A car travels with an average velocity of 23 m/s for 82 s. Which of the following could NOT have been the car’s displacement?
1,700 m east
1,900 m west
1,600 m north
1,500 m south

Effort is 600N, load distance is 0.75m, effort distance is 199.25m, effort MA is 0.00377, VR is 265.67 and the efficiency is 0.22%.

Effort is the force that is applied on the crowbar to move the load. Load is the object that needs to be moved. Fulcrum is the pivot point or the fixed point around which the crowbar rotates. The distance between the fulcrum and the load is known as load distance. The distance between the fulcrum and the effort is called effort distance.

Effort = 600N

Load distance = 0.75m

Effort distance = 200 - 0.75 = 199.25m

Effort MA (Mechanical Advantage) = Load distance / Effort distance

Effort MA = 0.75 / 199.25 = 0.00377VR (Velocity Ratio) = Effort distance / Load distance

VR = 199.25 / 0.75 = 265.67

Efficiency = (Load * Load distance) / (Effort * Effort distance)

Efficiency = (600 * 0.75) / (Effort * 199.25) = 0.00224 * 100% = 0.22%

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When a material is subjected to a force, it can experience deformation or change in shape or size. In this case, the lead is being subjected to a force that causes it to deform and become shorter. The amount of shortening of lead 0.015 mm.

The amount of shortening of the lead can be calculated using the formula for strain, which is given by: strain = (applied force)/(Young’s modulus × cross-sectional area)

The cross-sectional area of the lead can be calculated using the formula for the area of a circle, which is given by: area = πr²

where r is the radius of the lead, which is half of its diameter. Therefore, the radius is 0.26 mm (0.52 mm / 2), and the area is 0.2124 mm² (π × 0.26²).

Plugging in the given values, we get: strain = (3.6 N) / (1 × 10⁹ N/m² × 0.2124 mm²) = 0.0168

The strain is a dimensionless quantity that represents the fractional change in length of the lead. To find the actual change in length, we can multiply the strain by the original length of the lead: change in length = strain × original length = 0.0168 × 58 mm = 0.9744 mm

Therefore, the length of the lead will decrease by about 0.9744 mm when a force of 3.6 N is applied to it. However, the question asks for the answer in millimeters (mm), and the calculated value is in thousandths of a millimeter (micrometers or µm). Converting micrometers to millimeters by dividing by 1000, we get: change in length = 0.9744 mm / 1000 = 0.015 mm

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We can use the inverse square law to solve this problem. The inverse square law states that the intensity of a point source of waves decreases as the square of the distance from the source increases.

The formula for the intensity (I) of a point source of waves is:

I = P/4πr^2

where P is the power (in watts) of the source, r is the distance from the source (in meters), and π is the mathematical constant pi.

We can rearrange this equation to solve for the distance (r) when the electric field amplitude (E) is known:

E = c√(2I/ε0)

where c is the speed of light (3 x 10^8 m/s) and ε0 is the permittivity of free space (8.85 x 10^-12 F/m).

Substituting the given values, we get:

r = √(P/4πI)

r = √(18 x 10^6 W / (4π x 0.090 V/m)^2)

r ≈ 14.1 m

Therefore, the electric field amplitude will be 0.090 V/m at a distance of approximately 14.1 meters from the 18 mW point source of electromagnetic waves

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Answer: 2 m/s to the right

Explanation:

This is a conservation of momentum question:

p before = p after → m1v1 + m2v2 = m3v3 + m4v4

**Note- if the speed is to the left, plug in a negative v!

5(2) + 3(-3) = 5(-1) + 3(v4) → 1 = -5 + 3v4 → v4 = +2 m/s :)

Answer:

3.mechanical is the answer

Mechanical energy is missing in the windmill energy transformation.

Wind> Mechanical> Electrical. Hence option (3) is correct.

The process of using the wind to produce mechanical or electrical energy is known as wind power or wind energy. The kinetic energy of the wind is transformed into mechanical power by wind turbines. This mechanical energy can be used to particular activities (such pumping water or grinding grain) or can be transformed into electricity by a generator.

When the project size is created to match the energy requirements of the load while simultaneously monetizing economies of scale and equipment track record, wind turbine economics are maximized. A modest turbine (usually less than 10 kW) that can produce the amount of electricity needed by a residence for daily operation is needed for residential onsite energy consumption.

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Answer:

105

Explanation:

The average drift velocity of the electrons is  is approximately 6.25 x 10^6 m/s.

