A fairgrounds ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follow has a 9.00 m radius, at how many revolutions per minute will the riders be subjected to a centripetal acceleration whose magnitude is 2.00 times that due to gravity

By (a) extending the object's travel distance, an inclined plane decreases the force required to move the object.

At this point, describing a force as a push or a pull is perfectly acceptable. There is no such thing as a force that an object "has in it" or "contains." A force is applied to one thing by another. The idea of a force encompasses both living and non-living things.  A force has the ability to alter or increase the velocity of a massed object. A simple way to express force is with a push or a pull.. The fact that a force has both a magnitude and a direction makes it a vector quantity.

Contact forces and remote action There are two distinct kind of forces. Your consistent use of force is obvious. Push and pull are basically forces. When you push or pull against an object, you apply force to it.

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Explanation:

The SI was established in 1960 by the 11th General Conference on Weights and Measures (CGPM, Conférence Générale des Poids et Mesures). The CGPM is the international authority that ensures wide dissemination of the SI and modifies the SI as necessary to reflect the latest advances in science and technology.

Answer:A

Explanation

B a compound can ha e the same properties as it’s elements

C water is H2O- Hydrogen and oxygen

D water is the most common compound

Therefore A must be correct

Answer:

D

Explanation:

study island. first answer is wrong

The average daily number of sunspots will increase throughout 1945. therefore the correct answer is option D.

It is a system in which the sun's gravitational attraction causes all the planets and celestial bodies to revolve around it.

As specified in the issue statement On the surface of the Sun are spots known as sunspots. Increased sunspots imply that the Sun is more active and is producing more energy since they are a sign of strong magnetic fields.

The average daily number of sunspots from 1900 to 1944 is shown in the graph below. The average for each data point is for one month.

The graph's sequence of peaks and valleys should be noted. A solar cycle is the period of time from one minimum (trough) to the next. Solar cycles can last from nine to fourteen years.

Thus, The average daily number of sunspots will increase throughout 1945, therefore the correct answer is option D.

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The frequency of that sound will be increased and wavelength of that sound decreases when the car drives rapidly toward the person.

The term "Doppler Effect" describes the shift in wave frequency that occurs when a wave source and its observer move in relation to one another. Christian Johann Doppler made the discovery and defined it as the process of rising or falling starlight depending on the relative motion of the star.

The observer's velocity is 0 in this situation. The equation for the Doppler effect when a source is moving in the direction of an observer who is at rest is as follows:

f₁ ={ v/(v - u)}f

Where f is frequency of sound and v and u be velocity of sound and  car respectively and f₁ is frequency appeared to the observer.

So,  The frequency of that sound will be increased.

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The change that should arise at the time when an atom undergoes alpha decay is that nucleus loses mass and a new element is produced.

It is the type of radioactive decay where the atomic nucleus should be emitted an alpha particle and due to which it transforms and it should be distinct atomic nucleus.

Therefore we can say that The change that should arise at the time when an atom undergoes alpha decay is that nucleus loses mass and a new element is produced.

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Answer:

One of the more important properties of sound is that its speed is nearly independent of frequency. ... Therefore, the relationship between f and λ is inverse: The higher the frequency, the shorter the wavelength of a sound wave. The speed of sound can change when sound travels from one medium to another.

the separation between the two cars when you look back is 77.02 m.

To solve this problem, we can break it down into two parts: the initial motion of the cars and the motion during the 2.0 s diversion.

1. Initial motion:

Both cars are traveling at the same speed of 110 km/h, which can be converted to meters per second (m/s):

110 km/h = (110 * 1000) / 3600 = 30.56 m/s

During this time, the separation between the two cars remains constant at 26 m.

2. Motion during the 2.0 s diversion:

The police car begins braking suddenly at 5.05 m/s^2. We need to find the distance traveled by both cars during this time.

For the police car:

Using the equation of motion:

d = v₀t + (1/2)at²

where d is the distance, v₀ is the initial velocity, t is the time, and a is the acceleration.

d = 0 * 2.0 + (1/2) * (-5.05) * (2.0)^2

d = -10.1 m

For your car:

Since you are distracted and not braking, your car continues moving at a constant speed.

