A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope , its speed is 4 m/s. But 3 seconds later at the bottom of the slope , its speed is 22 m/s. What is the average acceleration?
Please Show Steps or work on how to do it :(( This topic confuses me and I just get lost.

Answer:

True

Explanation:

Answer and Explanation:

True I believe bc if you put a certain amount of force on an object it'll move and depending on where you place the force on the object it'll move in that direction. How much force and how much weight the object has will determine the speed...

Multimeter conducts like a big resistor. Since current will be very low due to the very high resistance, the circuit's overall current won't be impacted in the slightest. It will transmit the appropriate voltage

A passive electrical device known as a resistor adds resistance to the flow of electric current. They can be discovered in virtually all electrical networks and electronic circuits. One ampere of current (A) and a one volt (V) drop across a resistor's terminals produce an ohm, which is the resistance that results. The voltage at the terminal ends determines the current in a direct proportion. Ohm's law demonstrates how to calculate this ratio. Multiple applications exist for resistors. Among some examples are voltage division, heat generation, matching and loading circuits, current limiters for electric current, gain control, and time constant setting. With resistance values spanning a range of more than nine orders of magnitude, they are readily available on the market. Units of resister is omhs.In the International System of Units, the ohms serves as the reference unit for electrical resistance.

Learn more about resistance here:

https://brainly.com/question/11431009

#SPJ4

The farmer's decision to sell produce directly to the local market is an example of vertical integration.

Vertical integration refers to the process of combining different stages of production or distribution within a single company or entity. In this case, the farmer is bypassing the intermediaries or agents who previously bought his produce and sold it to the markets. By selling directly to the local market, the farmer is integrating the production and distribution stages of the supply chain, eliminating the need for intermediaries and gaining more control over the pricing and sales of his products.

Know more about vertical integration here:

https://brainly.com/question/30665179

#SPJ11

Answer:

41895 J

Explanation:

GPE= mgh

m=95

g=9.8

h=45

95*9.8*45

The gravitational potential energy of the rock at the top of the cliff is 41895 Joules.

Gravitational potential energy is simply the potential energy an object possessse in relation to another object due to gravity.

It is expressed as;

U = mgh

Given the data in the question;

We substitute our values into the expression above.

U = mgh

U = 95kg × 9.8m/s² × 45m

U = 41895kgm²/s²

U = 41895J

Therefore, the gravitational potential energy of the rock at the top of the cliff is 41895 Joules.

Learn more about gravitational potential energy here: https://brainly.com/question/3884855

#SPJ2

The magnitude of the magnetic field for that wave at point p is 1.9 × 10-6 T.

The given question is related to the electromagnetic wave. The magnitude of the electric field at a point p for a certain electromagnetic wave is 570 N/C.

We need to determine the magnitude of the magnetic field for that wave at p.

So, we know that an electromagnetic wave consists of an electric field and a magnetic field perpendicular to each other.

We can use the formula to find the relation between the electric and magnetic fields for an electromagnetic wave.c = E/B Where,c is the speed of light (3 x 108 m/s)E is the electric field intensityB is the magnetic field intensity

Using the above equation, we can find the magnetic field for that wave at point P.

Magnitude of the electric field, E = 570 N/CMagnitude of the speed of light, c = 3 x 108 m/s

Putting values in the above formula;570 = B x 3 x 108B = 570/3 x 108B = 1.9 × 10-6 T

Therefore, the magnitude of the magnetic field for that wave at point p is 1.9 × 10-6 T.

Thus, the magnitude of the magnetic field for that wave at point p is 1.9 × 10-6 T.

Learn more about electromagnetic wave.

brainly.com/question/29774932

#SPJ11

Answer:

b. they get blown in from colder or warmer areas.

Answer:

Option b.

Hope it helps

Answer:

239.2 N

Explanation:

Given that a vertical rope is attached to an object that has a mass of 40.0 kg and is at rest.The tension in the rope needed to give the object an upward speed of 3.50 m/s

in 0.700 s is

The tension in the rope and the weight of the mass will be acting in an opposite direction.

T - mg = ma ....... (1)

Where acceleration a = Velocity/ time

a = 3.5 / 0.7

a = 5 m/s^2

Substitutes acceleration a into the equation 1 above.