To find find the average drift velocity of the electrons, we have to make use of the drift velocity formula. The drift velocity formula is used to relate the average drift velocity of charge carriers in a conductor to the applied electric field. It is used to understand the motion of electrons when an electric current is flowing.

The drift velocity formula is:

\(I = nAvq\)

Where:

I is the current (in Amperes),

n is the density of charge carriers,

A is the cross-sectional area of the wire,

v is the average drift velocity of electrons,

q is the charge of an electron.

In this case, we have been given current as 10A, cross-sectional area of the wire is 1mm². The density of charge carriers in the wire is 1027/m³. So, by substituting all the given identities in the equation and rearranging the equation to find out "v", we get:

\(v = I / (nAq)\)

\(v = (10 A) / ((10^{27} /m^{3} ) * (1 * 10^{-6} m^{2}) * (1.6 * 10^{-19} C))\)

\(v = (10 A) / (1.6 * 10^{-12} A * m^{2} * C * 10^{27} /m^{3} )\)

\(v = 6.25 * 10^{6} m/s\)

Therefore, the average drift velocity of electrons in the wire is approximately 6.25 x 10^6 m/s.

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Answer:

Average drift velocity of the electrons is Approx. 6.25*10^6 m/s.

Given, Current= 10A

Cross sectional area = 1mm^2

Density of charge= 1027/m^3

Formula to find velocity= I/(nAq)

= 10/(1027*1*10^-6*1.6*10^-19)

=6.25*10^6m/s

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Negative reinforcement increases the likelihood of a behavior by removing an aversive stimulus, while punishment decreases the likelihood of a behavior by applying an aversive stimulus. Both techniques can influence behavior, but negative reinforcement focuses on increasing desired behaviors, while punishment aims to decrease unwanted behaviors.

In instrumental conditioning, negative reinforcement and punishment are two different consequences that can influence behavior.

Negative reinforcement involves the removal or avoidance of an unpleasant stimulus to increase the likelihood of a desired behavior. This means that when a behavior is followed by the removal of something aversive, the behavior is more likely to be repeated in the future. For example, if a student completes their homework to avoid the negative consequence of receiving a detention, negative reinforcement is at play.

Punishment, on the other hand, involves the application of an aversive stimulus to decrease the likelihood of an unwanted behavior. It aims to decrease the frequency of a behavior by making it less appealing or reinforcing.

For instance, if a student is scolded by their teacher for talking during class, this punishment is intended to discourage the student from engaging in that behavior again.



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.infinite.

&

also

.virtual.

When all other factors are constant, the initial velocity determines the length of a projectile's trajectory.

A projectile is an object that is thrown or projected into the air and follows a path determined by the forces of gravity and air resistance. The length of a projectile's trajectory is determined by the time it takes for the projectile to reach its maximum height and the time it takes for the projectile to return to the ground. Initial velocity is the velocity at which a projectile is launched, and it determines the initial speed and direction of the projectile.

The greater the initial velocity, the farther the projectile will travel before hitting the ground, this is because the projectile spends less time in the air, so it has less time to slow down due to air resistance. In contrast, a projectile with a lower initial velocity will travel a shorter distance because it spends more time in the air and slows down more due to air resistance. Therefore, the initial velocity is a crucial factor that determines the length of a projectile's trajectory.

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Answer:

It is positive

Explanation:

The area is only concentrated with red protons

The pressure transmitted in the hydraulic fluid is 4000 Pa and the mass of the load is 40.82 kg.

To determine the pressure transmitted in the hydraulic fluid, we can use the formula:

Pressure = Force / Area

Given that a force of 20 N is applied to the small piston and the cross-sectional area of the small piston is 0.005 m², we can calculate the pressure as follows:

Pressure = 20 N / 0.005 m²

Pressure = 4000 Pa

Therefore, the pressure transmitted in the hydraulic fluid is 4000 Pa.

To determine the mass of the load, we need to consider the equilibrium of forces in the hydraulic system. The force applied to the small piston is transmitted to the larger piston. Since the system is in equilibrium, the force exerted by the larger piston must balance the force applied to the small piston.

Using the formula:

Force = Pressure × Area

The force exerted by the larger piston can be calculated as follows:

Force = Pressure × Area (large piston)

Force = 4000 Pa × 0.1 m²

Force = 400 N

Therefore, the force exerted by the larger piston is 400 N.

Since force is equal to mass multiplied by acceleration (F = m × a), and the acceleration due to gravity is approximately 9.8 m/s², we can calculate the mass of the load:

400 N = mass × 9.8 m/s²

Solving for the mass:

mass = 400 N / 9.8 m/s²

mass ≈ 40.82 kg

Therefore, the mass of the load is approximately 40.82 kg.

