A drinking fountain shoots water about 12 cm up in the air from a nozzle of diameter 0.60 cm . The pump at the base of the unit (1.1 m below the nozzle) pushes water into a 1.2-cm-diameter supply pipe that goes up to the nozzle. What gauge pressure does the pump have to provide?

The rider is moving at a speed of 12.2 meters per second when she experiences 10 g's.

The speed at which a rider experiences 10 g's (10 times the acceleration due to gravity) on a centrifuge can be calculated using the formula:

speed = (g * r)

Where g is the acceleration due to gravity (9.8 m/s^2) and r is the radius of the centrifuge arm (in this case, 15.0 m).

Plugging in the numbers, we get:

speed = (9.8 * 15.0) = (146) = 12.2 m/s

It's important to note that high g-forces can have serious health effects, and centrifuges are often used to simulate conditions experienced by pilots, astronauts, and other people who are subjected to high g-forces.

The g-forces experienced on a centrifuge can be used to determine the limits of human tolerance and to develop measures to protect people from the harmful effects of high g-forces.

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A start capacitor is designed to provide a burst of energy to start the motor, while a run capacitor is used to maintain the motor's running power. Run capacitors are usually larger and have a lower capacitance rating than start capacitors. To determine which capacitor is which, check the wiring diagram of the motor or appliance or consult the manufacturer's documentation.

To tell the difference between a start capacitor and a run capacitor, consider the following factors:
1. Function:
- Start Capacitor: Provides an initial boost of power to start the motor.
- Run Capacitor: Helps the motor maintain a consistent voltage and torque while running.
2. Time of operation:
- Start Capacitor: Operates only during the motor's startup phase.
- Run Capacitor: Operates continuously during the motor's operation.
3. Construction:
- Start Capacitor: Generally has a higher capacitance value (usually above 70 μF) and a lower voltage rating.
- Run Capacitor: Has a lower capacitance value (usually between 1 to 70 μF) and a higher voltage rating.
4. Appearance:
- Start Capacitor: Usually cylindrical, black, and larger than a run capacitor.
- Run Capacitor: Typically cylindrical, silver, and smaller than a start capacitor.
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Assuming that the two point charges are of equal magnitude and opposite sign, the electric field will be zero at a point on the x-axis that is equidistant from the two charges. This point is known as the midpoint between the two charges.

To see why this is the case, consider the electric field produced by each individual charge. Each charge produces an electric field that points away from it and decreases in strength with distance. At a point on the x-axis that is closer to one charge than the other, the electric field produced by the closer charge will be stronger than the electric field produced by the farther charge. This will result in a net electric field that points away from the closer charge and toward the farther charge.

However, at the midpoint between the two charges, the distances to the two charges are equal, and so the electric fields produced by the two charges will be equal in magnitude and opposite in direction. These two electric fields will cancel each other out, resulting in a net electric field of zero at this point.

It's worth noting that if the two point charges are not of equal magnitude and opposite sign, or if they are arranged in a different configuration, the point(s) at which the electric field is zero may be different.

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The graph that corresponds to 0.1 s in one complete cycle is graph D.

option D is the correct answer.

The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years.

Also, the period of a wave is the amount of time it takes for a wave to complete one wave cycle or wavelength.

From the given parameter, the coil rotates 10 times in one second. The period of the coil is calculated as;

Period = 1 s / 10

Period = 0.1 s

From the graphs, the only option that has one complete cycle in one second is option D.

Check option D, half cycle is 0.05 s and one full cycle is 0.1 s.

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A spring of force constant 120 N/m acted up by a constant force of 240N. Then, the elastic potential energy stored in the spring is 240 Nm.

The elastic potential energy stored in the spring is formulated as follows

                                                 PE = ½kx²

Where PE is the elastic potential energy, x is the displacement of the spring from its equilibrium position, and k is the spring force constant.

