You launch a model rocket that has a mass of 1.5 kg.At a height of 300m,it is traveling at 125 m/s.what is the kinetic energy at this point

Answers

Answer 1

Answer:

zero

Explanation:

Because if the object is not in motion then it only posseses potential energy not kinetic energy


Related Questions

8. An electrical resistor immersed in a liquid produces 65.0 W of electrical energy for 120
specific heat capacity of the liquid in this temperature range. Assume that negligible h
O
O
O
2.51 x 10³ J/(kg. C°)
1.67 x 106 J/(kg C°)
2.02 x 104 J/(kg. C°)

Answers

The specific heat capacity of the liquid is 2.51 x 10³ J/kg⁰C.

Specific heat capacity of the liquid

The specific heat capacity of the liquid is calculated as follows;

Q = mcΔФ

where;

Q is quantity of heat c is specific heat capacitym is mass of the liquidΔФ is change in temperature = 22.54 - 18.55 = 3.99 ⁰C

c = Q/mΔФ

c = (65 x 120)/(0.78 x 3.99)

c = 2.51 x 10³ J/kg⁰C

The complete question is below:

An electrical resistor immersed in a liquid produces 65.0 W of electrical energy for 120 s. The mass of the liquid is 0.780 kg and its temperature increases from 18.55°C to 22.54°C. a) Find the average specific heat capacity of the liquid in this temperature range.

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The actual mass of a sheet of copy paper is 4.5 g. What must be the actual mass of a 1 cm² plece of copy paper?
Show your calculations.

Answers

The mass of 1 cm² piece of copy paper is 0.0072 g.

What is the area of a piece of paper?

Assuming the dimensions of a piece of paper is 21.0 x 29.7 cm

The area of the piece of paper = 21.0 * 29.7 = 623.7 cm²

Mass of 623.7 cm² = 4.5 g

Mass of 1 cm² piece of copy paper = 4.5/623.7 cm² = 0.0072 g

Therefore, the mass of 1 cm² piece of copy paper is 0.0072 g.

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A single-instance deployment of splunk enterprise handles:

Answers

A single-instance deployment of splunk enterprise handles; Indexing, Parsing, Input and Searching.

What is splunk enterprise?

Splunk Enterprise collects data from any source, including metrics, logs, stream network traffic, web servers, custom applications, social media and cloud services.

Functions of single-instance deployment of splunk enterprise

The following are the main functions;

IndexingParsingInputSearching

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Looking at the wave diagram which best describes the wave

Answers

Answer:

B describes the best ...

A football is kicked with an initial velocity of 10 m/s at an angle of 25 degrees. If it hits the ground 1.5s later, how many meters does it travel?

Answers

The distance travelled by the ball, given the data is 7.82 m

Data obtained from the questionInitial velocity (u) = 10 m/sAngle of projection (θ) = 25 degrees Time of flight (T) = 1.5 sAcceleration due to gravity (g) = 9.8 m/s²Range (R) = ?

How to determine the range

The range (i.e distance) travelled by the ball can be obtained as illustrated below:

R = u²Sine(2θ) / g

R = 10² × Sine (2×25) / 9.8

R = 10² × Sine 50 / 9.8

R = 7.82 m

Thus, the distance travelled by the ball is 7.82 m

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spurs"" are probably the result of ____.

Answers

Spurs are probably the result of self-sustaining star formation.

What is the formation of gaseous spurs in spiral galaxies?

The gigantic form of the magnificent doppelganger spiral patterns that spiral outward from the galactic cores gave spiral galaxies their name. These light arms of spiral galaxies are frequently seen in optical pictures to be speckled with bright star-forming areas at regular intervals.

Smaller structures spread forth and rearward into the interarm area from each major spiral arm. Spiral-arm also known as spurs are the name given to these substructures. Sometimes the spurs are also filled with star-forming clusters. As a consequence, we may draw the conclusion that spurs most likely emerge from self-sustaining star formation.

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A projectile is launched at an angle of 29 degrees above the horizontal with an initial velocity of 36.6 at an unknown height.
The magnitude of the vertical velocity upon returning to its original, unknown height is _____ m/s.

