What is the potential energy of a 3kg ball that is on the groundPotential Energy = Weight x HeightWeight = Potential Energy / HeightHeight = Potential Energy / WeightWeight = Mass x 10Mass = Weight / 10

Answer:

Explanation:

To verify the hypothesis that the Earth has a liquid outer core and a solid inner core, we can use seismographs to study seismic waves that pass through the Earth's interior. The experiment can be set up as follows:

1. Select multiple seismograph stations around the globe to record seismic waves.

2. Choose a location for an earthquake to occur. The earthquake should be large enough to generate seismic waves that travel through the Earth's interior and be located far away from the selected seismograph stations.

3. Record the seismic waves generated by the earthquake at the various seismograph stations.

4. Analyze the seismic waves to determine how they interact with the Earth's interior. Specifically, we will study how the seismic waves pass through the Earth's outer and inner core.

5. Repeat the experiment using earthquakes of different magnitudes and at different locations, and record the resulting seismic waves.

Equipment needed for the experiment include seismographs, computers for data analysis, and earthquake monitoring systems. Seismographs can be installed in various locations around the globe to record the seismic waves generated by the earthquake. Data from these seismographs can be collected and analyzed using computer software to determine how the seismic waves interact with the Earth's interior.

Evidence that proves the outer core is liquid includes the observation of seismic waves that cannot travel through the liquid outer core, resulting in a shadow zone on the opposite side of the Earth from the earthquake. This shadow zone indicates that the seismic waves are refracted or absorbed by the liquid outer core. In contrast, evidence that proves the inner core is not liquid includes the observation of seismic waves that are reflected and refracted by the inner core boundary. This is due to the fact that the inner core is solid and has a different density and composition than the outer core.

To use repeatability to show whether the hypothesis is valid or not, we can repeat the experiment using earthquakes of different magnitudes and at different locations, and record the resulting seismic waves. If the results from multiple experiments are consistent with the hypothesis, then we can have greater confidence that the hypothesis is valid. If the results from multiple experiments are inconsistent, then we would need to investigate further to determine the cause of the inconsistency and revise the hypothesis accordingly.

Answer:

Therefore, the force required to accelerate a 500 kg object at a rate of 10 m/s^2 is 5000 Newtons (N).

Explanation:

The force required to accelerate an object can be calculated using the formula:

force = mass x acceleration

where "mass" is the mass of the object being accelerated, and "acceleration" is the rate at which the object's velocity is changing.

In this case, the mass of the object is 500 kg, and the acceleration is 10 m/s^2. Plugging these values into the formula gives:

force = mass x acceleration

force = 500 kg x 10 m/s^2

force = 5000 N

Therefore, the force required to accelerate a 500 kg object at a rate of 10 m/s^2 is 5000 Newtons (N).

Answer: because when you remove the battery, the the magnet no longer has electricity flowing through it, therefore the magnetic field disappears. Thats why its called a temporary magnet

Explanation:

Answer:

B

Explanation:

Answer:

B

Explanation:

Answer:

A

Explanation:

The angular momentum of a system of particles around a point in a fixed inertial reference frame is conserved if there is no net external torque around that point:

d

→

L

d

t

=

0

or

→

L

=

→

l

1

+

→

l

2

+

⋯

+

→

l

N

=

constant

.

Note that the total angular momentum

→

L

is conserved. Any of the individual angular momenta can change as long as their sum remains constant. This law is analogous to linear momentum being conserved when the external force on a system is zero.

Answer:

57.98 °Fahrenheit =

14.4333 °Celsius

Explanation:

(rounded to 6 digits)

Answer:

Explanation:

Increase in gravitational potential energy = m x g x h

where m is mass , g is gravitational acceleration and h is height

In the first case when man climbs

increase in potential = 85 x g x h = 1.85 x 10³ J

gh = 21.7647

when dog climbs

increase in potential = 14.5 x g x h  J

= 14.5 x 21.7647

= 315.6 J

In order to determine the kinetic energy of the roller coaster at a height of 20m, take into account that the mechanical energy is constant.

Then, when the roller coaster is at 20m, the sum of the potential energy and the kinetic energy must be equal to 352,800J.

Find the potential energy by using the following formula:

where,

m: mass = 600kg

g: gravitational acceleration constant = 9.8m/s62

h: height = 20m

Replace the previous values into the formula for U:

Now, use the following expression for the mechanical energy:

where,

E: mechanical energy = 352,800J

U: potential energy = 117,600J

K: kinetic energy = ?