In this question, the spring force constant is 120 N/m, and the constant force acting on the spring is 240 N. To find the spring displacement, we can use the formula:

F = kx

Where F is the force acting on the spring, x is the displacement, and k is the force constant,

So that:

F = kx

240 N = 120 N/m . x

x = 240 N/120 N/m

x = 2 m

Once x is known, then we can calculate the potential energy of the spring:

PE = ½kx²

PE = ½ (120) (2²)

PE = 60 x 40

PE = 240 Nm

So, the elastic potential energy stored in the spring is 240 Nm.

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An ac source with δvmax = 52.6 v and f = 76.0 hz when connected across a 3.70-µf capacitort the maximum current delivered by the AC source across the 3.70 µF capacitor is approximately 7.931 Amperes.

To calculate the maximum current delivered by an AC source connected across a capacitor, we can use the formula

Imax = δvmax * 2πf * C

where:

   Imax is the maximum current

   δvmax is the peak voltage (in volts)

   f is the frequency (in hertz)

   C is the capacitance (in farads)

Let's plug in the given values:

δvmax = 52.6 V

f = 76.0 Hz

C = 3.70 µF = 3.70 × 10^(-6) F

Imax = (52.6 V) * (2π * 76.0 Hz) * (3.70 × 10^(-6) F)

Imax = (52.6 V) * (2 * 3.14159 * 76.0 Hz) * (3.70 × 10^(-6) F)

Imax = (52.6 V) * (150.796 * 10^(-3) F)

Imax = 7.931 A

Therefore, the maximum current delivered by the AC source across the 3.70 µF capacitor is approximately 7.931 Amperes.

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The image height on the detector will change by a factor of 2 if you change from a 50-mm-focal-length lens to a 100-mm-focal-length lens and refocus.

The magnification of a lens is given by the ratio of the image height to the object height. Since the object height remains the same, the change in magnification is solely determined by the change in focal length.

The magnification of a lens is given by the formula:

Magnification = - (image distance / object distance).

Since we are only interested in the ratio of image heights, we can ignore the negative sign.

For the 50-mm lens, the magnification is:

Magnification1 = 50 mm / object distance.

For the 100-mm lens, the magnification is:

Magnification2 = 100 mm / object distance.

Taking the ratio of the two magnifications:

Magnification2 / Magnification1 = (100 mm / object distance) / (50 mm / object distance) = 100 mm / 50 mm = 2.

Therefore, the image height on the detector changes by a factor of 2 when switching from a 50-mm-focal-length lens to a 100-mm-focal-length lens and refocusing.

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Temperatures in the thermosphere are not strictly comparable to those experienced near Earth's surface because the gases of the thermosphere are moving at very high speeds, and the temperature is very high.

The thermosphere lies among the exosphere and the mesosphere. “Thermo” way warmness and the temperature in this layer can reach as much as 4,500 tiers Fahrenheit. in case you have been to hang around inside the thermosphere, though, you'll be very cold because there are not sufficient fuel molecules to transfer the warmth to you.

The thermosphere is the outer layer of the Earth's surroundings, extending from about 53 miles to greater than 370 miles above the surface. The temperature increases rapidly in this layer due to the absorption of huge quantities of incoming excessive electricity sun radiation by using atoms of nitrogen and oxygen.

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Answer:

You should tell her in a nice way that that's just not your style and if she doesnt accept that then maybe you should just not talk to her for a while and let her cool down

Explanation:

Hope this helps

Answer:Most physics and biomechanics studies of a golf swing are concerned with the motion of a ... The top surface of the concrete was much smoother than the ball, ... The ball will then roll like a coin on its edge or like a ball used in lawn bowls. ... centre of the club head then the force of the ball pushing against the face

Explanation:

Answers:

20m/s/s

Explanation:

we know,

a = v-u/t

= 30- 0/1.5

= 20m/s/s

Strong x-ray beams can be produced when cathode rays strike a metal anode.

This process is known as the production of bremsstrahlung radiation. When high-speed electrons, also called cathode rays, are accelerated and then collide with a metal target, they are abruptly decelerated, and the kinetic energy lost is converted into X-ray photons.