T - 40 × 9.8 = 40 × 5

T - 39.2 = 200

T = 200 + 39.2

T = 239.2N

Therefore, the tension in the rope needed to give the object an upward speed of 3.50 m/s

in 0.700 s is 239.2N

Answer:

The answer is T=592 N

Explanation:

Fw= 392N

a=v/t, so a=3.5ms^-1/0.7s

a=5ms^-2

Fnet=ma

T-Fw=ma

T-392N=40kg(5ms^-2)

T=592N

Answer:

V = (S2 - S1) / 3600     average velocity of satellite

V = 10 m / 3600 sec = 2.78E-3 m/s

(b) is the correct answer

The strength of the resulting force when the distance is decreased to 0.40d is 6.25 times greater than the original force, or F' = 6.25F.

When two identical point charges Q are separated by a distance d, the electrical force F between them is governed by Coulomb's Law:

F = k(Q^2/d^2), where k is the electrostatic constant.

If the distance between the charges is decreased to 0.40d, the new force F' can be found using the same formula: F' = k(Q^2/(0.40d)^2).

To find the strength of the resulting force, we can compare F' to the original force F. Dividing the new equation by the original equation,

we get F'/F = (k(Q^2/(0.40d)^2))/(k(Q^2/d^2)). The k and Q^2 terms cancel out,

leaving F'/F = (d^2)/(0.40d)^2. Simplifying this,

we get F'/F = 1/(0.40)^2 = 1/0.16 = 6.25.

To learn more about : strength

https://brainly.com/question/26257705

#SPJ11

Answer:

Given that

speed u=4*10^6 m/s

electric field E=4*10^3 N/c

distance b/w the plates d=2 cm

basing on the concept of the electrostatices

now we find the acceleration b/w the plates  to find the horizontal distance traveled by the electron when it hits the plate.

acceleration a=qE/m=\(1.6*10^{-19}*4*10^3/9.1*10^{-31} =0.7*10^{15}\)=\(7*10^{14}\) m/s

now we find the horizontal distance traveled by electrons hit the plates

horizontal distance

\(X=u[2y/a]^{1/2}\)

=\(4*10^6[2*2*10^{-2}/7*10^{14}]^{1/2}\)

=\(3*10^{-2}\)= 3 cm

Temperature changes lead to solubility changes for salt dissolved in water as explained below:

A change in temperature will change the solubility of a solute in a solvent. In general, an increase in temperature causes solubility to increase, while a decrease in temperature causes solubility to decrease.

In this scenario, a salt is being dissolved in water.

Therefore, the best answer to the question is B.

High temperatures mean that sodium and chlorine ions will be moving faster, increasing the odds that they will collide and combine. This reduces solubility.Temperature plays an important role in the solubility of salts in water. Higher temperatures result in greater solubility of the salt in the water, whereas lower temperatures result in lesser solubility.

Sodium chloride (NaCl) dissolves in water due to the attraction of the positive and negative charges between the sodium and chloride ions. Because the attraction between these charges grows stronger with decreasing temperature, the solubility of NaCl in water decreases.

To know more about solubility visit :

https://brainly.com/question/31493083

#SPJ11

Newton's third law of motion states that for every action, there is an equal and opposite reaction. The action-reaction pair is used to describe the interaction between two objects. Therefore, when a car is speeding up as it drives along a level road, an action-reaction pair occurs.

An action-reaction pair is a pair of forces that are equal in strength and opposite in direction. When an object exerts a force on another object, the second object exerts an equal and opposite force on the first object. The action-reaction pair when a car speeds up as it drives along a level road can be explained as follows: Action force: The car exerts a force on the road in the forward direction. This is the action force. Reaction force: The road exerts a force on the car in the backward direction. This is the reaction force.

Learn more about Newton's third law of motion here ;

https://brainly.com/question/974124

#SPJ11

Answer:

answer is 66 kilograms-force = 647.2389 newtons

Explanation:

Answer:

\(\boxed {\boxed {\sf 646.8 \ Newtons }}\)

Explanation:

Weight in Newtons can be found by multiplying the mass times the acceleration of gravity.

\(W=m*g\)

The mass of the man is 66 kilograms on Earth.

Earth has an acceleration of gravity that is 9.8 meters per square second.

\(m= 66 \ kg \\g=9.8 \ m/s^2\)

Substitute the values into the formula.

\(W=66 \ kg *9.8 \ m/s^2\)

Multiply.  

\(W=646.8 \ kg*m/s^2\)

1 kg * m/s² is equal to 1 Newton, therefore our answer of 646.8 kg *m/s² is also equal to 646.8 Newtons, or N.