Solve the equation above for K, replace the values of E and U, and simplify:

Hence, the kinetic energy of the roller coaster at 20m is 235,200J

The Title of the interviews Questionnaire is : Community Members' Right to Safe and Healthy Living Questionnaire. The Questionnaire is attached.

A tool for research known as a questionnaire comprises a series of questions formulated to extract data from individuals or a collective of individuals. A systematic approach in acquiring data, which permits researchers to obtain uniform feedback and perspectives from respondents, is termed as structured data collection.

Questionnaires have multiple applications such as conducting surveys, holding interviews, performing assessments, and carrying out evaluations.

Learn more about   questionnaire  from

https://brainly.com/question/25257437

#SPJ1

The correct statement which best describes a magnetic object from among the options above is:

They have many spinning electrons oriented in the same direction that create magnetic fields.

The correct answer choice is option a.

When magnetic material spins its electrons in the same axis in the magnetic field, the force of current which passes through the same direction results in the attraction which exists between the magnetic object and magnetic substance.

So therefore, we can now confirm that when we consider the orientation of electrons of magnetic material in a direction similar to field, it causes attraction.

Read more on magnetic field:

https://brainly.com/question/7802337

#SPJ1

Answer:

37500 N

Explanation:

F = ma

F = 7500 (5 m/s^2) = 37500 N

Answer:

the initial velocity of the  ball is 17.14 m/s

Explanation:

Given;

maximum height reached by the ball, h = 15 m

let the initial velocity of the ball = u

at maximum height, the final velocity of the ball is zero, v = 0

The initial velocity of the ball is calculated by using the following upward motion kinematic equation;

v² = u² - 2gh

0 = u² - 2(9.8 x 15)

u² = 294

u = √294

u = 17.14 m/s

Therefore, the initial velocity of the  ball is 17.14 m/s

Answer:

true

Explanation:

The acceleration of the car is approximately -3.06 m/s^2.

To find the acceleration of the car, we can use the kinematic equation:

v^2 = u^2 + 2as

Where:

v = final velocity = 0 m/s

u = initial velocity = 14 m/s

a = acceleration (to be determined)

s = displacement = 32 m

Plugging in the values into the equation, we can solve for acceleration:

0^2 = 14^2 + 2a(32)

Simplifying:

0 = 196 + 64a

Rearranging the equation:

64a = -196

Dividing both sides by 64:

a = -196/64

a ≈ -3.06 m/s^2

This means that every second, the car's velocity decreases by 3.06 meters per second. The negative sign indicates that the acceleration is in the opposite direction of the initial velocity, opposing the car's motion and bringing it to a stop.

For such more questions on acceleration

https://brainly.com/question/460763

#SPJ8

We have that the Time  is mathematically given as

t=0.33h

From the question we are told

Generally the equation for the Time   is mathematically given as

\(t=\frac{d}{va+vb}\\\\Therefore\\\\t=\frac{12}{30+6}\)

t=0.33h

For more information on Time visit

https://brainly.com/question/2570752

Answer:

Ideas for Prototype Design  

Similar to a cardboard oven just smaller and solar powered

Preliminary Sketches (attach separate paper, if needed)  

Option A:  i gave the picture

____________________________________________________________

Advantages: Disadvantages:  

● the tin foil will attract the sun● if theres enough heat for the food to warm up

●the plastic will keep bugs and/or animal away from getting it ● it might take longer  

●the box gives the food something to be in instead of the ground  

Option B: i think im going to stay with my original plan i can always make changes

__________________________________________________________

More advantages and disadvantges

Advantages: Disadvantages:  

●reducing my carbon footprint by alot ● heat varies so the food my take really really long

●using no energy other than the sun  

__________________________________________________________

Which of the three designs will you move forward with? Explain your reasons for selecting this design.

I will be moving forward with option A bc i personally can't think of another way or design and i think option A has more advantages than disadvantages  

__________________________________________________________

Building the Prototype  

What modifications, if any, did you make to the basic design during the construction process?

I used skewers to hold the flap up

__________________________________________________________

Predictions  

Will your device warm the hot dog to a temperature of 165°F? How will your device do this?