The resulting X-ray beam produced can be strong and intense, and its properties depend on the energy of the incident electrons and the material of the target.

Gamma rays moving through a magnetic field, alpha rays passing through a thin metal foil, or beta rays being absorbed by bones do not directly produce strong X-ray beams.

In summary, the correct answer is A) cathode rays striking a metal anode can produce strong X-ray beams.

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Answer:

its true

Explanation:

ape x

Answer:

Eris

Explanation:

The object, temporarily designated 2003UB313 and later named Eris, orbits the sun about once every 560 years, its distance varying from about 38 to 98 AU.

Answer:

me

Explanation:

Answer:

imma have to come back to you on that one

Answer:

The Sun is at the center of the solar system and the planets move around it.

Explanation:pluto/edmentum

The ball that is projected 125 meters straight upward has a total time in the air of: 10.1 s

The formulas for the vertical launch upward and the procedures we will use are:

Where:

Information about the problem:

Applying the maximum height formula and clearing the initial velocity we get:

y max = v₀²/(2*g)

v₀ = √(y max * (2*g))

v₀ = √( 125 m * (2 * 9.8 m/s²))

v₀ = √( 125 m * 19.6 m/s²)

v₀ = √2450 m²/s²

v₀ = 49.497 m/s

Applying the maximum time formula we get:

t max= v₀ / g

t max= 49.497 m/s / 9.8 m/s²

t max = 5.050 s

Applying  the time of flight formula, we get:

t(of) =2 * t max

t(of) =2 * 5.050 s

t(of) = 10.1 s

In physics vertical launch upwards is the motion described by an object that has been launched vertically upwards in which the height and the effect of the earth's gravitational force on the launched object are taken into account.

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The time spent in the air by the ball is 10.01 seconds.

The total time spent in the air by the ball is the sum of the time it spends moving up and the time it spends falling down.

The time spent by the ball moving up - time spent by the ball travelling down.

Time spent by the ball traveling down a distance of 125 meters is calculated using the formula given as follows:

t = √2h/g

Total time spent = 2 * √2h/g

where:

h = 125 m

g = 9.81 m/s²

T = 2 * √(2 * 125/9.81)

T = 10.01 s

Therefore, the time spent in the air by the ball is the sum of the time spent moving up and the time it spends falling down which are both equal.

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The work done on the cart by the spring is equal to the change in kinetic energy of the cart. This agrees with our prediction.

The work done on the cart by the spring can be calculated by multiplying the force applied by the spring with the distance the cart moves. This work is stored as potential energy in the spring. When the cart is released, this potential energy is converted into kinetic energy. Therefore, the work done on the cart by the spring is equal to the change in kinetic energy of the cart. This agrees with our prediction.

However, in real-life scenarios, there are always some energy losses due to friction. Frictional forces can cause a decrease in the mechanical energy of the system. This decrease in mechanical energy is called the energy loss due to friction. The amount of energy loss due to friction depends on various factors such as the surface characteristics of the cart and the track, the force applied, and the speed of the cart.

To determine the exact amount of energy loss due to friction, we need to conduct experiments and measure the mechanical energy of the system before and after the cart has been released. By comparing these values, we can calculate the energy loss due to friction.

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Answer:

D!!!!!

Explanation:

A hypothesis is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Answer:

D. An educated guess about the outcome of an experiment.

Explanation:

Hypothesis is an educated guess about the outcome of an experiment.

Hope this helps ;) ❤❤❤

Answer: power, renewable, extinct, solar, wind

Would appreciate brainliest <3

Answer:

chemical

mechanical

electrical

nuclear

thermal

brainliest ?

( True ) Pluto is the farthest planet from the sun in our solar system. Its average distance from the sun is about 3.7 billion miles. Due to this vast distance, the intensity of sunlight reaching Pluto is significantly weaker than on Earth. From Pluto's perspective, the sun appears as a very bright star in the sky, rather than a massive glowing ball.