\(W=646.8 \ N\)

The man's weight in Newtons in 646.8 Newtons.

The answer is 0.4

Within 6.6 km (0.4 mi.) of the Earth's surface, approximately one-half of the atmosphere by mass or weight (found between sea level and the height at which air pressure level is 600 mb) is located.

What is atmosphere pressure?

To learn more about atmosphere pressure visit:

https://brainly.com/question/15300008

#SPJ4

The final velocity of April, the skateboard, and the watermelon after the collision is 0.18 m/s.

The final velocity of April, the skateboard, and the watermelon after the collision is calculated by applying the principle of conservation of linear momentum as shown below;

m1u1 + m2u2 = v (m1 + m2)

where;

(55 x 0) + (2 x 5) = v (55 + 2)

10 = 57v

v = 10/57

v = 0.18 m/s

Learn more about linear momentum here: https://brainly.com/question/7538238

#SPJ1

Yes, the official is correct. Basket interference occurs when a player touches the ball or the net while it is in the cylinder above the basket.

What is interference?
Interference in physics is a phenomenon where two waves combine besides adding their displacements at each and every point in space and time to produce a new wave that has a higher, lower, or identical amplitude. The interaction of waves that are coherent or correlated with one another, either because they originate from the same source or because their frequencies are similar or almost identical, leads to both constructive and destructive interference. All types of waves, including light, radio, acoustic, groundwater waves, gravity waves, and matter waves, can exhibit interference effects.

To learn more about interference
https://brainly.com/question/9655287
#SPJ4

The equation given as:

\(\(\[ \gamma_{d}\)

=\(\frac{G_{s} \gamma_{w}}{1+e} \]\)\)

needs to be rewritten in terms of 6. We know that e = 2.71 approximately,  the equation in terms of 6 is:

\(\(\[\gamma_d = \frac{6G_s\gamma_w}{22.26}\]\)\)

This new equation gives the value of γd in terms of 6.

so we will substitute this value in the equation to get:

\(\[\gamma_d = \frac{G_s\gamma_w}{1+2.71}\]\)

Simplifying the expression by adding the denominator terms and getting a common denominator, we get:

\(\(\[\gamma_d = \frac{G_s\gamma_w}{3.71}\]\)\)

Now, we can divide both sides of the equation by 3.71 to isolate γd on one side and write the equation in terms of 6, as follows:

\(\[\gamma_d\)

\(= \frac{G_s\gamma_w}{3.71} \times \frac{6}{6}\] \[\gamma_d \(\)

\(= \frac{6G_s\gamma_w}{22.26}\]\)\)

To know more about denominator visit:

https://brainly.com/question/15007690

#SPJ11

A constant force of 1.25N

Explanation:

This is a kinematics problem.

First find acceleration,

then use F = ma to find force.

Given:

mass = .5kg

delta x = 20m

t = 4s

a = ?

Friction = 0

From the kinematics equations:

delta x = Vi + (1/2)at^2

Plug in terms that are given:

20m = 0 + (1/2)a(4^2)

(2*20m)/(16s^2) = a

40m/(16s^2)= 2.5m/s^2

Now use F = ma to find force exerted on object.

F = (0.5kg)*(2.5m/s^2)

F = 1.25N

The static thrust of the turbojet engine mounted on a stationary test stand at sea level, with inlet and exit areas at 1.0 atm and 800 K respectively, is b.) Thrust 32680N.

To calculate the static thrust of the engine, we can use the ideal rocket equation:

Thrust = mass flow rate * exhaust velocity

The mass flow rate can be calculated using the equation:

mass flow rate = air density * inlet area * inlet velocity

The exhaust velocity can be approximated as the exit area times the exit velocity.

Given that the engine is mounted on a stationary test stand at sea level, we can assume the inlet velocity is zero. Additionally, we know the inlet and exit areas, as well as the atmospheric pressure at sea level.

By calculating the mass flow rate and the exhaust velocity using the provided information and plugging them into the ideal rocket equation, we arrive at the static thrust of approximately 32680N.

To learn more about Thrust click here

https://brainly.com/question/863770

#SPJ11

Answer:

Place the object on the disk and measure the distance from the center of the disk to the center of mass of the object by using a meterstick. Slowly increase the rate the disk rotates until the object begins to slide off the disk. Record the time in which the object makes one revolution around the center of the disk.

