A crystal that is hard, brittle, a poor conductor of electricity and of heat, held together by electrostatic interactions is likely to be

Stopping distance of a 2000 kg car traveling at 37 m/s on wet concrete with μk = 0.50 is 141.95 meters.

To solve this problem, we need to use the formula for the stopping distance of a car on a slippery surface:

d = (v² / 2μk g)

where:

v - is the car's initial velocity.

d - is the stopping distance

μk - is the coefficient of kinetic friction between the car's tires and the road surface

g - is the acceleration due to gravity (9.81 m/s²)

Substituting the given values, we get:

d = (37² / (2 * 0.50 * 9.81)) = 141.95 meters

Therefore, the stopping distance of the car is 141.95 meters.

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Complete question:

A 2000 kg car traveling at a speed of 37 m/s skids to a halt on wet concrete where μk = 0.50. What is Stopping distance?

Answer:

The charge of a neutron is 0  

The charge of an electron is -1

Explanation:

Answer:

The charge of Neutrons is: 0

The charge of Electrons is: -1

Explanation:

Neutrons are uncharged and Electrons are negatively charged. The negative charge of one electron balances the positive charge of one proton. Both protons and neutrons have a mass of 1, while electrons have almost no mass.

The correct answer is e. None of the above alternatives gives a true statement. None of the statements in options a, b, c, and d are true when it comes to a modulus M over a ring R having a finite basis.

When a modulus M can be formed entirely from a finite set of elements, the modulus M is said to be finitely generated. M's finite basis does not, however, automatically imply that M is finitely generated. A basis is a set of linearly independent elements, and it might not be enough to produce all of the components of the modulus.

According to the assertion in option b, M must include nonzero items of nonzero order if it has a finite basis. This is untrue, though. The smallest positive number k, such that the element raised to the power of k equals the identity element, is referred to as the order of an element.

According to option c, every non-null element in a modulus with a finite basis has a null. Nevertheless, this claim is likewise untrue. It is possible for a modulus with a finite basis to have non-null elements without a null element.

According to option d, a ring R is a body, or a field, and only then can a modulus have a finite basis. However, this assertion is also untrue. Even though the ring R is not a field, a modulus can nonetheless have a finite basis. None of the given alternatives provides a true statement about a modulus M over a ring R having a finite basis.

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The expression for the capacitance per meter of a coaxial cable is C = \frac{2\pi\epsilon_0}{\ln(b/a)}

The capacitance per unit length of a coaxial cable with inner radius a and outer radius b is given by:

C = \frac{2\pi\epsilon_0}{\ln(b/a)}

where \epsilon_0 is the permittivity of free space.

To find the capacitance per meter of the coaxial cable, we divide this expression by the length of the cable, L:

C_{\text{per meter}} = \frac{C}{L} = \frac{2\pi\epsilon_0}{L\ln(b/a)}

Since the cable is assumed to have air as the insulating material between the cylinders, we can assume that \epsilon_r = 1 and \epsilon = \epsilon_0 (the permittivity of free space), which gives us the above expression.

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Answer: The charges must be like charges (both positive or both negative).

Explanation:

Answer: False

Explanation:  

Answer:

A. There is hydrogen bonding between water molecules

Explanation:

Boiling point is a physical property of matter. It is typically conditioned by the intermolecular forces present between the molecules of a compound.

Answer:

A)

Explanation:

There is hydrogen bonding between water molecules

To determine the direction of the force particle q2 is exerting on particle q1, we can use Coulomb's law. Coulomb's law states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. The equation for Coulomb's law is:

F = k * (|q1| * |q2|) / r^2

Where:

F is the magnitude of the force between the two particles.

k is the electrostatic constant, approximately equal to 9 × 10^9 N·m^2/C^2.

|q1| and |q2| are the magnitudes of the charges of particles q1 and q2, respectively.

r is the distance between the particles.

Given:

|q1| = 13.0 μC

|q2| = -5.90 μC

r = 0.30 m

Plugging in the values into Coulomb's law, we get:

F = (9 × 10^9 N·m^2/C^2) * ((13.0 μC) * (-5.90 μC)) / (0.30 m)^2

Calculating this expression gives us:

F ≈ -302.33 N

The negative sign indicates that the force between the particles is attractive, meaning particle q2 is exerting a force on particle q1 to the left (-) direction.

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Answer:

Explanation:

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Chlorination of methane to yield chloromethane. also called a radical scavenger.

A substance, such as an antioxidant, facilitates shielding cells from the damage caused by unfastened radicals. free radicals are risky molecules that can be made all through everyday mobile metabolism.