The sun's apparent magnitude, which is a measure of its brightness as seen from Earth, is about -26.7. However, when viewed from Pluto, the sun's apparent magnitude drops to about -19.5, which is more than a thousand times fainter. This is because the intensity of sunlight decreases with distance, following the inverse-square law. Therefore, the sun would appear much dimmer to an observer on Pluto than on Earth.

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By considering the relationship between impulse and momentum, we can show that the average force exerted by the seat belt on the dummy is 18,750 N.

The law state that the rate of change of momentum is directly proportional the force applied.

Given that a car carrying a 75-kg test dummy crashes into a wall at 25 m/s and is brought to rest in 0.1 s. The impulse of the car will be equal to its momentum. That is,

Ft = mv

Where

Substitute all the parameters into the equation given above.

0.1 F = 75 × 25

0.1F = 1875

F = 1875/0.1

F = 18750 N

Therefore, It is shown that the average force exerted by the seat belt on the dummy is 18,750 N.

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Answer:

Yes, the carters are always facing the Earth as the moon orbits.

Explanation:

The optimum ue for this mission is u_e_opt = u_e ln(m0/mu)/(1 - αP/m0).

The rocket equation in the case where the mass delivered by a rocket, mf​, is separated into useful payload mu​ and the power-producing system mass mp​ = αP, takes the form

m0mu​ = e−Δvue−2ηΔtαue2​(1−e−Δvue​),

Where Δt is the thrusting time, and η is the conversion efficiency.

This information is given in the question.

The optimum ue for this mission is the one that maximizes the payload mass mu for a given launch mass m0.

The rocket equation gives the relation between the initial mass of the rocket m0 and the final mass mf and the velocity change Δv it produces.

The rocket equation can be written as follows:

m0mf​ = e−Δvue​,

Where Δv = ue ln(m0/mf)

The mass of the rocket that is consumed in a given time interval Δt is given by mp = αP Δt

The mass of the useful payload is given by

mu = mf - mp

Substituting for mf and mp, we get

mu = (1 - αP/m0)mf

Substituting the above equation in the rocket equation, we get

m0(1 - αP/m0)mf = e^(-Δv/ue)

mf = m0 e^(-Δv/ue)/(1 - αP/m0)

Substituting for mf, we get

mu = (1 - αP/m0) m0 e^(-Δv/ue)/(1 - αP/m0)

mu = m0 e^(-Δv/ue)

Multiplying both sides of the equation by m0/mu, we get

m0/mu = m0 e^(Δv/ue)

Taking the natural logarithm of both sides of the equation, we get ln(m0/mu) = Δv/ue

ue = Δv/ln(m0/mu)

Substituting the value of Δv from the rocket equation, we get

ue = u_e_opt

    = u_e ln(m0/mu)/(1 - αP/m0)

Therefore, the optimum ue for this mission is u_e_opt = u_e ln(m0/mu)/(1 - αP/m0).

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Answer:

   Gravitational potential energy.

   Chemical energy.

   Nuclear energy.

   Elastic potential energy

   Electrical potential energy

    Hope this helps :)

The total distance you would have covered is equivalent to going around the earth 22 times.

The total distance traveled at a given speed and time of motion is calculated as follows;

Distance = speed x time

\(Distance = \frac{25 \ miles}{day} \times \frac{365 \ days}{1 \ year} \times 60 \ years\\\\Distance = 547, 500 \ miles\)

The distance round the earth or circumference of the earth of the earth has been given as 25,000 miles

\(n = \frac{547,500}{25,000} \\\\ n = 21.9 \ times \ \approx 22 \ times\)

Thus, the total distance you would have covered is equivalent to going around the earth 22 times.

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Answer:

Three laws

Explanation:

Three laws of motion that Newtown developed.

Answer:

A flower emits only visible light

A flower reflects much of the light that hits it

Answer: Within the visible range of light, red light waves are scattered the least by atmospheric gas molecules. So at sunrise and sunset, when the sunlight travels a long path through the atmosphere to reach our eyes, the blue light has been mostly removed, leaving mostly red and yellow light remaining.

Explanation: