3.43 m/s downward.

To learn more about downward velocity visit: https://brainly.com/question/30003698

#SPJ4

Answer:

338N

Explanation:

Use the formula \(f=\frac{\sqrt{\frac{T}{\frac{M}{L}} } }{2L}\)

f is the frequency, T the string tension, M the mass, and L the length

convert units to seconds, kilograms, meters

\(65Hz\ =\ \frac{\sqrt{\frac{T}{\frac{0.005kg}{m}}}}{2\cdot2m}\)

now solve for T

sqrt(T/.005) = 65*4 = 260

T = 338N

Answer:   Mechanical energy is the energy that is possessed by an object due to its motion or due to its position.

(The energy acquired by the objects upon which work is done)

Because Albert Einstein studied that photoelectric effect in 1905—the capacity of light to eject electrons from the a metal surface—a current between metal electrodes can flow as a result of this phenomenon.

Three crucial aspects of the photoelectric effect are not explicable in classical physics: (1) the lack of a lag time; (2) individual independence of the photoelectrons' kinetic energy from the strength of the incident radiation; and (3) the presence of a snipped frequency.

The photoelectric effect is important because it proves that light has properties similar to those of particles. It was proven that light may be thought of as photons, or energy packets, where each photon interacts with one electron so each photon must possess sufficient energy to knock out each electron for light to exist.

To know more about Photoelectric effect visit:

https://brainly.com/question/9260704?

#SPJ4

Answer: 136 Newtons (136N)

Explanation:

Newton's Law of Gravitation states that the gravitational force is proportional to the masses of the two objects, and their separation distance between them. The proportionality constant is called Newtons constant denoted as capital 'G':

\(F=GMm/r^2\)

Now, due to Newton's 2nd Law of motion, we know that a net force acting on an object causes an acceleration. We can also say that the force is:

\(F=ma\)

Setting both of these equations equal to each other, we get:

\(ma=GMm/r^2\)

The smaller 'm' will cancel giving that the acceleration is:

\(a=GM/r^2\)

This is the equation which gives the gravitational field created from a source mass 'M'. To find the weight, find the product between the test mass and the gravitational field created by the source mass:

\(Weight=mass*acceleration\)

\(W=ma\)

\(W=(85kg)(1.6m/s^2)\)

\(W=136N\)

The units are Newtons due to weight being a force.

Answer:

fifth harmonic

Explanation:

The sound waves are the longitudinal waves that require a medium to propagate through. The sound waves are carried by the vibrations of the medium. The wave from a speaker is an example of sound waves.

Electromagnetic waves are transverse waves that consist of electric and magnetic fields perpendicular to each other and to the direction of propagation of the wave. The electromagnetic waves do not require any medium to travel through. Examples are X-rays, UV rays, gamma rays etc.

Thus the correct arrangement is

Sound waves:- waves from a speaker, require a medium to travel through, longitudinal waves.

Electromagnetic waves:- do not require a medium, transverse waves, gamma rays.

Answer:

got it right on edge 2023

Explanation:

The uncertainty of the heavy object if the scale remains constant is 0.24 lbs.

The percent uncertainty in measuring the light weight object is calculated as follows;

\(= \frac{0.034}{11} \times 100\%\\\\= 0.309\%\)

The uncertainty of the heavy object if the scale remains constant is calculated as follows;

\(= \frac{0.309}{100} \times 78.0 \ lbs\\\\= 0.24 \ lbs\)

Learn more about percent uncertainty here: https://brainly.com/question/5493941

A program that could do an instantaneous analysis of video motion will be useful it in a sportscast to analyze events as they occur.

A motion video is defined as the display of video images at a rate (such as thirty frames per second) that causes objects to appear to move smoothly and continuously.

Sports inherently involve fast and accurate motion, which can be difficult for competitors to master but also for coaches and trainers to analyze and audiences to follow. Because of the nature of most sports, monitoring with sensors or other devices attached to players or equipment is generally not possible. This opens up a plethora of opportunities for the use of computer vision techniques to assist competitors, coaches, and the audience

Learn more about motion on:

https://brainly.com/question/27802581

#SPJ1

The rotational velocity of the centrifuge is \(\sqrt{5}\) rad/s.

Centripetal force is defined as the force that acts on a body moving in circular path which is directed towards the centre of the circular path.

Here,

The rotational acceleration attained by the astronauts, a' = 100 m/s²

The radius of the centrifuge, r = 20 m

From the equation of circular motion,

       a' = rω²

So,  ω² = a'/r

      ω² = 100/20

      ω² = 5

Rotational velocity, ω = \(\sqrt{5}\) rad/s

Hence,

The rotational velocity of the centrifuge, ω is \(\sqrt{5}\) rad/s

To learn more about Centripetal forces, click:

https://brainly.com/question/1869806

#SPJ9

Answer:

B

Explanation:

Dressage is a horse racing sport.

Answer: The MF band is also known as the hectometer band as the wavelengths range from ten to one hectometer

Explanation:

According to Chargaff's rule, the amounts of adenine (A), thymine (T), and guanine (G) in the DNA molecule are equal to each other. The amounts of cytosine (C) and guanine (G) are also equal.

Erwin Chargaff was a biochemist, author, Bucovinian Jew who immigrated to America during the Nazi era, and professor of biochemistry at Columbia University's medical school.

Chargaff found patterns among the four bases, or chemical building blocks, of DNA, which are directly related to DNA's function as the genetic material of living things.

He was born in Austria-Hungary. Heraclitean Fire: Sketches from a Life Before Nature, an autobiography he penned, received positive reviews.

Learn more about Erwin Chargaff here:

https://brainly.com/question/14083251

#SPJ1

The quantity of heat energy that must be transferred to 2.25 kg of brass to raise its temperature from 20 °C to 240 °C is 195030 J

First, we shall list out the given parameters from the question. This is shown below:

The quantity of heat energy that must be transferred can be obtained as follow:

Q = MCΔT

= 2.25 × 394 × 220

= 195030 J

Thus, we can conclude quantity of heat energy that must be transferred is 195030 J

Learn more about heat:

https://brainly.com/question/16398667

#SPJ1

Answer:

biomass energy, hydropower and wind energy

The buoyant force on the cannon stays the same as long as it is fully under water because the buoyant force is determined by the volume of fluid that the cannon displaces and not by the weight or mass of the cannon itself.

Archimedes' Principle states that the buoyant force on an object in a fluid is equal to the weight of the fluid that the object displaces. This means that as long as the cannon remains fully submerged in the water and does not change its volume, the amount of water it displaces and thus the buoyant force on the cannon will also remain the same.

In other words, the buoyant force is dependent on the fluid's density and the volume of the object, not its weight. So, as long as the volume of the cannon and the density of the fluid surrounding it remain constant, the buoyant force will also stay constant.

The buoyant force on the cannon will stay the same as long as it is fully under water.

The buoyant force on an object is equal to the weight of the fluid displaced by the object. The buoyant force is always directed upwards, and it opposes the force of gravity. As long as the cannon is fully under water, the amount of water displaced by the cannon will stay the same. This means that the buoyant force on the cannon will also stay the same.

The buoyant force on an object depends on the density of the fluid, the volume of the object, and the acceleration due to gravity. The density of water is constant, so the buoyant force on the cannon will only change if the volume of the cannon changes or if the acceleration due to gravity changes.

Neither of these factors change. The volume of the cannon does not change as it is being recovered from the shipwreck. The acceleration due to gravity also does not change, as it is the same on Earth's surface as it is underwater.

To know more about the Force, here

https://brainly.com/question/13965534

#SPJ2

Using the periodic table Calcium (Ca)  is most likely to form a positive ion.

Ion is a type of particle that has an electric charge. It can be positively or negatively charged, depending on its atomic structure and the number of protons and electrons it contains. Positively charged ions are called cations and negatively charged ions are called anions. Ions play an important role in a variety of physical and chemical processes, such as forming ionic bonds, allowing substances to dissolve in water, and carrying electrical current in solutions. They are also important in the formation and stability of molecules, as well as in the formation of compounds and minerals.

