In a standard gas grill propane tank, there is approximately 4,579 mL of propane (C3H8). At a temperature of 55˚C, the tank has a pressure of 1,798 kPa. The tank is cooled to 25˚C and the pressure reduced to 1,025 kPa. What will the new volume be?

Answer:

C

Explanation:

Velocity = velocity (initial) + acceleration*time.

More time - higher velocity.

The direction of their (joint) velocity after the collision is to the northeast.

To solve this problem, we need to use the conservation of momentum principle.

In this case, the truck and car form a closed system, and we can use the following equation to solve for their joint velocity:

(m1 * v1) + (m2 * v2) = (m1 + m2) * v

where:

First, we need to break down the initial velocities of the truck and car into their x and y components.

For the truck:

vx1 = 0 m/s (moving north)

vy1 = 26.0 m/s (moving north)

For the car:

vx2 = 13.0 m/s (moving east)

vy2 = 0 m/s (not moving in the y-direction)

Next, we need to find the total x and y momentum of the system before the collision.

Px = m1 * vx1 + m2 * vx2

= (3520 kg) * 0 m/s + (1480 kg) * 13.0 m/s

= 19240 kg*m/s (to the right)

Py = m1 * vy1 + m2 * vy2

= (3520 kg) * 26.0 m/s + (1480 kg) * 0 m/s

= 91520 kg*m/s (moving north)

The total momentum of the system before the collision is therefore:

P = √(Px^2 + Py^2)

= √((19240 kgm/s)^2 + (91520 kgm/s)^2)

= 97397.59 kg*m/s

Now we can use the conservation of momentum principle to solve for the joint velocity of the truck and car after the collision:

(m1 * v1) + (m2 * v2) = (m1 + m2) * v

(3520 kg * 0 m/s) + (1480 kg * 13.0 m/s) + (3520 kg + 1480 kg) * v = 97397.59 kg*m/s

v = (3520 kg * 0 m/s + 1480 kg * 13.0 m/s) / (3520 kg + 1480 kg)

= 8.60 m/s (to the northeast)

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F b = (m * v) / t is the formula for the amount of average net force needed to reach a specific velocity.

Average speed is determined by dividing the total distance you travelled by the total time, whereas average velocity is determined by dividing your displacement (a vector pointing from your initial position to your end position) by the whole time.

The following formula can be used to determine the average net force, F b, necessary to reach a specific velocity, v:

F_b = (m * v) / t

Its net force, which is inversely related to its mass, is:

a = F_net / m

The final velocity can be related to the acceleration and time using the following kinematic equation because the fist's velocity is attained from rest:

v = a * t

When we enter the acceleration expression from Newton's second law into this equation, we obtain:

v = (F_net / m) * t

To solve for the net force by rearranging this equation, we obtain:

F_net = (m * v) / t

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The sudden cessation of energy generation causes the core to collapse and the star's outer layers to collapse onto the core.

What is core collapse?

Core-collapse supernovae are spectacular explosions that occur at the end of a big star's thermonuclear evolution, giving rise to neutron stars and black holes. They are among the most intense occurrences in the universe, play an important role in the synthesis and distribution of chemical elements, drive the development of new stars, and are closely tied to an enigmatic subclass of gamma-ray bursts. As a result, astro-physicists are keen to learn which stars burst as supernovae, what physical mechanisms produce the explosion, and what observable effects result from these cataclysmic events.

When the explosion wave generated in the optically obscured stellar centre eventually reaches the surface layers of the star, the visual supernova outburst begins.

The fire ceases because iron does not work as a fuel. The sudden cessation of energy output leads the core to collapse and the star's outer layers to collapse onto the core. The infalling layers compress so quickly that they 'bounce' off the iron core at near-lightspeed.

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62. 8 nm is the wavelength in nanometers of light when the energy is 1. 91 × 10^6 j for a mole of photons. A periodic wave's wavelength is its spatial period, or the length over which its shape repeats.

It is the distance between two neighbouring wave points that belong to the same phase, such as two adjacent crests or troughs are called wavelength.

Light sources known as single-photon sources release light in the form of individual photons or particles. They differ from thermal light sources like incandescent light bulbs and coherent light sources like lasers. E=hc/, the photon's energy.

