what is the average velocity of a car that travels 30 kilometers due west in 0.50 hour

Answer:Gas- D. Has lots of space between particles and is easily compressible. Explanation: Solid, Liquid, gas and plasma are states of matter.

Explanation:

Sure! Here are the steps for calculating the velocity and distance traveled by the car after 50 seconds :

Step 1: Calculate the velocity using the equation:

\(v = u + at\)

where:

- \(v\) is the final velocity

- \(u\) is the initial velocity (0 m/s, as the car starts from rest)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(v = 0 + (3 \, \text{m/s²}) \times (50 \, \text{s})\)

Step 2: Calculate the distance traveled using the equation:

\(s = ut + \frac{1}{2}at^2\)

where:

- \(s\) is the distance traveled

- \(u\) is the initial velocity (0 m/s)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(s = 0 \times (50 \, \text{s}) + \frac{1}{2} \times (3 \, \text{m/s²}) \times (50 \, \text{s})^2\)

Now, let's simplify these equations:

\(v = 3 \times 50\)

\(s = \frac{1}{2} \times 3 \times 50^2\)

Calculating the results:

\(v = 150\) m/s

\(s = 3750\) meters

Therefore, after 50 seconds, the car will have a velocity of 150 m/s and would have traveled a distance of 3750 meters.

Hi there!

1)

Since the charge placed in the middle is positive, we know that the particle is being repelled.

The particle experiences a greater repelling force by the 9μC charge. We can use the equation for electric force:
\(F_E = \frac{kq_1q_2}{r^2}\)

k = Coulomb's Constant

q₁, q₂: Charges (C)
r = distance between charges (m)

This is a VECTOR quantity, so we must subtract the forces since they point in opposite directions.

Force from 9μC particle:
\(F_E = \frac{k(.000005)(.000009)}{2^2} = .101\\\\\)

Force from 4μC particle:
\(F_E = \frac{k(0.000005)(0.000004)}{2^2} = 0.0450\)

Subtract:
\(.101 - 0.0450 = \boxed{0.561 N}\)

2)

We can find a position by setting the two equations equal to one another. (Both repelling forces must be EQUAL for the force = 0 N)

Let the distance between the 9μC and 5μC charge equal 'x', and the distance between the 4μC and 5μC charge equal '4 - x'.

\(\frac{k(0.000009)(0.000005)}{x^2} = \frac{k(0.000004)(0.000005)}{(4 - x)^2}\)

Cancel out 'k' and the 5μC value.

\(\frac{0.000009}{x^2} = \frac{0.000004}{(4 - x)^2}\)

Solve for 'x' using a graphing utility.

\(\boxed{x = 2.4 m}\)

R=10+15+30

55 is the answer to the question

Answer:

Explanation:

According to Newton's third law of motion, forces always act in equal but opposite pairs. Another way of saying this is for every action, there is an equal but opposite reaction. This means that when you push on a wall, the wall pushes back on you with a force equal in strength to the force you exerted. 1.True 2.falues 3.true 4. not really sure on this one

Answer:

Explanation:

Lateral inversion is a phenomenon where the right seems to be on the left and left seems to be on the right.It occurs due to the direction is reflecting of a direct surface.An example of this is a mirror/window.A mirror is a better example to explain this! Hope this helps lemme know if u dont

Answer:

648.40N

Explanation:

Centripetal acceleration is the acceleration of an object around a circular path. Centripetal for e acting on the combined mass is expressed as:

F = ma

F = mv²/r

m is the mass of the object = 143kg

v is the linear velocity = 13.8m/s

r is the radius = 42.0m

Substitute the given parameters into the formula;

F = 143*13.8²/42

F = 27,232.92/42

F = 648.40N

Hence the magnitude of the centripetal force acting on the combined mass is 648.40N

Answer:

F = 1 N

Explanation:

Given that,

The weight of an Apple, W = 1 N

We need to find the net force acting on the apple when it is in free fall. We know that, the force acting on an object under free fall is equal to its weight. So,

F = W = 1 N

Hence, the net force acting on the Apple is 1 N.

The elastic potential energy of the spring is 1.6 J.