Answers

The vertical velocity of the projectile upon returning to its original is 17. 74 m/s

How to determine the vertical velocity

Using the formula:

Vertical velocity component , Vy = V * sin(α)

Where

V = initial velocity = 36. 6 m/s

α = angle of projectile = 29°

Substitute into the formula

Vy = 36. 6 * sin ( 29°)

Vy = 36. 6 * 0. 4848

Vy = 17. 74 m/s

Thus, the vertical velocity of the projectile upon returning to its original is 17. 74 m/s

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We see different phases of the Moon on Earth. How are the phases of the Moon proof of
the way we see the Moon?

Answers

Answer:

The Moon itself does not generate light

Explanation:

The Moon itself does not generate light; it is lit up by the Sun. As the Moon orbits the Earth, the portion of illuminated Moon that we see changes – giving rise to the phases of the Moon. Starting at the New Moon phase, the Moon appears to expand in illumination.

how are magneted fields generated?​

Answers

Answer:

Moving electrons

Explanation:

The magnetic force is a force that is perpendicular to the direction of a moving charge. When two charges are not moving, the electrostatic force is along the line joining them (or the relative spacing). The effects of the static (Coulomb) force change direction due to the finite speed c, giving birth to a 'component' normal to the direction of the relative motion of the two charges (very much like the rain changing direction when you run or drive). When the speed of light c is reached, all electrostatic force becomes magnetic. When the relative separation distance is equal to zero, all forces become electrostatic. This is akin to linear acceleration (and the forces associated with it) shifting direction from being along the motion to normal to the motion as the route becomes totally round, giving birth to centrifugal forces. The magnetic force may be calculated in its general and relativistic forms using just the delayed potential form of the static Coulomb force. R3tarded potential Whereas two non-moving electrons repel electrostatically, two moving electrons can either repel or attract magnetically depending on their motion direction. When the speed of two electrons approaches c, they will generally attract with minimal likelihood of repulsion. It is also stated here that for some combinations of relative velocity and separation distances, the repulsion force can equate the attraction force, resulting in an asymptotic freedom condition in which the electrons are free from these two opposing forces. The electron possesses an inherent magnetic field, which may be mathematically represented as the outcome of a moving charge. The value and radius of the motion (the loop area) to form the magnetic dipole moment p=i a = (e v) an are not known as separate values, but only as a product p(the magnetic dipole moment), where e,v,a are the electron charge, speed, and motion loop area, respectively. The total of the magnetic field's effects equals zero for two electrons at rest with opposing polarity, known as paired electrons. This state is stable in matter because the total energy is lower. The magnetic field of a permanent magnet is the consequence of the chemical composition locking all of the lone electrons in a permanent magnetic material in their place. In a typical magnetic material, such as iron, such electrons only unify their pole orientation due to the action of an applied magnetic field. That is why adding an iron core to a coil produces a larger magnetic field. In diamagnetic materials, such alignment occurs (also governed by the chemical composition), resulting in repulsion and levitation rather than typical attraction. The velocity of electrons in wire currents is very modest, as is the generated magnetic force, because the phenomena is of second order (depends on the change of the separation distance rather than the distance itself as in the electrostatic case). However, due to the massive number of electrons involved (Avogadro number size), the magnetic force can become quite strong. The impact is amplified if you use many loops. This is used to power a large engine, for example. It is important to note that gravity is far less than magnetism, yet it may be extremely big owing to the number of particles involved—especially because gravity is always naturally orientated for attraction alone, and there is no cancellation of the gravity field by altering orientation.

The event in the life of a star that begins its expansion into a giant is Group of answer choices almost all the hydrogen in its core that was hot enough for fusion has been turned into helium as much as 90% of the star explodes violently the core reaches a temperature of ten million degrees the star's internal structure reaches equilibrium for the first time in its life

Answers

The event in the life of a star that begins its expansion into a giant is that almost all the hydrogen in its core that was hot enough for fusion has been turned into helium.

What is a fusion reaction?

A fusion reaction is defined as the type of nuclear reaction whereby two or more atomic nuclei combine to form a heavier nucleus.

The stars are being transformed into giants through fusion reaction.