The distance traveled is given by:

d = vt

d = 30.56 * 2.0

d = 61.12 m

Now we can calculate the total separation between the two cars after the 2.0 s diversion:

Separation = Initial separation + Distance traveled during diversion

Separation = 26 + (-10.1) + 61.12

Separation = 77.02 m

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When a magnet is moved in and out of a coil of wire, a voltage is induced in the coil according to Faraday's law. The induced voltage depends on the rate of change of magnetic flux through the coil. If the rate of the in-and-out motion is doubled, the induced voltage is also doubled. This can be expressed by the equation:

where E is the induced voltage, N is the number of turns in the coil, Φ is the magnetic flux, and t is the time.

A wire coil of cross-sectional area 0.020 m^2 rotates in a magnetic field of 1.5 T. It travels 90 degrees from an orientation with its normal aligned with the field to an orientation with its normal perpendicular to the field in 2.00 ms. The emf induced in the coil is:

where A is the area of the coil, B is the magnetic field strength, θ is the angle between the normal and the field, and dθ/dt is the angular velocity.

Substituting the given values, we get:

where N is the number of turns in the coil.

The possible choices for N are:

The correct choice is (c) 169, since it gives an emf of about 8.0 V.

Faraday's law is a law of physics that explains how a magnetic field can produce an electric current. This law states that a change in magnetic flux through a closed wire will cause an electromotive force (EMF) in the wire. This emf is proportional to the rate of change of magnetic flux and is opposite in direction to the direction of change of magnetic flux.

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Without further information or context, it is impossible to determine the proportions of sand, silt, and clay at point t.

Soil composition can vary greatly depending on location, climate, and geological history. Soil scientists use a variety of methods to determine the proportions of different soil particles, such as texture-by-feel analysis, which involves rubbing soil between fingers to determine the relative proportions of sand, silt, and clay. Other methods include laser diffraction and X-ray diffraction. Understanding the soil composition can help inform land use and management decisions, as different soils have varying water-holding capacities, nutrient availability, and erosion potential. It is important to gather specific information about the location in question to accurately determine soil composition.

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Answer:

The change on the Celsius scale is 27.22 °C.

Explanation:

The conversion of Fahrenheit to Celsius is the following:

\(T = \frac{5}{9}(^{\circ} F - 32)\)

So, we need to convert T₁ and T₂ from °F to °C:

\(T_{1} = \frac{5}{9}(^{\circ} F - 32) = \frac{5}{9}(- 4 - 32) = -20 ^{\circ} C\)

\(T_{2} = \frac{5}{9}(^{\circ} F - 32) = \frac{5}{9}(45 - 32) = 7.22 ^{\circ} C\)

Hence, the change on the Celsius scale is:

\( \Delta T = T_{2} - T_{1} = 7.22 - (-20) = 27.22 ^{\circ} C \)

Therefore, the change on the Celsius scale is 27.22 °C.

I hope it helps you!

Answer:

The rock would orbit the earth at a velocity of 17,500 MPH next to the satellite. 

Answer:

I don't even know can u tell me how to ask questions

Answer:

draw the two atomic structures and then focus in on the electrons either gaining or losing and draw them with arrows and dots

Explanation:

i got a 5/5

20 characters

The time required to cover the Moon to a depth of 1.20 meters with micrometeorites.

To find out how long it would take to cover the Moon to a depth of 1.20 meters with micrometeorites, we can calculate the volume of the Moon and then divide it by the volume of one micrometeorite. Let's break down the calculation step by step:

Calculate the volume of the Moon:

The average radius of the Moon is approximately 1.737 ×10⁶ meters. Using the formula for the volume of a sphere, V = (4÷3)πr³, we can calculate the volume of the Moon.

\(V_{moon}\) = (4÷3)π(1.737 × 10⁶)³

Calculate the volume of one micrometeorite:

The diameter of the micrometeorite is given as 1.30 ×10⁽⁻⁶⁾ meters, which means the radius is half of that.