To learn more about ion

https://brainly.com/question/29881977

#SPJ1

The amount indicated by is not fixed and changes over time. In situations where the linear acceleration is not zero, the velocity is always changing.

The first case is true

Since it depends on time, is not constant?

The amount indicated by is not fixed and changes over time. In situations where the linear acceleration is not zero, the velocity is always changing.

The dimension of the quantity albo will be ufa au av u t when calculating a particle's velocity as a function of time t using the formula v = a(1 - eb), where a and b are constants. (1 - e-b) Greutate, urb'a 221 Aich, a zat a2b3c faut Eleft.

The amount indicated by is not fixed and changes over time. When linear acceleration is absent  .

To learn more about time refer to:

brainly.com/question/17146782

#SPJ1

The quantity represented by v is a function of time (i.e., is not constant).

True or false

A  particle moves with constant acceleration a. The expression VI +80 represents the particles velocity at what instant in time.

A. At a time T=zero

B. At the initial time

A particle starts from the origin at time t = 0 and moves along the positive x - axis. The graph of velocity with respect to time is shown in figure. What is the position of the particle at time t = 5s?

1) Berenice, Chadwick, and Edouard have poor vision (near-sightedness)

The near point, or the shortest distance at which an item can be seen well by a human eye, is 25cm.

The far point is the farthest distance at which an item may be viewed clearly with the bare eye.

Diverging lenses, which produce virtual pictures at the individual's far point when confronted with objects at infinity, can be used to treat nearsightedness.

2) Bernice and Edouard have a near point larger than 25cm and a far point less than infinity, resulting in nearsightedness and hyperopia.

Because of the reasons stated above, the folks listed will need bifocals to correct their vision.

Converging lenses, which produce virtual pictures at the patient's near point when shown with things at 25 cm, can cure farsightedness. To compensate for both farsightedness and nearsightedness, bifocals have both converging and diverging lenses.

3) The near point, or the shortest distance within which an item can be seen well by a human eye, is 25cm.

The far point is the farthest distance at which an item may be viewed clearly with the bare eye.

A hyperopic eye can see far away objects clearly, but its near point grows, thus it is higher than 25cm for that eye.

According to the table, Avishka and Francesca have farsightedness, hence their near point is more than 25cm, hence can be corrected using Converging lenses.

Nearsightedness often runs in families. Objects in the distance seem hazy. The illness can progress slowly or quickly. Treatment options include glasses, contact lenses, and LASIK surgery.

Nearsightedness is frequently caused by an eye that is excessively long or oval-shaped rather than spherical. It might also be caused by a too-steep corneal curvature. As a result of these alterations, light beams collide in front of the retina. The messages transferred from the retina to the brain are distorted.

Learn more about near-sightedness:
https://brainly.com/question/763196
#SPJ1

The centripetal force in Newtons provided by the friction between the blade of the skate and the ice is 490 N

The following data were obtained from the question:

The centripetal force can be obtained as illustrated below:

F = mv²/r

= (50 × 7²) / 5

= (50 × 49) / 5

= 2450 / 5

= 490 N

Thus, we can concluded that the centripetal force is 490 N

Learn more about centripetal force:

https://brainly.com/question/14021112

#SPJ1

Answer:

d is the awnser

Explanation:

MABY?!??

Answer:

Unchanged

Explanation:

horizontal projection always has initial vertical velocity equal to zero.

gravity works pretty much the same at any point on earth and will accelerate any falling object at the same rate traveling the same vertical distance in the same time. Neglecting air resistance of course.

By the way, Δy is read "delta y" not "angle y" which would be "∠ y"

delta represents a change in something, in this case the y coordinate.

Time of flight = 1.6 s

Horizontal distance = 64 m

Projectile motion is the form of motion experienced by an object or particle projected into a gravitational field, such as from the surface of the Earth, and moves along a curvilinear path only under the action of gravity.

