if a water polo ball dropped from 40ft on planet euler takes 2 seconds to hit the ground, what is the gravity there

If an individual who claims to see ghosts everywhere is put into an fmri and asked to observe ghosts in the room, the fMRI scan would show activation in specific brain regions that are associated with visual processing and perception.

The fMRI would detect increased activity in the visual cortex, which is responsible for processing visual information.The brain region called the temporal lobes is also involved in visual processing and perception, and activation in this area could be associated with the perception of ghosts. Furthermore, activity in the amygdala, which is involved in processing emotions and fear, may also be detected if the individual is experiencing fear or anxiety related to seeing ghosts.In conclusion, an fMRI scan of an individual who claims to see ghosts everywhere would show increased activation in brain regions associated with visual processing, perception, and emotional processing.

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Answer:

Reduce friction

Answer:

45.31 J

Explanation:

We are given that

Mass of baseball , m=0.145 kg

Initial velocity, u=0

Final velocity, v=25 m/s

We have to find the work done on the baseball to bring it from rest to 25 m/s

We know that

Work done = Change in kinetic energy

Work done, W=\(\frac{1}{2}m(v^2-u^2)\)

Using the formula

Work done, W\(=\frac{1}{2}(0.145)((25)^2-0)\)

Work done=\(\frac{1}{2}(0.145)(625)\)

Work done, W=45.31 J

Hence, the work done on the baseball to bring it from rest to 25 m/s

=45.31 J

According to Biot-Savart Law, the magnetic force exerted by a current-carrying wire on a second wire is proportional to the product of the two currents and inversely proportional to the distance between the wires.

Thus, if the currents in the wires were doubled, the magnetic force between them would be quadrupled, and the lower wire would be in static equilibrium at a distance of one-half from the wire above.What is Static Equilibrium?Static equilibrium is a state of rest in which there are no forces acting on an object. If an object is at rest, it will continue to remain at rest. Similarly, if it is moving, it will continue to move with the same velocity until and unless there is a force acting on it. Thus, an object that is in static equilibrium will remain at rest until a force acts on it.

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There are roughly \(10^{26\) photons in a beam of light with an energy of 100 J and a wavelength of 300 nm.

To calculate the approximate number of photons in a beam of light, we can use the equation relating energy (E) to the frequency (f) or wavelength (λ) of a photon:

E = hf = hc/λ

Where:

Given the energy of the beam of light (Ebeam = 100 J) and the wavelength (λ = 300 nm = 300 x \(10^{-9\) m), we can rearrange the equation to solve for the number of photons (N):

N = Ebeam / E

Let's calculate the number of photons using the given values:

E = hc / λ

 ≈ (\(10^{-33\) J.s) * (3 x \(10^8\) m/s) / (300 x \(10^{-9\) m)

≈ \(10^{-33\) J.s * \(10^9\) / 3

≈ \(10^{-24\) J

N = Ebeam / E

   = 100 J /  \(10^{-24\) J

  ≈ \(10^{26\) photons

Therefore, there are roughly \(10^{26\) photons in a beam of light with an energy of 100 J and a wavelength of 300 nm.

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Tto determine the spring constant of each spring, we need the amplitude of the motion. The given information about the frequency of the motion and the number of bounces per second is not enough to calculate the spring constant. Therefore, we cannot answer the question without more information about the amplitude of the motion.

To determine the spring constant of each spring, we can use the equation:

f = -kx

Where f is the force applied on the spring, k is the spring constant, and x is the displacement of the spring from its equilibrium position.

We know that the car bounces up and down 1.90 times each second, which means it completes 1.90 cycles per second. The frequency of the motion is given by:

f = 1/T

Where T is the period of the motion. The period is the time taken for one complete cycle of motion. Therefore, we can calculate the period as:

T = 1/1.90 = 0.5263 s

The displacement of the spring from its equilibrium position is the amplitude of the motion, which we don't know. Therefore, we cannot calculate the spring constant of each spring with the given information.

To calculate the spring constant of each spring, we can use the equation f = -kx, where f is the force applied on the spring, k is the spring constant, and x is the displacement of the spring from its equilibrium position. The frequency of the motion is given by f = 1/T, where T is the period of the motion. The car bounces up and down 1.90 times each second, which means it completes 1.90 cycles per second. Calculating the period as 0.5263 s, we still need the amplitude of the motion to determine the spring constant. Without this information, we cannot calculate the spring constant of each spring.

In conclusion, to determine the spring constant of each spring, we need the amplitude of the motion. The given information about the frequency of the motion and the number of bounces per second is not enough to calculate the spring constant. Therefore, we cannot answer the question without more information about the amplitude of the motion.

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To win a  driver negligence claim, the victim (plaintiff) must prove four things: OBLIGATIONS, BREACH OF DUTY, CAUSE OF INJURY AND DAMAGE.

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A clay liner and a system of pipes is used in a sanitary landfill to

a) Prevent leakage

What is sanitary landfill ?

Sanitary landfill refers to the efficient use of engineering techniques to confine waste to the smallest practical area in order to cover it with a layer of soil to reduce its volume and minimize pollution. It is a land-based method of disposal without harming the environment and public health. of air.