\(r_{meteorite}\) = (1.30 × 10⁽⁻⁶⁾)÷2

Using the formula for the volume of a sphere, V = (4÷3)πr₃, we can calculate the volume of one micrometeorite.

\(V_{meteorite}\) = (4÷3)π((1.30 × 10⁽⁻⁶⁾)÷2)³

Calculate the number of micrometeorites needed to fill the Moon:

To find the number of micrometeorites required to fill the Moon, we divide the volume of the Moon by the volume of one micrometeorite.

\(N_{meteorites}\) = \(V_{moon}\) ÷ \(V_{meteorite}\)

Calculate the time to fill the Moon:

Since one micrometeorite strikes each square meter of the Moon each second, we can equate the number of micrometeorites needed to fill the Moon to the number of seconds it would take.

Time = \(N_{meteorites}\) ÷ (1 m²/s)

Convert seconds to years:

Finally, we convert the time in seconds to years by dividing by the number of seconds in a year (assuming 365.25 days in a year and 24 hours in a day).

\(Time_{years}\) = Time ÷ (365.25 days/year × 24 hours/day × 3600 seconds/hour)

Performing these calculations will give us the time required to cover the Moon to a depth of 1.20 meters with micrometeorites.

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The Lorentz transformation equations are employed to switch between reference frames where the electric field (E) and magnetic field (B) are parallel. These equations incorporate the concepts of time dilation and length contraction within the framework of relativity theory.

According to the principle of relativity, the laws of physics remain consistent across all inertial reference frames moving at constant velocities relative to each other. To transition from one reference frame to another, the Lorentz transformation equations are utilized.

The general form of the Lorentz transformation equations is as follows:

x' = γ(x - vt)

y' = y

z' = z

t' = γ(t - vx/c²)

In these equations, x, y, z, and t represent the coordinates in the stationary frame, while x', y', z', and t' represent the coordinates in the moving frame. The variable v denotes the relative velocity between the two reference frames, and c represents the speed of light. Additionally, the γ factor, given by γ = 1/√(1 - v²/c²), is incorporated in these equations.

By employing the Lorentz transformation equations, it is possible to convert coordinates from one reference frame to another, enabling the analysis of physical phenomena in different frames of reference.

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Answer:

15m/s²

Explanation:

According to Newton's second law;

Force = mass * acceleration

Given

Force = 1.5N

mass = 0.10kg

Required

acceleration

Substitute into the expression;

1.5 = 0.1a

a = 1.5/0.1

a = 15m/s²

Hence the acceleration that the puck move across the air table is 15m/s²

Here the total time of flight is used to determine how long it will take the ball. it takes 5s to the ball to hit the ground.

u = 25 m/s

h= 1.90 m

so tine of ascent = v= u + at

so u = gt so we have t =u/g

putting up the values we have,

t = 2.5 s

so total time of flight = 5s = time taken by the ball to hit the ground.

An object is said to be in free fall if there are no external forces acting on it other than gravity, which has the determined constant value of g = -9.8 m/s2. The object’s height, or h, is equal to ½ gravity times the square of the falling time. Horizontal projectile motion equations

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Answer: seen below

Explanation:

a) Water has the highest specific heat capacity in this case while sand has the lowest specific heat capacity.

b) Sand absorb the least energy for it temperature change (increase or decrease). This means that their temperatures change more quickly due to it low specific heat capacity of 0.290J/g°C) at 25°C)

c) using the formula:

Q = m × cP × (final temperature -initial temperature)

where:

Q = heat

m = is the mass

cP = is the mass heat capacity,

T= is the temperature

Q = 2 kg × 600 J/(kg°C) × (30°C - 20°C)

Q = 12000 J

d) in simpler term, The second law of thermodynamics states that when energy changes from one form to another form, entropy The second law of thermodynamics says that when energy changes from one form to another form, or matter moves freely, entropy (which is a measure of the amount of energy in a physical system that cannot be used to do work) in a closed system increases. This is why your feet gets cold when you put them in the water.

In order to find the time it takes, first let's convert the distance from miles per hour to feet per second: calculate the acceleration using Torricelli's equation

Then, let's :

Now, we calculate the time with the formula below:

Therefore the time required is 1.7 seconds.

