aquaman rests on the bottom of the sea. what is the normal force exerted upon aquaman by the seafloor equal to?

Hi!

Explanation:

A set of wires (called snares) is stretched across a drum head at the bottom of the drum. The vibration of the bottom drum head against the snares produces the drum's characteristic "cracking" tone. Claps, snares, and other "sharp" or "bright" sounds are often used in similar ways in drum patterns.

The skin of the drum vibrates and makes the confetti dance. As the air molecules vibrate against each other, sound waves are formed and the sound of the drums can be heard. Fran explains that the pitch of a drum depends on how tight its skin is. ... Hit a drum hard and this makes big vibrations and a loud sound.

Answer:

The answer is A. Cementing...

Explanation:

hope this helps

Answer:

plate tectonics

Explanation:

brainliest also 100% flvs

θ = 49.3° at this angle she hit the ball.

The initial velocity of the ball can be broken down into its x and y components:

Vₓ = 50 * cos(θ)

Vy = 50 * sin(θ)

The ball's position can be found using the kinematic equations for constant acceleration due to gravity:

\(X = V_{x} * t\\Y = V_{y}* t - (\frac{1}{2}) * 9.81 * t^{2}\)

Since we know the ball's final position is 100 m, we can set these equations equal to 100 and solve for t:

\(100 = V_{x} * t\\100 = V_{y} * t - (\frac{1}{2}) * 9.81 * t^{2}\)

From here, we can solve for the angle θ. Rearranging the initial velocity equation:

Vy = 50 * sin(θ)

We can substitute this into the equation for Y, and solve for θ:

θ = \(arcsin\frac{(2*(100 + (\frac{1}{2})*9.81*t^{2}))}{(50*t)}\)

After solving the equations for t, we can plug that value into this equation for θ and get the angle at which the ball was hit.

The answer is θ = 49.3°

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d.red light has a longer wavelength and lower energy than blue light. Wavelengths of blue light are shorter, ranging from 450 to 495 nanometers.Red light has wavelengths that range from 620 to 750 nm and longer waves.

The wavelength of blue light is short, while that of red light is longer.Since blue light has a shorter wavelength than red light, it is scattered more so than red light, giving the appearance of a blue sky.

Despite being a very small portion of the electromagnetic spectrum, visible light has a wide range of wavelengths.These variances appear to us as colors.Red light, which has the longest wavelength in the spectrum, is on one end.The shortest wavelength of light is blue or violet.

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Answer:

Acceleration of one cyclist=\(2.67m/s^2\)

Yes, the acceleration is higher of another cyclist who accelerates from 0 to 30 m/s in 8 seconds.

Explanation:

We are given that

Initial velocity of one cyclist, u=0 m/s

Final velocity of one cyclist, v=8m/s

Time, t=3 s

Initial velocity of another cyclist, u'=0

Final velocity of another cyclist, v'=30m/s

Time, t'=8 s

We know that

Acceleration, \(a=\frac{v-u}{t}\)

Using the formula

\(a=\frac{8-0}{3}=\frac{8}{3}=2.67m/s^2\)

Acceleration of one cyclist=\(2.67m/s^2\)

Acceleration of another cyclist, a'=\(\frac{30-0}{8}m/s^2\)

Acceleration of another cyclist, a'=\(3.75m/s^2\)

Yes, the acceleration of another cyclist is higher than the cyclist which accelerates from 0m/s to 8m/s.

Answer:

The ramps length, height, degree, and the weight of the car.

Explanation:

Answer:

I think they need the slope of the ram(degree) .

& current gravitational acceleration

& the length of the ram and also l don't think mass of the cars are not needed becoz the acceleration of the cars are given by its,

Gravitational acceleration * sin( slope).

So then use that in v^2=u^2+2as equation.

s for length

a for acceleration

v for end velocity

u for start velocity

Nuclear energy is is used practically for many energy requirements because the reactions are controlled to regulate energy output

Nuclear energy is the energy reaelesed during nuclear relations.

Nuclear energy is a clean form of energy which is available in enormous amounts.

Nuclear energy is is used practically for many energy requirements because the reactions are controlled to regulate energy output.

Therefore, the control of nuclear reactions make the use if nuclear energy possible.

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Answer: A or the reactions are controlled to regulate energy output.

Explanation: did it on edge!

If the series circuit that powers your holiday lights were to be severed in the middle. The lights would all stop functioning. Only one light would stop working if the lights were linked in parallel circuit.

A series circuit is a straightforward circuit that enables electrons to go between one or more resistors. A resistor is anything that drains energy from a cell (battery). The resistor in a series circuit is typically a lightbulb. A series circuit is one in which the entire current flows through each element. A series circuit is a straightforward circuit that enables electrons to go between one or more resistors.