The question was incomplete. find the full content below:

The diagram shows a basic hydraulic system which has a small piston and a large piston with cross-sectional areas of 0.005m² and 0.1m² respectively. A force of 20 N is applied to the small piston. Determine (a) the pressure transmitted in the hydraulic fluid (b) the mass of the load​

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Answer: vitamin d

Explanation: Calcium supplements cause few, if any, side effects. However, taking too much vitamin D in the form of supplements can be harmful.

In order for the total force on q2 to be zero, the electric charge on q4 must be equal to the electric charge on q2. Therefore, the electric charge on q4 must be 5 nC.

The electric charge on an object is a measure of its electrical charge. It is expressed in units of Coulombs (C). The electric charge of an object can be either positive or negative. Two objects with the same electric charge will experience a force of repulsion, while two objects with opposite electric charges will experience a force of attraction.

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Answer:

C and E

Explanation:

The wavelength of a transverse wave can be measured as the distance between two adjacent crests. The wavelength of a longitudinal wave can be measured as the distance between two adjacent compressions. Short-wavelength waves have more energy than long-wavelength waves of the same amplitude.

Answer:

C eq = .96uF

Explanation:

The only moon in our solar system to spin in a direction opposite of its planet's rotation is Triton. Triton is the largest moon of Neptune and has a retrograde orbit, meaning it orbits in the opposite direction of Neptune's rotation. This makes Triton unique among the large moons in our solar system.

There are a few theories about how Triton came to be in a retrograde orbit. One theory is that Triton was once a dwarf planet that was captured by Neptune's gravity. Another theory is that Triton and Neptune formed together from the same cloud of dust and gas.

Whatever the reason for Triton's retrograde orbit, it is a fascinating and unique object in our solar system.

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The correct terms that fills the box are;

(i) The incident ray

(ii) The normal

(iii) The reflected ray

(iv) The angle of incident

(v) The reflected angle

The terms of the ray diagram is illustrated as follows;

(i) This arrow indicates the incident ray, which is known as the incoming ray.

(ii) This arrow indicates the normal, a perpendicular line to the plane of incidence.

(iii) This arrow indicates the reflected ray; the out going arrow.

(iv) This the angle of incident or incident angle.

(v) This is the reflected angle or angle of reflection.

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Answer:

1 cm = 10mm

Explanation:

hey there both are equal

The energy of one quantum of ultraviolet radiation having a frequency of 5.0 x 10¹³ Hz is 3.31 x 10⁻¹⁹ J.

Ultraviolet radiation is a type of electromagnetic radiation that has a wavelength shorter than that of visible light but longer than that of X-rays. It has a frequency of 7.5 x 10¹⁴ Hz to 3 x 10¹⁶ Hz. Because of its frequency, it has a higher energy than visible light, making it harmful to humans in large doses.

The energy of one quantum of radiation is determined using Planck's equation: E = hf, where E is energy, h is Planck's constant, and f is frequency. Planck's constant has a value of 6.626 x 10⁻³⁴ J·s, and frequency is measured in hertz (Hz).

So, E = hf = (6.626 x 10⁻³⁴ J·s) (5.0 x 10¹³ Hz) = 3.31 x 10⁻¹⁹ J

Therefore, the energy of one quantum of this ultraviolet radiation is 3.31 x 10⁻¹⁹ J.

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A medium is able to transport a wave from one location to another because the particles of the medium are (c)able to interact.

When a wave travels through a medium, it causes the particles in the medium to vibrate, and these vibrations are then passed on to neighboring particles, thus allowing the wave to propagate. In a solid, the particles are tightly packed and can interact strongly, allowing waves to travel quickly.

In liquids and gases, the particles are more spread out, and interactions between them are weaker, so waves travel more slowly.

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The value of tita is approximately 32.4 degrees.

The momentum in the x direction before the collision is 0.2 kg * 0.5 m/s = 0.1 kgm/s. The momentum in the y direction before the collision is 0.3 kg * 0.4 m/s = 0.12 kgm/s. The total momentum before the collision is the vector sum of the momenta in the x and y direction, which is √(0.1^2 + 0.12^2) = 0.16 kg*m/s.

After the collision, the two balls stick together and move at an angle tita to the x direction. Let's call the velocity of the combined mass v. The total momentum after the collision is the mass of the combined balls multiplied by the velocity, which is (0.2 kg + 0.3 kg) * v = 0.5 kg * v.