A scavenger in chemistry is a chemical substance added to an aggregate as a way to get rid of or de-spark off impurities and undesirable reaction products, for example, oxygen, to ensure that they'll now not motivate any adverse reactions.

Loose radical scavengers both prevent reactive oxygen species from being formed or dispose of them earlier than they are able to damage crucial additives of the mobile. they are referred to as preventive and chain-breaking antioxidants.

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Answer:

No not at all. A car speeding up is an example of acceleration.

Answer:

No.

Explanation:

Its a example of decceleration because its slowing down not speeding up. If the car were to go faster then it would be an example of acceleration. Hope this helps :)

The potential energy has decreased as the point charge was moved to a higher potential.

Potential energy is a type of stored energy that depends on how various system elements interact with one another. A spring's potential energy rises when it is crushed or stretched.

Instead of being a property of specific objects or particles, potential energy is a property of systems. For instance, the system composed of Earth and the elevated ball has more potential energy as they move away.

The energy stored between the capacitor's plates when it is charged is known as electrical potential energy.

Systems with components whose configurations, or relative positions, affect the strength of the forces they apply to one another, create potential energy. The gravitational pull of the Earth-ball system entirely depends on their distance from one another.

The change in potential energy (ΔU) can be calculated using the equation:

ΔU = q ΔV

where q is the charge of the point charge (-8.29 C) and ΔV is the change in potential (5.96 V).

So,

ΔU = -8.29 C * 5.96 V = -49.38 J

The negative sign indicates that the potential energy has decreased as the point charge was moved to a higher potential.

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An object with a mass of 15 kilograms on Earth weighs approximately 147.15 Newtons (N).

 Mass is the amount of matter that an object contains, whereas weight is the force of gravity on that object. The formula for calculating weight is:F = m × gwhere:F is weightm is massg is the acceleration due to gravityOn Earth, the acceleration due to gravity is approximately 9.81 meters per second squared (m/s²). Therefore, the weight of an object with a mass of 15 kg on Earth would be:F = 15 kg × 9.81 m/s²F = 147.15 NThus, an object with a mass of 15 kilograms on Earth weighs approximately 147.15 Newtons (N).

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Answer:

2.5 m/s²

Explanation:

Given:

v₀ = 15 m/s

v = 45 m/s

t = 12 s

Find: a

a = (v − v₀) / t

a = (45 m/s − 15 m/s) / 12 s

a = 2.5 m/s²

The object is traveling at 10 m/s.

Momentum is defined as the product of an object's mass and velocity. The formula for momentum is:

p=mv

where,

p = momentum

m = mass

v =  velocity

We can use this formula to find the velocity of an object given its momentum and mass. To solve for velocity, we can divide both sides of the equation by mass:

velocity = momentum/mass

In this case, the object has a mass of 40 kg and a momentum of 400 Kgm/s, so we can plug in these values to find the velocity:

velocity = 400 Kgm/s / 40 kg = 10 m/s

Therefore, the object is traveling at 10 m/s.

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Answer:

The electric flux through the sphere is \(8.58 *10^{5} \frac{Nm^2}{C}\)

Explanation:

Given

\(Radius,\ r = 0.03m\\Charge,\ q =7.6\µC\)

Required

Find the electric flux

Electric flux is calculated using the following formula;

Ф = q/ε

Where ε is the electric constant permitivitty

ε \(= 8.8542 * 10^{-12}\)

Substitute ε \(= 8.8542 * 10^{-12}\) and \(q =7.6\µC\); The formula becomes

Ф = \(\frac{7.6\µC}{8.8542 * 10^{-12}}\)

Ф = \(\frac{7.6 * 10^{-6}}{8.8542 * 10^{-12}}\)

Ф = \(\frac{7.6}{8.8542} *\frac{10^{-6}}{10^{-12}}\)

Ф = \(\frac{7.6}{8.8542} *10^{12-6}}\)

Ф = \(0.85834970974 *10^{12-6}}\)

Ф = \(0.85834970974 *10^{6}}\)

Ф = \(8.5834970974 *10^{5}}\)

Ф = \(8.58 *10^{5} \frac{Nm^2}{C}\)

Hence, the electric flux through the sphere is \(8.58 *10^{5} \frac{Nm^2}{C}\)

Explanation:

Given parameters:

Jermaine runs exactly 2 laps around a 400m track

Start time  = 3:02:00PM

End time  = 3:04:45PM

Unknown:

Distance traveled  = ?

Speed  = ?

Displacement  = ?

Velocity  = ?

Solution:

To solve this problem, we need to find the distance and time first;

        Distance  = 2 x 400  = 800m

Time taken  = 3:04:45PM  - 3:02:00PM  = 165s

Speed  = \(\frac{distance}{time}\)   = \(\frac{800}{165 }\)   = 4.85m/s

The velocity of the body is 0m/s and so is the displacement.