For the given case,

h = vt + ¹/₂gt²

h = height of tower

v = initial velocity

t = time of flight

55 = 50sin30t + ¹/₂9.8t²

55 = 25t + 4.9t²

4.9t² + 25t - 55 = 0

t = 1.6 s

X = vₓt

X = horizontal distance

vₓ = horizontal velocity

t = time of flight

X =  (50 x cos30) x 1.6

X =  64 m

To know more about projectile motion visit:

https://brainly.com/question/11049671

#SPJ13

The magnitude of the electric flux through the sheet is 4.05 N m² C⁻¹ (Option E).

The electric flux through a surface is given by the product of the electric field strength and the area of the surface projected perpendicular to the electric field.

In this case, the electric field strength is 18 N C⁻¹, and the area of the sheet projected perpendicular to the electric field is 0.450 m²

(since the normal to the sheet makes an angle of 60° with the electric field). Multiplying these values gives the electric flux:

Electric flux = Electric field strength × Area

Electric flux = 18 N C⁻¹ × 0.450 m²

Electric flux = 8.1 N m² C⁻¹

In summary, the magnitude of the electric flux through the sheet is 4.05 N m² C⁻¹. This value is obtained by multiplying the given electric field strength by the projected area of the sheet perpendicular to the electric field.

The angle of 60° is taken into account to determine the effective area for calculating the flux.(Option E).

for such more questions on electric

https://brainly.com/question/1100341

#SPJ8

Answer:

K.E of the Astronaut is greater

Explanation:

Mathematically;

K.E = 1/2 * m * v^2

For the truck, the kinetic energy will be

1/2 * 21,000 * 130^2 = 177,450,000 J

while for the astronaut, his K.E will be

1/2 * 84 * 28,000^2 = 3.2928 * 10^10

This shows that the K.E of the astronaut is greater

The average speed of the elderly woman walking around the shopping center is 1.80 km/h.

To calculate the average speed of the elderly woman, we can use the formula for velocity, which is equal to the distance traveled divided by the time taken. In this case, the distance traveled is 0.30 km and the time taken is 10 minutes. However, average speed is generally expressed in units of distance per unit of time, so we need to convert minutes to hours.

There are 60 minutes in one hour, so 10 minutes is equal to 10/60 = 1/6 hours.

Now we can calculate the average speed by dividing the distance traveled (0.30 km) by the time taken (1/6 hours):

Average speed = 0.30 km / (1/6 h)

= 0.30 km * (6/1 h)

= 1.80 km/h

Therefore, the average speed of the elderly woman walking around the shopping center is 1.80 km/h.

for more such question on average speed

https://brainly.com/question/4931057

#SPJ8

Ellie's experience of a gender identity that doesn't align with her body is likely linked to gender dysphoria, a condition characterized by distress caused by the incongruence between one's internal sense of gender and assigned sex at birth.

The correct answer is option B.

Gender dysphoria refers to the distress or discomfort individuals may experience when their gender identity does not match the sex they were assigned at birth. It involves a deep-rooted sense of incongruence between one's internal sense of gender and the external physical characteristics.

It is important to note that gender dysphoria is not a result of misinformation or a lack of understanding. It is a genuine psychological condition recognized by medical and mental health professionals. Individuals with gender dysphoria often experience significant distress and may seek gender-affirming interventions, such as hormone therapy or gender-affirming surgeries, to align their physical appearance with their gender identity.

Misinformation, on the other hand, refers to inaccurate or misleading information, which may not directly relate to Ellie's experience. Construed body image and positive body image are also not directly linked to Ellie's situation. Construed body image refers to the way individuals perceive their own bodies, which may be influenced by various factors, while positive body image refers to a healthy and accepting attitude toward one's own body.

In summary, Ellie's experience of a gender identity that doesn't align with her body is likely linked to gender dysphoria. Gender dysphoria involves distress or discomfort resulting from a mismatch between an individual's internal sense of gender and their assigned sex at birth.

Therefore, among the options provided the correct answer is option B.

For more such information on: gender dysphoria

https://brainly.com/question/14153977

#SPJ8