Well i guess it depends n alot of things such as where i will place my solar cooker and the weather changes i will most likely put my solar cooker on the black paper because darker colors absorb more heat then lighter ones, then i will wait maybe 10 -20 minutes and check on my hotdog

__________________________________________________________

Will your device efficiently warm the hot dog in 20 to 25 minutes? How will your device do this?  so my device will do this by attracting the suns rays and energy towards the box

__________________________________________________________

Will your device reach a temperature well above that of its surroundings? How will your device do this?

I think so especially if i put it in direct sunlight around a darker surface and of course the aluminium foil will help with this as well

__________________________________________________________

Observations  

Record your observations and the results of the experimental tests of your device below. Temperature of the surroundings (in °F): ______68_______  

Maximum temperature reached inside the solar cooker (in °F): _____59_____

__________________________________________________________

i added a picture but i will also put the numbers here althought keep in mind u might want to switch them up because its based off of my temperatures

Use this table to record the internal temperature of the hot dog every 2 minutes. Use a separate sheet of  paper, if necessary.

time:                           Temperature (°F)

4:00                            20

4:02                            20

4:04                            25

4:06                            26

4:08                            30

4:10                            34

4:12                            38

4:14                            40

4:16                            44

4:18                            46

4:20                           50

4:22                           55

4:24                           57

4:26                           60

4:28                           65

4:33                           72

4:35                           75

4:37                           76

4:39                           80

__________________________________________________________

Evaluating Your Prototype  

What worked well?

i would say definitely the black paper and tin foil sin they attracted most of the suns energy

__________________________________________________________

Which features can be improved upon?

i think maybe if i did t on a different day it would have gotten hotter

__________________________________________________________

How could the overall design of this device be improved?  

Position the flap more so that the hotdogs can get more sun

Doing it on a hotter day

Letting it cook longer

__________________________________________________________

Why would this change be an improvement? What concepts related to thermal energy transfer is this  improvement based on?  

this change would be an improvement by the hotdogs getting warmed to the right temperature this is related to thermal energy by the position of the flap i think if i angled it more in an abtuse angle the sun would have transferred to the foil to the bottom foil with the hotdogs

__________________________________________________________

Sketch of Your Final Design  

Draw a well-labeled sketch of the final design.

i provided a sketch it should be the last picture

OKAY FINALLY PLZ DONT REORT THIS I WORKED SO HARD ON IT LAST TIME AND IT GOT DELETED IF U HAVE ANY QUESTIONS ABOUT THE PROJECT I WILL TRY TO HELP YOU IN THE COMMENTS THANK YOUUUU - ( if your wndering what grade i got on this got a 100 percent )

OH AND PEACE.

Answer:

I am simply adding another answer so the one above can get a brainliest

Explanation:

I do not care about the points that I will wind up getting for this and they are right here just answer with gibberish

https://brainly.com/question/26856060

edit: in an attempt to return your points my question was taken down ill will return these

somehow

someway

sometime

Explanation:

velocity = dx/dt

\( \frac{dx}{dt} = 6t - 2 = 16\)

acceleration =

\( \frac{ {d}^{2}x }{d {t}^{2} } = 6 \ \\ \)

The height of the image of a curved mirror is 8.0cm

We are given that,

The object height = h₀= 10 cm

The image distance= q = 4 cm

The object distance = p = 8 cm

The height of the image height = h(i)= ?

Therefore height of the image can be given by the formula,

M = hi/ h₀ = q/p

Here, M is the magnification of the mirror, then putting the given values in above equation , therefore, we can get,

hi/ 10cm = 4cm/8cm

hi = 0.8 × 10 cm

hi = 8.0 cm

Thus, 8.0cm of height of the image will be produced.

To know more about mirror

https://brainly.com/question/5430065

#SPJ1

The difference in mass is then 2.01649u - 2.01355u = 0.00294u. This means that the energy released in this reaction is equal to 0.00294u × (c^2) = 4.621 x 10^-12 J.

What is mass?
Mass is a measure of the amount of matter an object contains. It is different from weight, which is a measure of the force gravity exerts on an object. Mass is typically measured in kilograms (kg) or grams (g).

The energy released in this reaction is equal to the mass difference between the products and the reactants multiplied by the speed of light squared. In this reaction, the mass of the reactants (1 proton and 1 neutron) is equal to 1.007825u + 1.008665u = 2.01649u.

The mass of the product (deuterium nucleus) is 2.01355u.  

This means that the energy released in this reaction is equal to 0.00294u × (c^2) = 4.621 x 10^-12 J.

