A truck traveling at a velocity of 33m/s comes to a halt by decelerating at 11m/s^2. How far does the truck travel in the process of stopping. identify known variables such as V, V0, a, t, and delta x.

Answer:

Scalar quantities are defined by a magnitude with no applicable direction. In contrast, vector quantities must have both magnitude and direction of action. Some common scalar quantities are distance, speed, mass, and time. Some common vector quantities are force, velocity, displacement, and acceleration.

Explanation:

❤❤❤❤❤

The weather that is least likely to occur when a cold air mass moves in and overtakes a warm front in the presence of a low-pressure system is clear skies ( D ).

When a cold air mass moves in and overtakes a warm front in the presence of a low-pressure system, it is called as occluded front. During this the colder air is pushed beneath the warmer air. Depending on the direction of occlusion, it can be of two types of of occluded fronts such as

During occluded fronts the possible weather conditions are

Therefore, the weather that is least likely to occur with these conditions is clear skies ( D ).

To know more about occluded front

https://brainly.com/question/10758912

#SPJ1

Answer:

too much :(

Explanation:

\overline{a} = \frac{v - v_0}{t} = \frac{\Delta v}{\Delta t}

\overline{a} = average acceleration

v = final velocity

v_0 = starting velocity

t = elapsed time

Answer:

a = Δv⁄t.

Explanation:

Answer:

b) The gravitational pull will be weak.

Explanation:

Less mass requires less force. Gravity or gravitational pull is a force. In order for you to stay in place and not go through the ground, however, you require something to pulling you away from the Earth. That's why we have air resistance.

To help Jill see objects clearly at a distance of 25.0 cm, we need to calculate the refractive power of the contact lenses. We'll use the lens formula:
1/f = P = 1/d_o + 1/d_i
where f is the focal length, P is the refractive power, d_o is the object distance (25.0 cm), and d_i is the image distance.

First, let's find the image distance (d_i) without the contact lenses. Since Jill can see objects clearly at 80.0 cm, that will be the image distance:
1/f = 1/25.0 + 1/80.0
1/f = 0.04 + 0.0125
1/f = 0.0525
f = 1/0.0525 ≈ 19.05 cm
Now, let's find the refractive power of the contact lenses that will allow Jill to see objects clearly at a distance of 25.0 cm. We'll adjust the object distance to 25.0 cm:
1/f_contact = 1/25.0 - 1/19.05
1/f_contact ≈ 0.04 - 0.0525
1/f_contact ≈ -0.0125
f_contact ≈ -80 cm

Since the focal length of the contact lens is negative, it indicates that Jill needs a converging lens to correct her farsightedness. The refractive power of the contact lenses required is:
P_contact = 1/f_contact
P_contact = 1/-80
P_contact ≈ -0.0125 diopters
So, Jill will need contact lenses with a refractive power of approximately -0.0125 diopters to see objects clearly at a distance of 25.0 cm from her eyes.

To know more about contact lenses visit:-

https://brainly.com/question/10921004

#SPJ11

Answer:

Stars are very massive stellar objects, which means that they have a very intense force of gravity. This is the first of the forces entering this "war".

In addition to that, due to the force of gravity that drives the star to contract, the process known as fusion occurs (the union of atoms of one element that results in another element, hydrogen fuses in stars to produce helium). The fusion created in the high temperatures of the center of the star generates an enormous amount of energy (which causes the stars to shine) and a force going outward of the star counteracting gravity, this is the second force in the "war" .

In a stable star these two forces (gravity going inward and the pressure created by the fusion going outward ) are in balance, preventing the star from exploding or collapsing. But eventually the star exhausts its "fuel" (hydrogen atoms) to produce fusion within it (although stars also fuse helium and other heavier elements, but once the hydrogen is finished the star is near its end), which decreases the force outward from the star, making the force that wins this battle to be the force of gravity.

When the force of gravity wins, the star collapses on itself and from here, depending on the star's mass, several things can happen, such as the star becoming a white dwarf, a supernova, even a black hole.

The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces -

Stars are very massive stellar objects and remain the longest in the stage when it is burning Hydrogen into Helium.

Thus,

The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces -

Learn more:

https://brainly.com/question/13172138

(a) The molecule that contains a C3 axis but no σh plane is PBr3.
(b) The molecule/ion that contains both a C3 axis and a σh plane is [SO4]2-.

(a) PBr3 (Phosphorus tribromide) has a C3 axis of rotational symmetry but does not have a σh (horizontal mirror) plane. A C3 axis means that the molecule can be rotated by 120 degrees around an axis and still appear the same.

(b) [SO4]2- (Sulfate ion) has both a C3 axis of rotational symmetry and a σh (horizontal mirror) plane. The C3 axis allows for a 120-degree rotation, and the σh plane bisects the molecule, reflecting one half onto the other.