A landfill is a place where waste is isolated from the environment until it is safe. It is believed to be completely biologically, chemically and physically degraded. High-income countries may have higher levels of isolation achieved.

A safe landfill has critical elements: a bottom liner, a leachate collection system, a cover, and a natural hydrogeological environment. The natural environment can be chosen to minimize the potential for waste to enter the groundwater below the landfill.

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Answer:

Mechanical

Explanation:

Answer:

I believe it is A.

Explanation:

Birds need feathers to fly.

The greater impact force (in magnitude) acts on a) the car

Since , both the objects that is the car and a massive truck is coming and colliding with a certain speed , which means they are acquiring some momentum because of mass and speed , since they are coming with certain momentum when collided must have impacted each other.

Momentum is the measure of product of mass and velocity , if both of them are coming with same velocity then total dependency of impact will be on their masses  , since  truck is massive and car is small sports car , that means truck must have greater mass than the car , hence the greater impact force act on  a) the car

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Answer:

Greenhouse gases include carbon dioxide, methane, nitrous oxide and other gases that accumulate in the atmosphere and create the heat-reflective layer that keeps the Earth at a livable temperature. These gases form the insulation that keeps the planet warm enough to support life.

They are free electrons that can be used by any atom.

ok, i will try to explain this the best i can.

Okay, so we know that in the first shell there are 2 electrons. Only 2 electrons can fit into the first shell.

Then we have the second shell which can fit only 8 electrons.

Then, lets say we have a third shell. The third has one electron in the valence shell. The ion is "unhappy/unbalanced". We need to remove that electron to make the ion balance. So we need to remove that one electron and transfer it to another ion to make that ion "happy/balanced".

hope this helps you understand.

6.375 m is her acceleration uniform.

We apply the equations derived for rectilinear motion with constant acceleration to this issue. These are the equations:

a = (v - v₀)/t

x = v₀t + 0.5at²

where

Acceleration is a.

The ultimate and beginning velocities are v and v0, respectively.

The distance is x.

Time has come.

Let's first figure out the value of a to be inserted into the second equation:

4.411 m/s2 is equal to a = (7.5 m/s - 0 m/s)/1.7 s.

x = (0)(1.7s) + 0.5(4.411 m/s²) (1.7 s)

²

x = 6.375 m

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Increased collimation increased the potential for scatter radiation production of the following statements regarding the collimators is false.

When an x-ray beam hits a patient, scatter radiation is produced in the patient. The direction opposite to the x-ray beam produces the most scatter radiation. In other terms, if the x-ray unit is just above the patient, the patient's side will have the most background interference at a specific distance from the patient.

The molecules of the many gases that are present in air absorb light when it enters the earth's atmosphere. Then, light is reemitted from these atoms in all directions. This mechanism is referred to as light scattering.

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Answer:

See below

Explanation:

x component =  90 cos 45 = 63.6 N

y component =  90 sin 45  = 63.6 N

v ≈ 2.215 m/s, The maximum linear speed at which the penny can travel without slipping is given by the formula v = Rω, where R is the distance from the center of the turntable to the penny (0.10 m) and ω is the angular speed of the turntable.

The penny will start to slip when the centrifugal force (mRω^2) exceeds the force of static friction (μs mg), where m is the mass of the penny, g is the acceleration due to gravity, and μs is the coefficient of static friction (0.50).

Setting these two forces equal to each other and solving for ω, we get:

mRω^2 = μs mg
ω^2 = μs g / R
ω = sqrt(μs g / R)

Substituting the given values, we get:

ω = sqrt(0.50 x 9.81 / 0.10) = 3.13 rad/s

Finally, we can calculate the maximum linear speed using the formula v = Rω:

v = 0.10 x 3.13 = 0.313 m/s

Therefore, the answer is A) 0.49 m/s (the closest option to 0.313 m/s).
To find the maximum linear speed at which the penny can travel without slipping, we can use the formula for the centripetal force acting on the penny:

Fc = μ * m * g

where Fc is the centripetal force, μ is the coefficient of static friction, m is the mass of the penny, and g is the acceleration due to gravity (approximately 9.81 m/s²).

Since we want to find the linear speed (v), we can relate centripetal force to linear speed using the formula:

Fc = m * v² / r

where r is the distance from the center of the turntable (0.10 m).

Combining the two equations, we get:

μ * m * g = m * v² / r

We can simplify this equation by canceling out the mass (m):

μ * g = v² / r

Now, we can plug in the given values for the coefficient of static friction (μ = 0.50) and the distance from the center (r = 0.10 m):

0.50 * 9.81 = v² / 0.10

Solve for v:

v² = 0.50 * 9.81 * 0.10
v² = 4.905
v = √4.905
v ≈ 2.215 m/s

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Answer:

B. I looked it up I hope it's right

Explanation:

i hope this helps.

Answer:

its obviously C

Explanation:

i smart like dat

Answer:

I think 100V but I'm not sure.

Answer:

The efficiency of the constuction is 9.0

Explanation:

Answer:

Explanation:

KE =1/2mv²

KE =1/2(1000kg)(15m/s)²

KE = 500kg (225 m²/s²)

KE = 112,500 JJ

Answer:

Step-by-step explanation:

Given information

u=initial velocity=20m/s

s=distance travelled=40m

v=final velocity=0m/s (the car stopped after traveling 40 m)

To find  a = acceleration of the car

            and its direction

We know that the equation for uniform motion is

v^2=u^2+2as

therefore by rearranging we get

a= \((v^2 - u^2)/ 2s\)

putting the values we get

a= (0 - \(20^{2}\) )/ \(/ 2*40\)

a= -400/80

a=-5 \(m/s^2\)

here negative sign before 5 indicates that the acceleration direction was opposite the car's motion, hence stopping it eventually.

And the magnitude of the acceleration is 5\(m/s^2\)

Answer:

The acceleration due to gravity at Pluto is 0.0597 m/s^2.

Explanation:

Length, L = 1 m

10 oscillations in 257 seconds

Time period, T = 257/10 = 25.7 s

Let the acceleration due to gravity is g.

Use the formula of time period of simple pendulum

\(T = 2\pi\sqrt{\frac{L}{g}}\\\\25.7 = 2 \times 31.4\sqrt{\frac{1}{g}}\\\\g = 0.0597 m/s^2\)

Answer:

\(v_x=34 m/s\)

\(v_y=53.9\ m/s\)

Explanation:

Horizontal Launch

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled by gravity until it eventually hits the ground.

The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:

vx=v

The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:

\(v_y=g.t\)

The horizontal component of the velocity is always the same:

\(v_x=34 m/s\)

The vertical component at t=5.5 s is:

\(v_y=9.8*5.5=53.9\)

\(v_y=53.9\ m/s\)

Answer:

B.) Programming and Software

Explanation:

Answer on Edge

Answer:

its B

Explanation:

Typically, a travelling wave and its reflection are used to do this, guaranteeing that the frequency will always be the same.

High-frequency sound waves are used in ultrasonic cleaning to scour clean the surface of submerged objects while travelling through liquid. The liquid solution of water or solvent is stirred up by the high-frequency sound waves, which typically have a frequency of 40 kHz. This causes the molecules in the solution to cavitate. A sound wave is a vibration that travels through a medium, like metals, water, or air.The term "ultrasonic wave" refers to a wave with a frequency that is "inaudible to humans" and typically surpasses 20 kHz.

When the cleaner is turned on without any water in the tank, the transducer burns out almost instantly, leaving you with a piece of equipment that is now entirely useless. Prior to connecting it to electricity, make sure your cleaner is full to the recommended level. Use of any flammable liquid in an ultrasonic bath is strictly prohibited.

Therefore the correct answer is reflectors .

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Given that a particle moves along the x-axis so that its acceleration at any time t0 is given by a(t) = 12t - 4, At time t = 1, the velocity of the particle is v(1) = 7, and its position is x(1) = 4.

To find the velocity and position of the particle, we need to integrate the acceleration, a(t), and then solve the resulting equations for the constants of integration.

To solve for C, we use the fact that v(1) = 7:v(1) = 6(1)^2 - 4(1) + Cv(1)

= 2 + C

Thus, C is 5. Now, we can write the velocity of the particle as:

v(t) = 6t^2 - 4t + 5

To find the position of the particle, we integrate the velocity.

v(t) = dx(t)/dt ⇒ dx(t)

= v(t)dt∫dx(t)

= ∫v(t)dtx(t)

= ∫(6t^2 - 4t + 5)dt

X(t) = 2t^3 - 2t^2 + 5t + K

where K is the constant of integration. To solve for K, we use the fact that

x(1) = 4:X(1)

= 2(1)^3 - 2(1)^2 + 5(1) + KX(1)

= 5 + K

Thus, K = -1.

Now, we can write the position of the particle as:

X(t) = 2t^3 - 2t^2 + 5t - 1

Hence, the velocity of the particle is v(t) = 6t2 - 4t + 5, and the position of the particle is X(t) = 2t3 - 2t2 + 5t - 1.

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Explanation:

w = (4.52 ± 0.02) cm, x = ( 2.0 ± 0.2) cm, y = (3.0 ± 0.6) cm. Find z = x + y - w and its uncertainty.

z = x + y - w = 2.0 + 3.0 - 4.5 = 0.5 cm

Dz = Dx + Dy + Dw = 0.2 + 0.6 + 0.02 = 0.82 rounding to 0.8 cm

So z = (0.5 ± 0.8) cm

Solution with standard deviations, Eq. 1b, Dz = 0.633 cm

z = (0.5 ± 0.6) cm

Notice that we round the uncertainty to one significant figure and round the answer to match.

Answer: 0.01143 m/s

Explanation:

use conservation of momentum, since momentum is always conserved. assume left of = is initial, to the right if final

m1v1=m1v1 + m2v2

(40)(20)=(40)(5) + (350)(v2)

solve for v2 (denoting velocity of bear)

yes, the bear will be moving, at a speed of 0.011428571 (round how you like)