E=hc/λ = 1.91 × 10^6

J = (6.626*10^-34) (3.00*10^8) / λ

λ= (6.626*10^-34) (3.00*10^8) / 1.91 × 10^6 J

λ= 1.0410^-31 10^-9 *6.022*10^23 = 62. 8 nm

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Answer:

C. not enough mass

Explanation:

Trust me bro

Product or Satisfaction rating using number of stars is a a qualitative or categorical variable which falls under the Ordinal variable classification.

Therefore, use of star rating to depict online customer satisfaction is a categorical Ordinal variable.

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Answer:

a=2ms⁻²

Explanation:

v=8ms⁻¹   u=2ms⁻¹   t=3secs

a=\(\frac{v-u}{t\\}\)

a=\(\frac{6}{3}\)

a=2ms⁻²

Answer:

a=2ms-2

Explanation:

hope this helped

Answer:

c. Y

Explanation:

Newton's third law of motion states that action and reaction are equal and opposite. Hence for every action, there is an equal and opposite reaction.

Considering the system of forces shown in the image, W and Y are  opposite forces. When the driver slams on the brakes, he will be pushed forward towards the windscreen. The force Y exerted by the seat belt keeps him on the drivers seat by moving him backwards towards the seat.

The speed of the car is 55.2 m/s.

We can define speed as the ratio of distance to time. We know that the question states the car is one lap behind the lead race car when the lead car has 52 laps to go in a race.

If 1 lap =  1.34km or 1340 m

Distance covered =   1340 m * 52 = 69680 m

Time = 69680 m/ 56.3 m/s

= 1237.7 s

Given that the second car is one lap behind;

51 *  1340 m = 68340 m

Speed =  68340 m/1237.7 s

= 55.2 m/s

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Answer:

Explanation: The density of gas differentiates all the varieties of gas present in the atmosphere.

HYDROGEN- it is a lighter gas having a lesser density.

For example, a hydrogen balloon displaces the air around it thus making it rise.

CARBON DIOXIDE: It is a denser gas as it makes the balloon heavier than the air pressure around it thus making it sink.

I hope the explanation was helpful. :)

Answer:

vega the first one

pb

p

Explanation:

Answer: The rock's speed as it left your hand was 8.8 m/s.

Explanation: The system is the rock and the Earth. The initial state is the rock at rest in your hand 2.8 m below the Frisbee. The final state is the rock hitting the Frisbee at a speed of 4.0 m/s.

Using conservation of energy, we know that the initial potential energy of the rock-Earth system is transformed into both kinetic energy and potential energy at its maximum height. Therefore, we can use the conservation of energy equation:

potential energy (initial) = kinetic energy (final) + potential energy (final)

mgh = 1/2mv^2 + mgh

where m is the mass of the rock, g is the acceleration due to gravity, h is the height that the rock has been raised, and v is the velocity of the rock.

We can solve for the initial velocity by rearranging the equation:

v = sqrt(2gh + v^2)

Plugging in the values, we get:

v = sqrt(2 * 9.81 * 2.8 + 4^2)

v ≈ 8.8 m/s

Therefore, the rock's speed as it left your hand was 8.8 m/s.

Answer:

D

Explanation:

Contrary to answers a, b, and c, volcanic rocks, like basalt, andesite, and rhyolite, are fine-grained which are extrusive igneous rocks.

Intrusive rocks, also called plutonic rock, are coarse-grained and cool slowly without ever reaching the surface. While intrusive igneous rocks do solidify in the earth they do eventually become exposed by erosion.

I hope this helps

Correct me if I'm wrong.

Answer:

True

Explanation:

Convection is the transfer of thermal energy by the movement of a liquid or gas. Convection works when a liquid or gas is unevenly heated. Hot liquids (and gases) are less dense and rise, causing. The warmer section of the material will rise while the cooler part sinks.

Hence,9500N  is the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of 120 m with gravitational acceleration of 10m/s^2.

The acceleration applied on any object due to the force of gravity when its in the vacuum which means no external force is in action over it is termed as the gravitational acceleration.

Given:

Mass of car = 950Kg

Speed of car=90.0km/h

Distance it needs to be stopped=120m

gravitational acceleration=10m/s^2

To find the force we do as follows

F=ma

F=950kg*10

F=9500N

hence, ,9500N  is the force needed to to stop the car.

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The  current flow through the resistor when it is connected to a 12 V source is approximately 0.255 mA.

The color code yellow-violet-brown-gold corresponds to a resistor with a nominal value of 47 kΩ and a tolerance of +/- 5%.