A higher amount of hydrogen is found in the core of the star which is being use up in the fusion reaction to form helium.

When the hydrogen in the centre of a star runs out, the star begins to use hydrogen further out from its core. This causes the outer layers of the star to expand and cool.

Therefore, the event in the life of a star that begins its expansion into a giant is that almost all the hydrogen in its core that was hot enough for fusion has been turned into helium.

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a balloon of total mass 2200 kg hovers stationary at a height of several meters above the ground. a mass of 200 kg is released from rest from the balloon.calculate the acceleration of the balloon as it starts to rise.

Answers

Answer:

1 m/s²

Explanation:

added in the picture

Describe the mass of the reactants and products given in the balanced chemical equation

Answers

When the chemical response is balanced, the mass of the reactant is equal to the mass of the reactant.

Grounded on the law of Conservation of Mass

We balance the chemical equation since tittles aren't destroyed in the process and the mass is conserved. The mass of the reactant is equal to the mass of the product. No new titles are created or destroyed, there was only rearrangement or regrouping of tittles. This also means the number of titles of rudiments in both the product and reactant is equal.

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all white dwarfs have masses in a small range—from about 0.5 to almost 1.4 malchemist sun symbol. why? (select all that apply.)

Answers

A white dwarf cannot support its own weight by its degenerate pressure if its mass is greater than 1.4 solar masses.

What are white dwarfs?

White dwarfs are stellar core remnant composed mostly of electron-degenerate matter.

White dwarf is very dense due to its large mass and smaller volume.

Reasons for comparable mass of white dwarfs and SunStars with main sequence masses less than about 0.5 solar masses cannot ignite the helium fusion required to become white dwarfs.A white dwarf cannot support its own weight by its degenerate pressure if its mass is greater than 1.4 solar masses.

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Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms. please select the best answer from the choices provided t f

Answers

The statement "Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms" is absolutely false.

What is monsoon?

Monsoon may be characterized as a seasonal transformation in the direction of the predominant, most potent, currents of a region. It blows from cold to warmer regions of the geographical locations.

Thunderstorms basically originated identically with monsoons more frequently. Monsoon involves sudden and gradual rainfall, extreme wind, and a drop-down in temperature.

The occurrence of monsoon is fixed at different geographical locations, but the occurrence of thunderstorms will not be definite or predominantly known.

Thus, the statement "Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms" is absolutely false.

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Answer:

False

Explanation:

The equation to calculate density is D = m/v. For a liquid substance, which item increases as heat is applied?

volume
density
mass
density and volume

Answers

Answer:

See below

Explanation:

Things generally expand when heated ....so volume increases while mass remains the same .....this will cause the value of density to decrease  

a traffic light at an intersection is hanging from two wires of equal length making angles of 10 degrees below the horitzontal. The traffic light weights 2500 N. What are the tensions in the wires

Answers

The tensions in the wires at the given angle of inclination is determined as 434.1 N.

Tension on the wire

The tension in the wires is calculated as follows;

T = Wsinθ

where;

T is tension in each wireW is weight of the traffic light

T = 2500 x sin(10)

T = 434.1 N

Thus, the tensions in the wires at the given angle of inclination is determined as 434.1 N.

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A truck going 70 m/s crashes in to a wall and comes to a complete stop in .05
seconds. What is the acceleration of the truck?
500 m/s²
O-1400 m/s²
-2000 m/s²

Answers

Answer:

-1400 m/s^2

Explanation:

Change in velocity / change in time  = a

    -  70 / .05 =  -1400 m/s^2

A car traveling along the highway needs a certain amount of force exerted on it to stop it in a certain distance. More stopping force is required when the car has:.

Answers

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

This state that the work done on a body by a net force is equal to the change is kinetic energy of the body

Answers

Answer:

that's true The work-energy theorem states that

a student taps the side of a stainless steel can containing water, making some sound waves travel from the stainless steel to the water. Sound waves travel at 1500 m/s in water and at 550 m/s in stainless steel. Explain how the changes in velocity, frequency and wavelength are related

Answers

Velocity is directly proportional to wavelength and frequency.

How the changes in velocity, frequency and wavelength are related?