This is because the starting and finishing position of the Jermaine is the same.

Answer:

Homework · Free food · Loosing and robbing pencil · Forgetting book at home · Waiting for a Play time · My first bit · Lunch sharing · Assembly lines- standing in last just ...

Explanation:

Answer:

c

Explanation:

a, b, and d are examples of moving forward

while c is moving backwards.

Answer:

if it were submerged 1000 m in the ocean it would be crushed because of the differences of the air and water pressure.

If it were taken 10,000 m (higher than Mt Everest) it would explode due to the differences of external and internal air pressures.

Momentum is increased by a factor of 2.

The momentum of an object is defined as the product of its mass and velocity.

Therefore, the magnitude of its momentum is directly proportional to the speed of the object.

When the kinetic energy of an object is increased by a factor of 4, its speed must also increase.

The relationship between kinetic energy and speed is given by the equation KE = 1/2\(mv^2\), where m is the mass of the object and v is its velocity.

Doubling the speed of the object would result in an increase in kinetic energy by a factor of 4.

Therefore, the magnitude of its momentum would also increase by a factor of 2.

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Answer:

a-d

Explanation:

hope this helps

Answer:

Explanation:

To solve this problem, we need to use the formula for centripetal force:

F = (mv^2) / r

Where:

F = centripetal force

m = mass of the object

v = velocity of the object

r = radius of the circular path

Assuming the mass of the runner is 70 kg, we can plug in the given values and solve for the centripetal force:

F = (70 kg)(8.8 m/s)^2 / 25 m

F ≈ 217.6 N

Therefore, the centripetal force required to keep the runner moving in a circular path with a radius of 25 m and a speed of 8.8 m/s is approximately 217.6 N.

What is wrong with the diagram is : ( 4 )

The maximum gravitational potential energy is located at the highest peak which the roller coaster attains while as the roller coaster comes down from the peak the gravitational potential energy decreases while the kinetic energy increases.

The point at which the roller coaster should attain it maximum kinetic energy should be at the lowest point ( i.e far left side of the bottom ).

Hence we can conclude that error in the diagram is the spot with the "maximum kinetic energy" should be on the lowest point of the roller coaster at the far left side on the bottom.

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A student drops a ball and it falls downward. Types of energy are involved in this energy transformation are kinetic and gravity potential.

Energy is defined as the capacity of a physical system to perform work.

Types of energy are Kinetic energy and potential energy.

The energy an object has as a result of motion is known as kinetic energy. Applying force to an object will cause it to accelerate.

Potential energy is the energy that is stored in any object or system as a result of its position or component arrangement.

A student drops a ball and it falls downward then there is kinetic energy due to motion and potential energy due to height.

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Answer:

the branch of science concerned with the nature and properties of matter and energy

Answer:

yes

Explanation:

Answer:

Yes

Explanation:

The core of an electromagnet serves to stabilize the magnetic field created by the wire. The thicker the core, the more metal there is to amplify the current. Therefore, a thicker core does make an electromagnet stronger. Hope this helps!

Transition statements are used to link the introduction, body, and conclusion of a speech.

These statements serve as bridges between different sections or ideas within a speech, helping the speaker guide the audience smoothly from one point to another. Transition statements can be words, phrases, or sentences that indicate a shift in topic, introduce new information, provide examples, summarize key points, or signal the conclusion of one part and the beginning of another.

Transitions play a crucial role in maintaining the coherence and flow of a speech. They help the audience understand the logical progression of ideas and follow the speaker's train of thought. By using effective transition statements, speakers can create a seamless connection between the introduction, body, and conclusion, enhancing the overall clarity and organization of their speech.

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Answer:

The total distance covered is 3 km and the displacement is 2.24 km.

Explanation:

For the total distance covered by Anthony, we just add all of the distances.

1 km (going east) + 1 km (going east again) + 1 km (going south) = 3 km

Hence, the his total distance covered when he went to the pizza place is 3 km.

Solving for the displacement is a different matter. We cannot just add all of the distances. From analysis of the problem, Anthony traveled and formed a right triangle. He traveled 1 km east twice, making it 2 km east in total, then he traveled 1 km south.

When dealing with a right triangle with 2 sides given (for this problem the two sides are the 2 km east and the 1 km south), we use the Pythagorean Theorem.

Solution:

c² = a² + b²  (Pythagorean Theorem)

c will be the longest side of the right triangle

a and b will be the other sides of the right triangle

c = √ (a² + b²)

c = √ (2² km + 1² km)

c = √5 km

c = 2.2361 km ≈ 2.24 km

Therefore, the displacement of Anthony is 2.24 km.

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