To calculate the current flow through the resistor when it is connected to a 12 V source, you need to apply Ohm's Law, which states that the current (I) through a resistor is equal to the voltage (V) across the resistor divided by its resistance (R):

I = V / R

Substituting the values, we get:

I = 12 V / 47 kΩ
I = 0.000255 A or 0.255 mA (rounded to three significant figures)

Therefore, the current flow through the resistor when it is connected to a 12 V source is approximately 0.255 mA.

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Answer:

the ebergy

Explanation:

energy does it have if a miving object

Answer:

hope it helps...

Explanation:

The answer is true

Answer:

See explanation

Explanation:

Given that;

q1 and q2 are the magnitudes of the two charges while r1 is the distance between the charges.

F1 =kq1q2/r1^2

Then,

F2 = kq1q2/(2r1)^2

F2 = kq1q2/4r1^2

So,

F2 = 1/4 F1

The force between the charges changes by a factor of 1/4.

When a diffraction grating is substituted for the double slit slide, the resulting pattern on the screen will be different.

A diffraction grating is a device with many slits that diffracts light into its component colors, similar to a prism. When light passes through a diffraction grating, it is diffracted, or spread out, into many different directions. This diffraction produces a pattern of bright and dark bands on a screen placed behind the grating, similar to the pattern produced by a double slit.

However, the pattern produced by a diffraction grating is different from the pattern produced by a double slit. The diffraction pattern produced by a diffraction grating has bright and dark bands that are wider and further apart than the bands produced by a double slit. This is because the diffraction pattern produced by a diffraction grating is determined by the spacing of the slits in the grating and the wavelength of the light passing through it, whereas the pattern produced by a double slit is determined by the interference of the two slits.

To observe the pattern on the screen with a diffraction grating, the screen does not need to be brought closer to the grating. Instead, the grating is typically placed at a distance from the screen, and the screen is placed at a distance from the grating such that the bright and dark bands on the screen are clearly visible.

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angle to the shore should a person navigate a boat, which is maintaining a constant speed of 16 km/h, in order to reach a point directly opposite is 75.5 degrees.

Since the stream is flowing parallel alongside the shore, it takes the vector form of  v {stream} = [0,4]

the boat velocity is perpendicular to the stream, it's takes the vector form of  v{boat} = [-16,0]

The resultant velocity of the boat is the sum of the velocity of the boat and stream, thus it takes the form

v{total} =  [-16,0] +  [0,4]

           = [ -16,4]

the cosine of angle to the shore,

                  cos {theta} = v{total} . v {stream} / ||v{total} || x ||v {stream}||

                                     =  [ -16,4] . [0,4] / (16x4)

                                     = 16/64

                                     = 0.25

                       angle = 75.7 degrees.

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2.50 kg of water requires 832 kJ of heat to melt at its melting point.

Q=mL Q = m L, where m is the mass of the substance and L is the latent heat of fusion (for a solid-liquid transition) or vaporization, is the equation describing the amount of heat needed to change a substance's phase (for a liquid-gas transition).

Calculation:

It is given that,

Water weight, m = 2.5 kg

L = 333 kJ/kg is the latent heat of fusion.

We must determine the temperature required to melt water at that temperature.

Q = mL

Q = 2.5 × 333 kJ/kg

Q = 832.5kJ/kg.

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The following denotes the massive, positively charged, nuclear particles is protons. A proton is a subatomic particle having a mass of 1.0072766 amu and a positive charge equal in magnitude to that of an electron but of opposite sign.

Protons are located in the nucleus of an atom and are made up of quarks. They are heavier than neutrons, which are the other subatomic particles present in the nucleus of an atom. Electrons, on the other hand, are negatively charged particles that orbit around the nucleus of an atom. They are much lighter than protons and neutrons and are located in the electron cloud outside the nucleus. Isotrons are not real particles. They are not listed in any dictionary of particle physics, nor have they been discovered in any experiment. Neutrons, on the other hand, are subatomic particles that have no charge. They have a mass of 1.008664 amu and are located in the nucleus of an atom along with protons.

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Answer:

IDC

Explanation:

I DON'T UNDERSTAND........

The velocity equation is \(v_{final} =v_{initial} +at\\\)

Known facts:

Plug into equation known quantities:

   \(v_{final} = (-3.04) * 3.83 = -11.6432m/s\)

Thus the final velocity is -11.6432m/s

Hope that helps!

Answer:

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