Since momentum is conserved, the total momentum before the collision is equal to the total momentum after the collision: 0.16 kg*m/s = 0.5 kg * v. Solving for v, we get v = 0.32 m/s. We can find the angle tita using trigonometry. The x component of the velocity is v_x = v * cos(tita) and the y component of the velocity is v_y = v * sin(tita). So we have v_x / v_y = tan(tita). Plugging in the values, we get tan(tita) = (0.32 m/s) / 0.5 m/s, or tita = arctan(0.64) = 32.4 degrees.

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The law of conservation of energy

Energy cannot be created or destroyed, but it can be changed from one form to another.

KE + PE = constant

ANSWER:

3) 1234 m

STEP-BY-STEP EXPLANATION:

Precision refers to how close two measurements are to one another. The highest number with a significant digit is the most precise, the number that has the most significant figures. Therefore, the less accurate is the opposite.

Which means that in this case, the least precise number is 1234 m.

Answer: 20 minutes

Explanation:

Given the following :

Average speed of train = 120km/hr

Distance = 40km.

The time take by the train moving at an average speed of 120km/hr to cover a distance of 40km due is ;

Recall:

Speed = distance / time

Therefore,

Time taken = distance covered / speed

Time taken = 40km / 120km/hr

Time taken = 1/ 3 hr

Therefore, 1/3 rd of an hour equals

1/3 × 60 = 20 minutes.

Time taken) 20 minutes

Time taken by tain to cover distance is 20 minutes as:

Distance= 40 km

Speed= 120 km/h

Time= distance/speed

= 40/120

= 1/3 hour

= 20 min

or  =0.33 hrs

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Answer:

mass, weight

Explanation:

mass is constant, and weight is dependant on your location

Answer:

I think d

Explanation:

because distance j

has to be the last one that's the only one with distance

The total amount of energy transformed into internal energy in the resistors is 50J.

According to ohm's law , there are two batteries of 10V and two resistors of 10 ohms and 15 ohms respectively, connected in parallel. According to Ohm's law, the current through each resistor can be calculated as I = V/R, where V is the voltage of the battery and R is the resistance of the resistor. Thus, the current through each resistor is 1A and 2A respectively.

Since the batteries are connected in parallel, the voltage across each battery is the same and equal to 10V. Therefore, the current through each branch of the circuit is the sum of the currents through the resistors connected in that branch, which gives a current of 2A in each branch.

The energy delivered by each battery can be calculated as the product of the voltage and the charge delivered, which is given by Q = I*t, where I is the current and t is the time. As the time is not given, we assume it to be 1 second. Thus, the energy delivered by each battery is 20J and 30J respectively.

The energy delivered to each resistor can be calculated as the product of the voltage and the current, which is given by P = V*I. Thus, the energy delivered to the 10 ohm resistor is 20J and the energy delivered to the 15 ohm resistor is 30J.

The type of energy storage transformation that occurs in the operation of the circuit is electrical to thermal. As the current passes through the resistors, some of the electrical energy is converted into thermal energy due to the resistance of the resistors.

The total amount of energy transformed into internal energy in the resistors can be calculated as the sum of the energy delivered to each resistor, which gives a total of 50J.

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Answer:

Search it

Explanation:

its on it

The speed of 5 kg ball is 10.2 m/s

Given data:

The mass of cart 1 is m₁=3 kg.

The speed of cart 1 moving east is v₁=17 m/s.

The mass of other cart is m₂=5 kg.

Since the carts stick together, and comes to rest their final velocity is zero, i.e., v=0.

Applying the conservation of momentum between the carts as,

Here, v₂ is the speed of 5kg cart. Since the cart 2 moving in west direction therefore v₂=-v₂.

Substitute all the values in above equation,

Thus, the speed of 5 kg ball is 10.2 m/s.

Final answer: 10.2 m/s

The maximum speed she can tolerate at the low point of her swing is 10.78 m/s.

Given that,

Mass of the carpenter = 61.7 kg

Length of the rope = 11.5 m

Capable force = 1229 N

Centripetal force acting on the body, F = mv²/r = 61.7* v²/11.5 = 5.37 v²

Gravitational force acting on her is

F = mg = 61.7* 9.81 = 605.28 N

Equating the summation of centripetal force and gravitational force with total capable force,

5.37 v² + 605.28 = 1229

5.37 v² = 623.72

v² = 116.15

v = 10.78 m/s

Thus, the maximum speed she can tolerate at the low point of her swing is 10.78 m/s.

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