The elastic potential energy of the spring is the energy stored in the spring and it is calculated as follows;

U = ¹/₂kx²

where;

The given parameters include;

U = ¹/₂kx²

U = ¹/₂ (80) (0.2)²

U = 1.6 J

Thus, the elastic potential energy of the spring is a function of the spring constant and the extension of the spring.

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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

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Answer:

5) A 200n

F net=0n

6) B 50n

F net=0n

7) C 200n

F net= 900n, up

8) D 80n

F net=60n,left

9) E 300n

F net=60n,left

10)???

11) G 20n

F net=30n,Right

__________________________________

All the answers is hard

correct me if i'm wrong

The trip takes a total of 1.5 hours and has an average speed of 40 mph.

To calculate the time taken for each leg of the trip, we can use the formula time = distance/speed.

For the first leg of the trip, the car travels 15 miles at a speed of 45 mph. Using the formula, we find that the time taken for this leg is 15/45 = 0.33 hours.

For the second leg of the trip, the car travels another 15 miles but at a speed of 30 mph. Using the formula, we find that the time taken for this leg is 15/30 = 0.5 hours.

To find the total time for the trip, we add the times for each leg: 0.33 hours + 0.5 hours = 0.83 hours.

To calculate the average speed for the entire trip, we use the formula average speed = total distance/total time. The total distance traveled is 15 miles + 15 miles = 30 miles. The total time taken is 0.83 hours. Plugging these values into the formula, we find that the average speed for the trip is 30/0.83 = 36.14 mph.

Therefore, the trip takes a total of 1.5 hours and has an average speed of 40 mph.

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Proteins and complexes coordinate to maintain Ran-GTP gradient.

Ran-GTP is a small GTPase that plays an essential role in nucleocytoplasmic transport. The concentration gradient of Ran-GTP across the nuclear envelope is maintained by the concerted action of several proteins. Here are the steps involved:

Overall, the maintenance of the Ran-GTP gradient across the nuclear envelope is essential for proper nucleocytoplasmic transport, and the coordinated actions of several proteins and complexes are required to achieve this.

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In each pair, the nuclide with the radioactive property is as follows: 47102Ag, 1024Ne, and 90223Th.

What is nuclide?

An atomic nucleus with a particular composition of protons and neutrons is referred to as a nuclide. It can be recognised by its mass number (the total number of protons and neutrons) and atomic number (the quantity of protons). Nuclides can be radioactive or unstable (stable).

Let's examine each pair of nuclides to determine which one is radioactive and which one is stable:

a. 47102Ag or 47109Ag:

In this case, 47102Ag is radioactive, while 47109Ag is stable. The notation "Ag" represents the element silver.

b. 1225Mg or 1024Ne:

Among these nuclides, 1225Mg is stable, while 1024Ne is radioactive. "Mg" represents the element magnesium, and "Ne" represents the element neon.

c. 8120371 or 90223Th:

Between these nuclides, 90223Th is radioactive, while 81203TI is stable. "Th" stands for the element thorium.

To summarize:

a. 47102Ag (radioactive), 47109Ag (stable)

b. 1225Mg (stable), 1024Ne (radioactive)

c. 81203TI (stable), 90223Th (radioactive)

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The complete question is:( Paraphrase)

Select the radioactive nuclide from the following pair as your question's topic area. (One is recognised as radioactive, while the other is stable.)

a.47102Ag or 47109Ag

b. 1225Mg or 1024Ne

c. 81203Tl or 90223Th

The results of young's double-slit experiment were

- Waves produced a diffraction pattern.

- Results supported the wave theory of light.

- Results supported the particle theory of light

Two coherent sources of light are employed in Young's double-slit experiment, which is often conducted at a distance that is only a few times greater than the wavelength of the light used. Young's double-slit experiment contributed to our knowledge of the diagrammed wave theory of light.

The act of bending of the light around edges such that it expands out and illuminates regions, where a shadow is anticipated, is known as the diffraction of light. In general, since both occur simultaneously, it is challenging to distinguish between diffraction and interference.

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Answer: A,B,E.

Explanation: doing the quiz on edge!

Answer:

The answer is A because it is a resource that takes many many years to make more of and we cannot make it ourselves

The theoretical efficiency is greater than that of the actual efficiency of the engine. This is because heat engine always produces some waste heat.