There is direct relationship present between velocity and frequency as well s wavelength. If velocity increases, wavelength and frequency are also increase and vice versa. The higher the speed of a sound, the greater its wavelength for a given frequency.

So we can conclude that Velocity is directly proportional to wavelength and frequency.

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What is a specific heat capacity?

Answers

Answer:

C.

Explanation:

Specific heat capacity is defined as the amount of heat energy needed to increase the temperature of 1kg of a substance by 1°C.

The formula for specific heat capacity is as follows:

[tex]C = \frac{Q}{m \Delta T}[/tex]

where:
C   → specific heat capacity

Q   → heat energy required

m   → mass of the object

ΔT → change in temperature.

Science question! helppppp

Answers

Let's take this problem step-by-step:

What does this problem want to solve:

 ⇒ find two pendulums that will swing back and forth in the least amount

     of time

Therefore:

 ⇒ must find the equation that calculates that period or swing time of a

     pendulum

     Equation: [tex]T = 2\pi \sqrt{\frac{L}{g} }[/tex]

L: length of the pendulumg: gravitational acceleration

Based on the equation:

  ⇒ the longer the string is ⇒ the greater the swing time

Thus:

 ⇒ pendulum Y and Z will have the least amount of swing time

Answer: (B)

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Find the maximum energy stored in the spring bumpers

Answers

The maximum energy stored in the spring bumpers is given as ¹/₂kx².

Maximum energy stored in a spring

The maximum energy stored in a spring is given by the following equations;

E = ¹/₂kx²

where;

E is the energy stored in the springk is spring constantx is extension of the spring

Thus, the maximum energy stored in the spring bumpers is given as ¹/₂kx².

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If you double the current through a resistor, by what factor does the power dissipated by the resistor change?.

Answers

If you double the current through a resistor, the power dissipated by the resistor change by factor of 4.

What is electric current?

The stream of positive charges which flow from the positive terminal to the negative terminal of the battery attached in a circuit.

Power dissipated through a resistor is related to current as

P  =I²R

When the current is doubled, the new power will be

P' = (2I)²R

P' = 4 I²R

P' = 4P

Thus, the power change by the factor of 4.

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The position of a train at a time 2 seconds is 100m from a station. Suppose its velocities at the end of 2 seconds and at the end of 10 seconds are 5m/s and 20m/s respectively. Find the position of the train at the end of 10 seconds.

Answers

vf²=vi²+2ad

5²=0+2a.100

a=0.125 m/s²

20²=0+2 x 0.125 x d

400 = 0.25d

d = 1600 m

7. Give reason: a. The motion of a bu's starting from a bus station is an example of non- uniform motion. how


Answers

Answer:

See below

Explanation:

It is a lot of stop and go....various speeds and accelerations .

What is nuclear power

Answers

Answer:

D. All of the statements describe nuclear power

What is NUCLEAR POWER?

➡️ is the use of nuclear reactions to produce electricity.

➡️ it can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions.

Hope it helps

Examples of kinetic theory of convection ​

Answers

Answer:

example of kinetic theory include brownian motion the random movement of the particles because the consolation with the air molecules and how gas is behave boiling and j l also this cyclone explain how temperature affects the

hi my name is bob the minion

An extraterrestrial civilisation lives on a planet with a very elliptical orbit. Additionally, thousands of large asteroids orbit their solar system. The civilisation uses the light from their home star to count the number of asteroids in the direct line between the star and their planet. For a first measurement, they count the asteroids for 60 days and detect 1000 objects. Several months later, they start a second measurement: This time, they count for 80 days. How many asteroids will they detect during the second measurement? Explain why. (Note: Assume that the asteroids are homogeneously distributed in their solar system.)





i will mark as a brainiest please help me as soon ​

Answers

For Kepler's third law this can be solved as normal ratios

1000/60=x/80100/6=x/806x=8000x=8000/6x=1333.34asteroids

The number of asteroids which will be detected during the second measurement is 1333.34.

What is an Asteroid?

These are referred to objects which revolve round the sun and are characterized by their small rocky shape.