Explanation:

Draw a free body diagram.  There are three forces:

Weight force mg pulling down,

Normal force N pushing up,

Friction force Nμ pushing towards the center.

Sum of forces in the vertical direction:

∑F = ma

N − mg = 0

N = mg

Sum of forces in the centripetal direction:

∑F = ma

Nμ = m v²/r

mgμ = m v²/r

gμ = v²/r

μ = v² / (gr)

It takes T seconds for the object to move 2πr meters.

v = 2πr / T

Substituting:

μ = (2πr / T)² / (gr)

μ = 4π²r / (gT²)

The measurements you need are the distance between the object and the center of the disk (r) and the time it takes for one revolution (T).

The time derivative for the magnetic field (∂B/∂t) is the missing term in the equation.

The Maxwell's equation that tells us that writing the electric field as the gradient of a scalar potential is a special case is:

∇ × E = -

This equation is known as Faraday's law of electromagnetic induction. It states that the curl of the electric field (∇ × E) is equal to the negative rate of change of the magnetic field (∂B/∂t). This equation implies that there can be situations where the curl of the electric field is non-zero, indicating that the electric field cannot always be expressed as the gradient of a scalar potential.

The missing term in the equation is the time derivative of the magnetic field (∂B/∂t). It signifies that changes in the magnetic field can induce electric fields with non-zero curl, which cannot be explained solely by a scalar potential. This relationship is a fundamental aspect of electromagnetism and indicates the interdependence between electric and magnetic fields.

To learn more about magnetic field

https://brainly.com/question/14411049

#SPJ11

Complete Answer:

5) Fun with Maxwell! Max is in trouble... (10 points)

We usually write electric field as the gradient of a scalar potential. Which of Maxwell's equations tells us that this must be a special case (and why)? What is the form of the missing term? (Don't worry about 's or e's, etc..)

HINT: This is about the vector calculus theorems.

Answer:

-56 m/s

Explanation:

The projectile motion of velocity can be modelled as:

\( \displaystyle{v = u + gt}\)

u is initial velocity which is given in the problem (4 m/s), t is time which is also already given in the problem (6 seconds) and g is a constant of acceleration due to gravity (9.8 m/s²)

However, since the egg is thrown upward which is against the gravity direction, the sign of direction must be negative. Hence, g = - 9.8 m/s²

\( \displaystyle{v = 4 - 9.8 \times 6} \\ \\ \displaystyle{v = 4 - 60} \\ \\ \displaystyle{v = - 56 \: \text{m/s}}\)

Given that it has a 1.5 m wavelength The wave moves 0.75 m in one second as a result it takes the wave 8 seconds to move 6.0 meters in the x-direction.

Newton's First Law of Motion (Inertia) An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.

The wavelength of the wave is given as 1.5 meters and it is traveling in the x-direction. The speed of a wave can be calculated using the formula:

Speed = Wavelength / Period

Since the wave is crossing the x-axis every second, its period is 1 second. So, the speed of the wave can be calculated as:

Speed = 1.5 meters / 1 second = 1.5 meters/second

To find out how long it takes the wave to travel 6 meters in the x-direction, we can use the formula:

Time = Distance / Speed

Time = 6 meters / 1.5 meters/second = 8 seconds

To know more about wave motion visit:

https://brainly.com/question/15006260

#SPJ4

Answer:

8.0

Explanation:

The impact force of the mosquito on the car is significantly smaller than the impact force of the car on the mosquito. This is due to the fact that the car is much larger and has significantly more mass than the mosquito.

Additionally, the car's speed of 50 miles per hour also increases the force of impact. However, the impact force on the car from the mosquito is negligible and will not cause any significant damage or change in speed.

When a car moving down the highway at 50 miles per hour runs into a mosquito, the impact forces on both the car and the mosquito are equal but opposite in direction, according to Newton's Third Law of Motion. This means that the force exerted on the mosquito is the same as the force exerted on the car, but the mosquito will experience a much greater acceleration due to its smaller mass.

To know more about mosquito visit:-

https://brainly.com/question/12296806

#SPJ11

Answer:

I think HCl is an acid and Cl-is its conjugate base

For the given equation  HCl + H2O → Cl– + H3O+ the statement that is true is that HCl is an acid, and Cl – is its conjugate base, therefore the correct answer is option A .

A chemical compound is a combination of two or more either similar or dissimilar chemical elements.

For example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.