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Answer:

0.5A as in a series circuit the current is the same everywhere

Explanation:

Answer:

i do not know can i get brainliest im broke

Explanation:

Answer: The angle of incidence equals the ray of reflection. So this law states that any ray of light that strikes an object will reflect off the object such that the striking or incident angle is identical to the reflecting angle (as measured from the normal).

Explanation:

The speed of the projectile (launched horizontally from a height H) in terms of X, H, and g is given by: v = √(gX)

Let's solve the problem step by step:

Distance traveled horizontally (X)

Height of launch (H)

Acceleration due to gravity (g)

Step 1: Finding time of flight

Since the projectile is launched horizontally, there is no acceleration in the horizontal direction. Therefore, the time taken to travel the distance X horizontally is given by:

X = v * t

Solving for time (t):

t = X / v

Step 2: Finding vertical velocity at impact

Considering the vertical motion of the projectile, we can use the equation of motion to determine the final vertical velocity at impact:

v = u + gt

where:

v = final vertical velocity (which is equal to the speed of the projectile at impact)

u = initial vertical velocity (which is 0, as the projectile is launched horizontally)

g = acceleration due to gravity

t = time of flight (which we found in Step 1)

Substituting the values:

v = 0 + g * (X / v)

Step 3: Solving for speed (v)

To find the speed of the projectile, we can rearrange the equation:

v² = gX

Taking the square root of both sides:

v = √(gX)

This equation relates the speed of the projectile to the distance traveled horizontally (X) and the acceleration due to gravity (g). The height of launch (H) is not directly involved in this expression for speed.

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Answer:

Joules, Kilogram Meters²/Seconds², and Kilojoules

Explanation:

The force F exerted by an electric field on a test charge q is given by:

From this equation we notice that if we change the test charge then the force will change as well.

Therefore, the forces on the charges will not be the same.

We can't determine the electric field without further information on the problem; we need the force on one of the test charges to determine the magnitude of the field.

Answer:

the horizontal axis is called the x axis.

Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

Answer:

Potential energy = 1.6 J

Work done = -1.6 J

Explanation:

Potential Energy in the spring at this extension?

The potential energy U in the spring is U = 1/2kx² where k = spring constant = F/x where F = force = 20 N and x = extension = 0.16 m. So k = 20 N/0.16 m = 125 N/m

U = 1/2kx²

= 1/2 × 125 N/m × (0.16 m)²

= 1.6 J

What is the work done to extend the spring. 16 meters

Work done W = U₁ - U₂ where U₁ = initial potential energy = 0 and U₂ = final potential energy = 1.6 J

W = 0 - 1.6 J

   = -1.6 J

Answer:

The property of the wave marked X is related to the source of the wave

Explanation:

The source of of origin of waves

Electromagnetic wave are waves that consists of varying electric and magnetic field that vibrate perpendicular to each other and to the direction of propagation of the wave and they are therefore transverse waves and transfer energy

Electromagnetic waves originate from the vibration of charged particles that gives off varying electric and magnetic fields

Mechanical waves are defined as waves that require a material medium such as air, water, metal, plastic, stretched leather, or wood to propagate

Mechanical waves originate from vibration of the particles of a medium

Sound waves which is a form of longitudinal mechanical waves that propagates by the vibration of the particles of a given medium about a point parallel to the direction of propagation of the wave.

Answer:

Explanation:

Given:

Mass of bicyclist = 50 kg

Mass of bicycle = 10 kg

Initial velocity (u) = 5 m/s

Final velocity (v) = 10 m/s

Find:

(a) What was the total kinetic energy before accelerating = ?

(b) What was the total kinetic energy after accelerating = ?

(c) How much work was done to increase the kinetic energy of the bicyclist = ?

Computation:

Total mass (M) = 50 kg + 10 kg = 60 kg

1. The total kinetic energy before accelerating = 1/2[Mu²]

The total kinetic energy before accelerating = 0.5[(60)(5)²]

The total kinetic energy before accelerating = 750 J

2. The total kinetic energy after accelerating = 1/2[Mv²]

The total kinetic energy after accelerating = 0.5[(60)(10)²]

The total kinetic energy after accelerating = 3,000 J

3. Total work done = Δ K.E

Total work done = 3,000 J - 750 J

Total work done = 2,250 J

The kind of star that has an absolute magnitude of 10 and a surface temperature of 20,000 K is c. white dwarf.

A white dwarf is a star that has a low mass that has exhausted all of its nuclear fuel, as well as the ability to generate energy. The stars’ internal gravity pulls the matter of the star together, and they collapse under their own weight. White dwarfs are generally made up of electron-degenerate matter, which is a material made up of tightly packed, positively charged atomic nuclei and negatively charged electrons. The energy of the electrons compresses the nuclei, creating the high density that is required for the star to survive

Stars are classified according to their temperature, size, and luminosity, which are referred to as spectral types. According to their size, stars are divided into four groups: main-sequence, giant, supergiant, and dwarf. A white dwarf is a star that has a low mass and a size comparable to that of Earth.What is absolute magnitude?Absolute magnitude is defined as the brightness of a star when it is measured from a distance of ten parsecs. A parsec is equal to 3.26 light-years. It is critical to remember that absolute magnitude is a measure of a star's intrinsic brightness rather than how bright it appears from Earth.