To learn more about molecule
https://brainly.com/question/30337264
#SPJ11

Answer:

i dont really know, sorry

Explanation:

The evidence for the transformation of chemical energy into electrical energy in the process of making a call from cell phone A to cell phone B is shown in the diagram by the presence of the battery.

As mentioned, cell phones are powered by batteries that produce the electrical energy used to send or receive a call. The battery is the source of chemical energy that is converted into electrical energy, which powers the phone's internal circuitry and enables it to encode the call and send it through the air to the base station.

The transformation of chemical energy into electrical energy is a crucial process that enables the functioning of many electronic devices, including cell phones. Without this conversion, it would not be possible to power the internal circuitry of the phone, and it would not be able to send or receive calls. Therefore, the presence of the battery in the diagram is strong evidence that chemical energy is being converted into electrical energy to power the call from cell phone A to cell phone B.

Learn more about energy here:

brainly.com/question/19131683

#SPJ11

Part 1: The number of pathways in a circuit determines the possible routes for electric current to flow.

There are maximum of five pathways in this circuit, depending on its complexity and the arrangement of components.

Part 2: Determining whether the circuit is series or parallel requires more information.

In a series circuit, components are connected in a single path, and the current flows through each component sequentially.

If the circuit has only one pathway (zero or one pathway), it suggests a series circuit.

However, if the circuit has multiple pathways (two or more pathways), it indicates a parallel circuit.

To conclusively determine the circuit's nature, we need to analyze the circuit diagram or obtain additional details regarding the component connections and their interactions.

For such more questions on electric current

https://brainly.com/question/30033550

#SPJ8

Answer:

Abiotic referfers to non-living and biotic factors are living or once living

Explanation:

Answer:

Mercury is the only one in liquid state at room temperature

The efficiency of the machine is ξ= 50%.

Given - 20 joules and 30 joules are input and output work of the system respectively.

To find the efficiency of the system.

principle ;- Efficiency represents the capability of a system to do work .

Mathematically , efficiency has an equation that relates the input and output work and accurately provides the result.

Formula  -   ξ= οₙ/Iₙ x 100

οₙ = output work , Iₙ= input work

Calculations :-  ξ= { 10/20 }x 100

ξ= 50%

Result- The Efficiency of the machine is 50%.

To learn more about efficiency -

https://brainly.com/question/14358208

#SPJ1

A material's index of refraction is inversely proportional to its light speed. The speed of light in a vacuum is equal to the index of refraction (n).

Relationship between index of refraction and speed of light :

Quantitative Law of Refraction:

Snell's Law n₁ Sinθ₁ = n₂ sinθ₂.

n = 1, for a vacuum.

The slower the light travels, the higher the refractive index, which in turn causes the material to change in the opposite direction of the light. This means that lenses made of materials with a higher refractive index can bend light more and have a lower profile.

There is nothing that can travel faster than 300,000 km/s (186,600 miles/s). That speed can only be reached by massless particles, like photons, which make up light. Because it would require an infinite amount of energy to accelerate any material object to the speed of light, it is impossible to do so.

To learn more about index of refraction here

brainly.com/question/14760207

#SPJ4

Answer: B - Both electric and magnetic fields

Explanation: Ap*x verified just did the test and got it correct, answer is right infront of me at the moment

Answer: B

Explanation: just took the quiz on AP3X

Electronic sensors with a digital output interface can switch AC or DC without the specific polarity requirements for DC circuits.

Electronic sensors with a bidirectional output interface can switch AC or DC without the specific polarity requirements for DC circuits. These sensors can handle both types of currents, making them versatile for various applications.

A device that detects a physical property of interest (such as heat, light, or sound) and converts it into an electrical signal so that it may be measured and used by an electrical or electronic system is known as an electrical sensor, also known as an electronic sensor.

The physical activity that needs to be monitored is converted by a sensor into its electrical counterpart, which is then processed so that the electrical signals may be delivered and further processed with ease. The sensor can emit a binary value indicating whether or not an object is present or a digital or analogue value indicating when a measurement value has been attained.

To know more about Electronic sensors click here:

https://brainly.com/question/10106497

#SPJ11

Answer:

the answers are 2, 4, and 5.

Explanation:

Answer:

(R=6. 4×106m)

Explanation:

The height above the surface of earth at which acceleration due to gravity is half the acceleration due to gravity at surface of earth

Explanation:

acceleration due to gravity at surface of earth is (R=6. 4×106m)

hope this answer helps you

The time needed to generate an energy of 456 J using a power of 76 W is 6.0 seconds.

Power is the quantity of energy transferred per unit time. It can be expressed as;

Power = energy / time

Given the data in the question;

To determine the required time, plug the given values into the formula above and solve for t.

Power = energy / time

Time = energy / power

Time = 456kgm²/s² / 76kgm²/s³

Time = 6.0s

Therefore, the required time is 6.0 seconds.