As given in the problem we have to find Which statement about the reaction is correct for the given chemical reaction,

HCl + H2O → Cl–+ H3O +

For the given equation  HCl + H2O → Cl–+ H3O+ the statement that is true is that HCl is an acid, and Cl– is its conjugate base .

Thus, the correct answer is option A .

To learn more about a chemical compound here, refer to the link given below ;

brainly.com/question/12166462

#SPJ5

The - 60.6 N is the average force experienced by the clay.

The force applied by a body moving at a constant velocity (rate of speed) over a fixed time period is known as the average force. The magnitude and direction of force are both vector quantities. The term 'average' denotes that this velocity was not precisely measured or was not 'instantaneous.' As a result, the average force over a given time period is equal to the body's mass multiplied by its average velocity. The magnitude and direction of the average force are both vector quantities.

Average acceleration = Δv/t

We know F = ma,

We have m = 0.24

Δv = Final velocity - Initial velocity

Δv = (0 - 23) m/s
Δv = -23 m/s

t = 91 ms or 0.91 s

As we know acceleration (a) = v/t

So, a = -23/0.91

a = - 25.27 m/s²

Put the above value in formula F = ma.

F = (0.24 kg) × (-25.27 m/s²)

F = - 60.6 N

Therefore, the average force experienced by the clay is - 60.6 N.

To know more about average force, visit:
https://brainly.com/question/16344573

#SPJ4

The complete question is:

"A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 23 m/s. the clay comes to a stop against the wall in 91 ms, what is the average force experienced by the clay"

The approximate temperature at the South Pole is equal to -47.7 °C.

Fahrenheit to Celsius formula can be used to change the temperature from the scale Fahrenheit to Celsius. Both scales are utilized to determine the temperature and it offers a way to determine the object’s hotness and coldness. The symbol used to express Fahrenheit is °F. Similarly, the symbol used to represent Celsius is °C. The Celsius scale of temperature is also called centigrade scale.

Fahrenheit to Celsius formula is commonly used to convert the given temperature in Fahrenheit to Celsius.

\(^oC =(^oF-32)\times \frac{5}{9}\)

Where F is the temperature in Fahrenheit and C is the temperature in Celsius.

Given, the temperature in Fahrenheit = -54 °F

The temperature in Celcius at the South Pole can be calculated as:
T (°C) = (-54 -32) × (5/9)

T (°C) = -47.7 °C

Learn more about temperature conversion, here:

https://brainly.com/question/13421795

#SPJ2

probably a little late on this but the dude got everything wrong heres a screenshot of the answers.

Solubility: the ability of a substance to dissolve in another.

Density: the amount of mass in a given volume.

Buoyant force: the upward force on an object in a fluid.

Conductivity: the ability of a substance to transfer heat or electricity.

Boiling point: the temperature at which a liquid becomes a gas.

Solubility can be defined as a measure of how readily a substance dissolves in a solvent to form a solution.

Density can be defined as mass all over the volume of an object.

Buoyancy can be defined as an upward force created by the fluid (liquid) displaced by an object.

Conductivity can be defined as the ability of an object, substance or body to transfer heat or electricity to another.

Boiling point is the temperature at which a physical matter changes phase from liquid to gas.

Find more information here: https://brainly.com/question/21371565

Answer:

\(\boxed {\boxed {\sf \frac {8}{3} \ m/s^2 \ and \ not \ higher \ than \ the \ car's \ acceleration }}\)

Explanation:

Acceleration is the rate of change of velocity with respect to time. It is calculated by dividing the change in velocity by the time.

\(a= \frac {v_f-v_i}{t}\)

1. Motorist Acceleration

The motorist accelerates from an initial velocity of 0 meters per second to a final velocity of 8 meters per second in 3 seconds.

Substitute the values into the formula.

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

Solve the numerator.

\(a= \frac{8 \ m/s}{3 \ s}\)

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

\(a \approx 2.667 \m/s^2\)

2. Car Acceleration

The car accelerates from an initial velocity of 0 meters per second to a final velocity of 30 meters per second in 6 seconds.

Substitute the values into the formula.

\(a= \frac{ 30 \ m/s - 0 \ m/s }{6 \ s}\)

Solve the numerator.

\(a= \frac{30 \ m/s}{6 \ s}\)

\(a= { 5 \ m/s^2}\)

The motorist's acceleration is 8/3 or approximately 2.667 meters per second squared. This is not higher than the car's acceleration of 5 meters per second squared.