Kepler's third law can be used to solved it using normal ratios

1000/60=x/80

100/6 = x/80

6x = 8000

x= 8000/6

x=1333.34asteroids

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View the graph of sun hours in a city.
Average Monthly Sun Hours in Addis Ababa, Ethiopia
300 hrs
150 hrs
0 hrs
Jan
Feb
Mar Apr May
Jul Aug Sep
Oct Nov
Dec
Jun
Month
It can be predicted that in the following year, this city can expect the hours of sunshine to significantly increase after
which month?
January
May
July
September

Answers

It can be expected in this city that the hours of sunshine will significantly increase after the month of July

What is the trend in the hours of monthly sunshine in Addis Ababa?

The monthly hours of sunshine in the city is the average of daily sunshine in a month.

The trend as seen on th graph shows that monthly hours of sunshine is maximum between the months of December and January. Afterwards the monthly sunshine hours decreases.

Therefore, it can be expected in this city that the hours of sunshine will significantly increase after the month of July.

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which type of drug classification are addictive drugs that have an extremely relaxing effect? What is not a computer software?a. web browserb. powerpointc. motherboard According to midsummer night's dream explain the rights between egeus and hermit [tex]10 ^{k - 2} = 100[/tex]find the value of k Who tell stories with their own words and in their own voice the stories are _____.A always repeated B often misinterpretedC more believable D less relatable Practice BStudy the graph below and answer the following questions.10080No. of Face Shields Sold604020Face Shields Sold by Ms. LopezMonday Tuesday WednesdayThursdayDays1. On what days did she sell the same number of face shields?2. On what day's did she set more than 60 face shields?3. How many face shields did she sell in 5 days?4. How many more face shields did she sell on Thursday than on Friday?What inference can you make if Ms. Lopez will sell face shield the whole week?Friday Triangle PQR has right angle Q. If sin R = 4/5what is the value of tan P? Which of the data sets below has a range of 18? Select all that apply.A) 37, 34, 22, 28, 19, 25B) 34, 22, 18, 19, 31, 33C) 95, 79, 83, 88, 81, 99D) 17, 26, 17, 18, 26, 31E) 55, 43, 49, 61, 58, 54 A doctor has a patient blow on one side of a U-shaped tube that is partially filled with water and has a ball floating on the other side, as shown in the image below. If the ball rises with a force of 150 N, what pressure did the patient apply to his side of the tube?A.0.15 Pab.150Pac.100,000 PaD.150,000 Pa the 3kg object in figure is released from rest at height of on a curved frictionless ramp. at the foot of the ramp is a spring of force constant 400N/m. the object slides down the ramp and into the spring,compressing it a distance x before coming momentarily to rest.a) find xb) describe the motion of the object (if any) after the block momentarily comes to rest? WHAT DID THE PHILOSPOHES HOPE TO ECOMPLISH if f(x)=-3x-5 and g(x)=4x-2 find (f-g) (x) need help on this question Answer all the questions. 1 The first three terms in a sequence of numbers, T1, T2, T3,... are given below: (a) T=1+3=4 T=4+5=9 T3=9+7=16 Find T4. Answer T4= Why might a poet use long lines?OA. To give the poem a sense of powerB. To speed up the pace of a poemOC. To provide a lot of informationOD. To draw attention to parts of the poem 5. Which of the following declined duringthe Renaissance?A. the power of individual monarchsB. the power of the churchC. the number of large citiesD. the number of explorers method to prevent school violence at the social level If the distance between two objects is cut in half, what happens to thegravitational force between them?A. It decreases to 1/2 its original magnitude.B. It decreases to 1/4 its original magnitude.OC. It increases to 4 times its original magnitude.D. It increases to 2 times its original magnitude. ASAP NOW! PLSS! I WILL MARK 5 STARS! PLSSS! thank you!! At noon, the temperatures in Portland, Maine and Phoenix, Arizona had opposite values. The temperature in Portland was lower than in Phoenix. What was the temperature in each city? Explain your reasoning. A 208.1 mL sample of gas exerts 574.6 mm Hg pressure at 44.4 C. What pressure does it exert at 68.1 C if the volume expands to 401.5 mL?a. 320b. 457c. 190d. 917