Answer:

Higher mass or higher speed

Explanation:

Higher mass will require more force

F= ma       if m goes up  F   goes up   to stop in the same distance

Here are just some of the basic formulas used in physics. The formulas used in physics can be divided into various categories such as mechanics, thermodynamics, electromagnetism, optics, and so on.

Here are some of the basic formulas used in physics:

Kinematics:

       Distance = Velocity x Time (d = vt)

       Velocity = Displacement/Time (v = Δd/Δt)

       Acceleration = Change in Velocity/Time (a = Δv/Δt)

Dynamics:

       Force = Mass x Acceleration (F = m x a)

       Work = Force x Distance (W = F x d)

       Power = Work/Time (P = W/t)

Energy:

       Kinetic Energy = 0.5 x Mass x Velocity^2 (KE = 0.5 mv^2)

       Potential Energy = Mass x Gravity x Height (PE = mgh)

       Total Energy = Kinetic Energy + Potential Energy (E = KE + PE)

Waves:

       Speed = Frequency x Wavelength (v = fλ)

       Energy = Power x Time (E = Pt)

Electromagnetism:

       Coulomb's Law: Force between two charged particles (F = kq1q2/r^2)

       Ohm's Law: Voltage = Current x Resistance (V = IR)

       Faraday's Law of Induction: Induced EMF = Change in magnetic flux/Time (ΔΦ/Δt)

Thermodynamics:

       Ideal Gas Law: Pressure x Volume = Number of particles x Boltzmann's constant x Temperature (PV = nRT)

       Heat Capacity: Heat added = Heat Capacity x Change in Temperature (Q = CΔT)

       First Law of Thermodynamics: Energy cannot be created or destroyed, only transformed from one form to another (ΔE = Q - W)

The list is not exhaustive and there are many more formulas that are used in different areas of physics.

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Answer:

3,900m³

Explanation:

Answer:

9 kilojoules of energy are stored in a kilogram of concrete due to sensible heat.

Explanation:

In this exercise we need to determined the sensible heat store in a kilogram of concrete due to a change in temperature. Sensible heat (\(Q\)), measured in kilojoules, is defined by the following expression:

\(Q = m\cdot c\cdot (T_{f}-T_{o})\) (1)

Where:

\(m\) - Mass, measured in kilograms.

\(c\) - Average specific heat of concrete, measured in kilojoules per kilogram-degree Celsius.

\(T_{o}\), \(T_{f}\) - Initial and final temperatures of concrete, measured in degrees Celsius.

If we know that \(m = 1\,kg\), \(c = 0.9\,\frac{kJ}{kg\cdot ^{\circ}C}\), \(T_{o} = 20\,^{\circ}C\) and \(T_{f} = 30\,^{\circ}C\), then the energy store in a kilogram of concrete is:

\(Q = (1\,kg)\cdot \left(0.9\,\frac{kJ}{kg\cdot ^{\circ}C} \right)\cdot (30\,^{\circ}C-20\,^{\circ}C)\)

\(Q = 9\,kJ\)

9 kilojoules of energy are stored in a kilogram of concrete due to sensible heat.

\( \sf• \: Current \: (I) = 100 \: Amps.\)

\( \sf• \: Resistance \: (R) = 50 \: ohms\)

\( \\ \)

\( \sf• \: Voltage \: (V)\)

\( \\ \)

\( \huge\bf{ \underline{Solution:- }}\)

\( \bf \red{ \bigstar{ \: The \: formula \: of \: Voltage \: (V) = IR}}\)

\( \rightarrow \sf V = 100 \times 50\)

\( \rightarrow \sf V = 5000\)

\( \\ \)

\( \bf \purple{Therefore, \: Volatage \: is \: 5000 \: v.}\)

Answer:

The acceleration of freely falling bodies due the force of attraction of the other body is called Acceleration due to gravity. It is a constant quantity for a given attracting body at a given place. Like for earth on or near its surface, the average value of acceleration due to gravity is 9.8 m/s2.

Answer: The acceleration de to gravity on eon the moon it has earth has a pull and on the moon it is mass        <3