The Second Law of Thermodynamics states that a heat engine cannot be 100% efficient. In practice, a heat engine is only 100% efficient when it is operating at about 30-50% efficiency.

If we were to multiply this by 100, we would get the efficiency as a percent: 49%. This is the theoretical maximum efficiency. If we were to actually build an engine, it would be less efficient than the theoretical engine. The theoretical engine that can achieve this theoretical maximum efficiency is called the Carnot Engine.

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Motion occurs when there is a change in an object's position with respect to a reference point. This change can be caused by upsetting the equilibrium of the body, such as by applying a force to it or by changing its weight distribution.

Rotary motion occurs when an object rotates around an axis of rotation, while linear motion involves the transfer of motion to outside forces. Therefore, all of these conditions are necessary for motion to occur, whether it is in a straight line or in a circular path. Understanding the conditions for motion is essential in physics and engineering, where it is necessary to study how objects move and how to control their motion to achieve specific goals.
To have motion, all of the answers are correct (option d). This means that for an object to have motion:

a. The equilibrium of the body must be upset: When a force is applied to an object in equilibrium, it will disrupt the balance and cause the object to move.

b. Rotary motion must occur around the axis of rotation: In order for an object to have rotational motion, it must rotate around a specific axis.

c. Linear motion must be transferred to outside forces: When an object experiences linear motion, the forces acting upon it must be transferred to other objects or systems for the motion to occur.

In summary, motion can be achieved by upsetting the equilibrium of the body, having rotary motion around an axis of rotation, and transferring linear motion to outside forces.

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Hitting the metal rod parallel to its axis will produce a longitudinal wave. By striking the rod perpendicular to its axis, you can produce a transverse wave.

By compressing the coils in a tiny area and then releasing the compressed area, a stretched spring can create a longitudinal wave. The disruption will then continue to spread as a longitudinal pulse.

We know that rarefaction happens in a longitudinal wave. Compression won't occur since a stretched string is inelastic and incompressible. Hence, a stretched string's longitudinal wave.

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OPTION  B IS THE ANSWER

Answer:

The real answer is A 2023 answer -_-

Explanation:

Answer:

p2=28.12KPa

Explanation:

Given data:

Initial temperature = 295 K

Final temperature= 395 K

Initial pressure = 21.0 KPa

Final pressure = ?

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

21.0 KPa / 295 K = P₂/395 K

P₂ = 21.0 KPa× 395 K / 295 K

P₂ = 8295 KPa. K /295 K

P₂ = 28.12 KPa

Answer:

materials: solid dissolved in a liquid

independent variable: temperature

Explanation:

I got it right

Answer:

3 meters

Explanation:

\(W=Fd \\\\450J=150N \cdot d \\\\d=3m\)

Hope this helps!

Answer:

3 meters

Explanation:

Formula I know is

work= force x distance.

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question

mass = 150 g

volume = 30 mL

We have

\(density = \frac{150}{30} \\ \)

We have the final answer as

Hope this helps you

Answer:

V of x is the velocity on the x graph so it is false

Hope it helps

Answer: False

Explanation:

Vx can't be acceleration because acceleration is velocity over time not distance over time (the equation for speed)

The word that BEST describes the area Elliott wants his group to improve is ownership.

option C.

Ownership refers to the idea of ensuring that all members of the group feel they have a stake in decision-making processes, and that their voices are heard and valued.

By giving quieter members more ownership over the group's goals and activities, Elliott can help ensure that everyone feels included and engaged.

Thus, ownership in the context of group dynamics refers to the sense of responsibility and control that individuals feel over their work or contributions to the group.

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Answer:

Fluorescent lamp with a 30 in its nomenclature indicates it produces light with a colour temperature of 3000k

Explanation:

A low-pressure mercury vapor gas discharge lamp called a fluorescent lamp or fluorescent tube employs fluorescence to create visible light. Mercury vapor is excited by an electric current in the gas, which generates short-wave UV rays that causes a phosphor coating on the inside of the lamp to glow. For a fluorescent lamp with 30 in to provide good rendition to warm colour, the colour temperature must be at least up to 3000k. The colour of light emitted by a hypothetical opaque, non-reflective substance at a specific temperature expressed in kelvins is known as colour temperature. Regardless of the temperature of other light sources, the colour of their light is classified using the colour temperature scale.

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