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Answer:

conduction

Explanation:

Answer:

Radiation

Explanation:

Conduction: movement of something such as heat or electricity through a medium

Convection: movement in a gas or liquid in which the warmer parts move up and the cooler parts move down

Radiation: emission or transmission of energy in the form of waves or particles through space or through a material

Answer:

d = 100.56 m

Explanation:

It is given that,

Force acting on the dog is 22.4 N

Angle at which the force is applied is 115 º

Work done is - 42.3 J

We need to find the distance covered by the dog. The work done by an object is given by :

\(W=Fd\cos\theta\)

d = distance covered by the dog

\(d=\dfrac{W}{\cos\theta}\\\\d=\dfrac{-42.5}{\cos(115)}\\\\d=100.56\ m\)

So, the dog moves a distance of 100.56 m.

Answer:

4.47 M.

Explanation:

I do Acellus and just got it correct!

Answer:

Explanation:

In this case, gravity is pulling down on them ( both teams ), the strong - arm team is excerting thrust by trying to pull the rope, and you've got the drag of the other team pulling back.

The speed of the particle at t=2.0s is 0 m/s.

The particle velocity is a function of time and can change as time changes, but the wave velocity is independent of time and is thought to remain constant for a certain medium. Only when the properties of the medium through which a wave travels can the wave velocity be altered.

F = (10 N)sin(2πt/4.0s)

At t=2.0s, the force is:

F = (10 N)sin(2π(2.0)/4.0) = 0 N

Therefore, the acceleration of the particle at t=2.0s is:

a = F/m = 0/0.43 = 0 m/s^2

Step 2: Find the velocity of the particle at t=2.0s.

Since the acceleration is zero, the particle is moving with a constant velocity. We can use the following equation to find the velocity:

v = u + at

u=0.

v = u + at = 0 + 0(2.0) = 0 m/s

Therefore, the speed of the particle at t=2.0s is 0 m/s or simply put, it has no speed or is at rest.

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Answer:

BETTER EXPLANATION

Explanation:

When you drink from a straw, you create a little space of low pressure inside your mouth and in the top of the straw. Then the air outside the straw pushes down on the surface of the drink and forces the liquid up through the straw and into your mouth.

The speed of the block at point B is √(6Rg) and the force by the track on the block is 6mg.

The mass of the block is m.

The point A is at a height of 4R and point B is at a height of R.

(a) According to law of conservation of energy, the energy in gravitational field always remains same at every point.

Potential energy at A + Kinetic energy at A = Potential energy at B + Kinetic energy at B

Potential energy at A is mh4R.

Kinetic energy at A is zero.

Potential energy at B is mgR.

Kinetic energy at A is 1/2mv²

Putting all the values,

mh4R = 1/2mv² + mgR

mg3R = 1/2mv²

v = √(6Rg)

So, the speed of the block at point B is √(6Rg).

(b) The force F of the track on the block is,

F = mv²/r

v is speed at point B.

r is the radius of the track.

Putting values,

F = 6mg.

The force by the track on the block is mg.

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While the flashlight light has no effect, the UV source's light discharges the electroscope.

According to Planck's formula, the energy of the particles that make up a beam of light is connected to their frequencies. The photons and atoms collide when that beam strikes a metal. The photoelectric effect is created by a collision when a photon's frequency is high enough to remove an electron.

One electron interacts with each photon. The incident photon's energy is employed to both liberate the surface-bound electrons and give the expelled electrons energy.

Because it offers insights into the properties of solids as well as the properties of atoms and molecules, the photoelectric effect is extensively researched in the fields of quantum chemistry, condensed matter physics, and solid-state chemistry.

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Answer:

The net force acting on the car is

3

×

10

3

Newtons.

Hope this helps you

Explanation:

Force is defined as the product of the mass of the body and its aaceleration,

⇒

F

=

m

a

Substituting the above given values we get,

F

=

(

1500

k

g

)

(

2.0

m

/

s

2

)

=

3000

N

=

3

×

10

3

N

.

Answer:

The car moving at velocity 15 m/s will take 2.67 s to travel 40 m.

What do you mean by velocity?

An object's velocity can be defined as the rate of change in the object's position with respect to a frame of reference and time.

A rocket launching into space and a car going north on a busy freeway may both be quantified using velocity.

Explanation:

Velocity of the car = 15 m/s

Distance = 40 m

Therefore, time taken to travel 40 m at a velocity of 15 m/s

= 40/15 = 2.666 ≈ 2.67 s

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