To learn more about mass

https://brainly.com/question/19385703

#SPJ4

Answer:

Explanation:

according to the graph at B the potential energy of the particle is 2J

therefore we can use the kinetic energy equation to calculate the particle's velocity or speed.

\(E_{k} =1/2mv^{2}\)

2J= 1/2*1/2kg*v^2

8=v^2

v= 2√2 ms-1

Answer:

Part A

Newton's second law of motion states that the force applied to an object is directly proportional to the rate of change of momentum that is produced

Mathematically, we have;

F = m·v - m·u/Δt

Where;

m = The mass of the object

v = The final velocity of the object

u = The initial velocity of the object

Δt = The duration of motion of the object during change in velocity

Therefore, given that the mass, 'M', of the truck is larger than the mass, 'm', of the minivan, where the time of change in velocity Δt, and the initial and final velocities of both automobiles are the same such as in a sudden stop, the garbage ruck will exert more force than the minivan, and therefore, the garbage truck has a greater initial momentum before the automobiles are brought to a stop

Part B;

According to Newton's first law of motion, we have;

The use of a seat belt (and airbag for front seated passengers) will prevent dashboard or windscreen for the front passengers or the front seat for the passengers in the back, from being the item that stops the continued forward motion of the passengers in the car, which can lead to injury

Part C; The Newton's law of motion that act on a body at the point of impact is Newton's third law of motion, which states that the action and reaction are equal and opposite

Therefore, the action of the garbage truck on the minivan upon impact is equal to the reaction of the minivan to the force the garbage truck exerts on the minivan

Explanation:

Answer:

No because a pot plant system must interact with its surroundings (air, water, etc) and these are not closed systems.

Only if the pot plant were completely enclosed, say in a large glass jar would the system be closed.

Explanation:

final velocity =?

initial velocity = 5m/s

acceleration = 3 m/s^2

time =4 sec

now,

acceleration = final velocity-intail velocity / time taken

a = v-u /t

3=v-5/4

3×4=v-5

12 = v -5

12+5 = v

17 =v

v=17 m/s

Neap tides, which happen twice a month as well, take place when the sun and moon are at an angle to one another.

These bodies' monthly and yearly orbits have an impact on tidal movements. The phases of the moon affect spring and neap tides. Every month of the lunar year, there are two spring tides. Only when the sun and moon are at a perfect angle to one another can neap tides take place.

Neaps, which means powerless, is an Anglo-Saxon word. Actually, spring and neap tides often happen approximately a day after the Moon because the oceans need some time to adjust to its geometry.

To know more about neap tide visit:

https://brainly.com/question/29417771

#SPJ4

Explanation:

Current flowing through the circuit, I = 2A Applying Kirchoff’s Ist law at junction P, I = I1 + I2 I2 = I – I1 …(1) Applying Kirchoff’s Ind law at junction PQSP 5 I1 + 10 Ig – 15 I2 = 0 5 I1 + 10 Ig -15(I – I1) = 0 20 I1 + 10 Ig = 15 I 20 I1 + 10 Ig = 15 x 2 ÷ by 10 21 I1 + Ig = 3 … (2) Applying Kirchoff’s II law at junction QRSQ 10(I1 – Ig ) – 20(I – I1 – Ig ) – 10 Ig = 0 10 I1 – 10g – 20(I – I1 – Ig ) – 10 Ig = 0 10 I1 – 10 – 20 I + 20 I1 -20Ig – 10 Ig = 0 30 I1 – 40 Ig = 20 I ÷ by 10 ⇒ 3 I1 – 4 Ig = 20 I 3 I1 – 4 Ig = 2 I 3 I1 – 4 Ig = 2 x 2

hope this helps :)

To solve this problem, we will use Newton's second law of motion.

Newton's second law states that the force is equal to mass times acceleration.

Hence, the formula is as follows:Force = mass x acceleration

To calculate the force, we need to know the mass of the cart and the acceleration at which it is being towed.

As per the question, the cart's mass is 400 kg, and it is being accelerated at a rate of 3 m/s^2.

Hence, the force required to accelerate the cart can be calculated as follows:

Force = mass x acceleration \(Force = 400 kg\times3 m/s^2\)

\(Force = 1200 N\)

Therefore, the tension in the rope is 1200 N.