Learn more about energy: brainly.com/question/5144470

#SPJ1

Answer:

what is the question ? That is only a statement

Answer:1m

Explanation:

2n=0.4m

5n=?

5n×0.4/2n=1m

Answer:

80 Joules.

Explanation:

Given that a 20 kg sled stars at the top of a hill which is 10 m above the bottom and slides a distance of 50 m, ending at the bottom of the hill with a speed of 8 m/s. During the slide, the work done by gravity is about ?

The parameters given are:

Mass M = 20 kg

Height h = 10 m

Velocity V = 8 m/s

The workdone by gravity will be equal to the total energy

At the bottom of the hill, the total energy will be equal to the maximum kinetic energy.

Maximum K.E = 1/2mv^2

K.E = 1/2 × 20 × 8

K.E = 80J

Therefore, the workdone by the gravity is equal to 80 Joules.

Answer:

Explanation:

The speed of the car can be found by using the formula

where

a is the acceleration

v is the speed

t is the time

From the question we have

v = 10 × 25

We have the final answer as

Hope this helps you

Answer:

the correct answer is False

Explanation:

i hope its right

Fourier's Law of Heat Conduction:

1. Heat flows through things more when they are hotter.

2. Heat flows more easily through materials that are hotter and thinner, or have better ability at letting heat through.

3. Heat doesn't flow through things as much when they are thicker or not good at letting heat through.

Answer:

.8215 MJ <- question is saying its hard for heat to go thru a thick brick wall <- thats why they are great to make homes with <- in winter brick homes stay warm!

Explanation:

Heat Flow Calculation.

The brick wall (of thermal conductivity 0.32 W/m · ◦ C) of a building has dimensions of 2.7 m by 4 m and is 11 cm thick. How much heat flows through the wall in a 18.4 h period when the average inside and outside temperatures are, respectively, 11◦C and 7◦C? Answer in units of MJ.

To calculate the heat flow through the wall, we can use Fourier's law of heat conduction, which states that the heat flow through a material is proportional to the temperature difference across it and inversely proportional to its thickness and thermal conductivity:

Heat flow (Q) = (thermal conductivity) x (area) x (temperature difference) / (thickness)

Area = length x width = 2.7 m x 4 m = 10.8 m^2

Next, we need to calculate the temperature difference across the wall:

Temperature difference = inside temperature - outside temperature = 11◦C - 7◦C = 4◦C

Now we can calculate the heat flow through the wall:

Q = (0.32 W/m · ◦C) x (10.8 m^2) x (4◦C) / (0.11 m) = 125.45 W

To convert the heat flow to energy, we need to multiply by the time period:

Energy = Power x Time = 125.45 W x (18.4 h x 3600 s/h) = 821503.68 J

Finally, we convert Joules to MegaJoules:

Energy in MJ = 821503.68 J / 1,000,000 = 0.8215 MJ

Therefore, the heat flow through the wall over an 18.4 hour period is 0.8215 MJ.

The formula used to calculate the heat flow through a material is called Fourier's law of heat conduction. It is given by:

Heat flow (Q) = (thermal conductivity) x (area) x (temperature difference) / (thickness)

The formula used to convert power to energy is:

Energy = Power x Time

In this case, we used the unit of Watts for power and the unit of Joules for energy.

1. Insulation reduces heat flow: Insulation is a special material that helps stop heat from flowing through walls, ceilings, and floors.

2. Temperature difference: When it's colder outside than inside, heat tries to escape from the warm house to the cool outdoors.

3. Insulation slows down heat flow: But when a house is insulated well, the insulation slows down the heat flow, making it harder for heat to escape.

4. Factors affecting heat loss: The amount of heat lost from a house depends on things like the thickness of the walls, the type of insulation used, and the difference in temperature between inside and outside.

5. Using Fourier's law: Engineers and architects can use a special math formula called Fourier's law to figure out how much heat is likely to escape from a house under different conditions, and use that information to decide on the best insulation and building materials to use to save energy.

ChatGPT

Messages travel to and from the brain to other parts of the body through the spinal cord. Thus, brain and spinal cord works together and option A is the correct answer.

The spinal nerves connect the brain to the nerves in the major part of the body. Other nerves connect the brain to the eyes, ears, and other parts of the head directly. This network of nerves relays messages between the brain and the rest of the body.

The brain and spinal cord comprise the central nervous system. The brain is in charge of how we think, learn, move, and feel. The spinal cord relays messages from the brain to the nerves that run throughout the body.

Therefore, brain and spinal cord works together as messages travel to and from the brain to other parts of the body through the spinal cord.

To learn more about brain and spinal cord, click here:

https://brainly.com/question/5430113

#SPJ6

Answer:

X0   is the initial position of the object

V0 t   is the displacement of the object in time t due to its initial velocity

1/2 a t^2   is the displacement of the object in time t due to its acceleration

Adding the 3 terms (being careful with signs) gives the final position of the object at time t