For such more question on Newton's second law

https://brainly.com/question/25545050

#SPJ8

When L = L₁, the circuit is a series RL circuit. The voltage across the inductor is given by Vₗ = XL₁i, where XL₁ = ωL₁ is the inductive reactance and i is the current flowing through the circuit. The voltage across the resistor is given by VR = Ri. The voltage across the capacitor is zero since it is connected in series with the inductor and the resistor.

The total voltage across the circuit is given by v = V√2 cos(ωt). By Kirchhoff's voltage law, we have v = Vₗ + VR,

V√2 cos(ωt) = XL₁i + Ri

The current i can be written as i = (1/Z) V√2 cos(ωt - φ), where Z = √(R² + XL₁²) is the impedance of the circuit and φ is the phase angle between the current and the voltage. Substituting i into the equation above, we get:

V√2 cos(ωt) = XL₁/Z V√2 cos(ωt - φ) + R/Z V√2 cos(ωt - φ)

Equating the coefficients of cos(ωt) and cos(ωt - φ), we get:

1 = XL₁/Z cos φ + R/Z sin φ

XL₁ sin φ = Z - R cos φ

tan φ = XL₁ / (Z - R cos φ)

The voltage across the inductor is given by:

Vₗ = XL₁ i = XL₁/Z V√2 cos(ωt - φ)

Vₗ/V = XL₁/Z cos φ

Substituting tan φ into this equation, we get:

Vₗ/V₁ = XL₁/Z₁ √[1 - (XL₁/Z₁)²] ... (1)

When L = L₂, the circuit is a series RC circuit. The voltage across the capacitor is given by VC = XC₂i, where XC₂ = 1/(ωC₂) is the capacitive reactance.  The total voltage across the circuit is given by v = V√2 cos(ωt). By Kirchhoff's voltage law, we have v = VC + VR, which gives:

V√2 cos(ωt) = XC₂i + Ri

Following the same steps as in the previous case, we can show that:

Vₗ/V₂ = XC₂/Z₂ √[1 - (XC₂/Z₂)²] ... (2)

Learn more about Kirchhoff's here:

https://brainly.com/question/30400751

#SPJ1

Colligative properties are those of solutions that are influenced by the volume of a nonvolatile solute dissolved in a solution but not by the nature of the solute. The correct option to this question is both b and c

When solute molecules are dissolved in a certain solvent, solutions are created as homogenous mixtures. These solutions have special characteristics that could be referred to as collaborative qualities. These include melting point depression, osmotic pressure, rising boiling point, and reducing vapor pressure.

These solute molecules have an impact on vapor pressure, freezing point, and boiling points.

For more information on colligative property kindly visit to

https://brainly.com/question/12538175

#SPJ4

Complete question :colligative

property depends on _____.

a. the identity of the solute

b. the concentration of the solution

c. the number of solute particles dissolved in the solution

d. both a and b

e. both b and c

720 watts much power is used by the refrigerator when operating at its rated voltage.

To calculate the power used by the refrigerator, we can use the formula:

Power = Voltage x Current

Given that the refrigerator is rated at 6 A at 120 V, we can substitute these values in the above formula:

Power = 120 V x 6 A

Power = 720 Watts

Therefore, the power used by the refrigerator when operating at its rated voltage is 720 Watts.

First, we need to understand the relationship between power, voltage, and current. The power used by an electrical appliance, such as a refrigerator, is calculated by multiplying the voltage across the appliance by the current flowing through it. This can be represented by the formula:

Power = Voltage x Current

The unit of power is the Watt (W), which is equal to one Joule per second. The voltage is measured in Volts (V), and the current is measured in Amperes (A).

In the given problem, we are told that the refrigerator is rated at 6 A at 120 V. This means that when the refrigerator is operating at its rated voltage of 120 V, it draws a current of 6 A. To find the power used by the refrigerator, we simply need to substitute these values in the formula for power:

Power = 120 V x 6 A

Power = 720 Watts

So, the power used by the refrigerator when operating at its rated voltage is 720 Watts. This means that the refrigerator consumes 720 Joules of electrical energy per second, or equivalently, 720 Watt-hours of energy per hour of operation.

It's worth noting that the power consumption of a refrigerator can vary depending on a variety of factors, such as the age and efficiency of the appliance, the temperature settings, and the frequency of use. However, the rated voltage and current provide a useful reference point for estimating the power usage of the refrigerator under normal operating conditions.

To know more about power please refer: https://brainly.com/question/28954434

#SPJ1