What property of waves does the electromagnetic spectrum measure?.

This is a uniform rectilinear motion (MRU) exercise.

We get the data:

d = ?, v = 55 km/h, t = 2 hr

To calculate the distance, multiply the speed by the time.

d = v * t

The distance traveled is 110 km.

The answer is five dots.

sorry i  meant three dots not five

When the clay collides with the rod and sticks to it, the angular momentum of the rod changes. Angular momentum is a measure of the rotational motion of an object and is given by the product of its moment of inertia and angular velocity.

Before the collision, the rod is at rest, meaning its angular velocity is zero. However, as the clay collides with the rod and sticks to it, the system gains angular momentum due to the transfer of momentum from the clay to the rod. This causes the rod to start rotating counterclockwise around the frictionless axle.

The moment of inertia of the system changes because the clay adds to the overall mass distribution of the rod. The moment of inertia is a measure of an object's resistance to changes in its rotational motion and is dependent on both mass distribution and the object's shape.

As the clay collides and sticks to the rod, the moment of inertia increases, which in turn affects the angular velocity. According to the principle of conservation of angular momentum, the product of moment of inertia and angular velocity remains constant in the absence of external torques.

Therefore, as the moment of inertia increases due to the addition of the clay, the angular velocity of the rod decreases to maintain a constant angular momentum. This decrease in angular velocity is what causes the rotation of the rod to slow down.

In summary, the angular momentum of the rod changes as the clay collides and sticks to it. The moment of inertia increases due to the addition of the clay, which causes the angular velocity of the rod to decrease. This change in angular velocity allows the rod and clay to rotate together counterclockwise around the frictionless axle.

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Answer:

7.5 × 10^-11 m

Explanation:

Hope this helps !

Answer:

Ally has a harder time

ally takes more time

juan is quick

juan is more experienced

if none of those are awnser choices what are the awnser choices?

Explanation:

Option C is correct. The image is located between F and the center of the lens, on the other side of the lens the upright than the actual object.

Virtual and imaginary image is the type of upright image. A virtual picture is generated when light rays appear to meet at a certain spot following reflection from a mirror.

The picture that appears right-side-up is called an erect image. Unlike a virtual image, it is created by the real junction of light beams.

The lens in the illustration is a concave lens. The light rays that fall from the item onto the lens diverge, making it a diverging lens.

The item is held between the focus and the lens's center. At the same side of the item, an image would form between the focus and the lens's center.

The picture would be simulated, shrunk, and centered. As a result, the correct answer is: "The picture is upright."

Hence option C is correct

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Answer:

the answer to the first one is B and the second one is c I hope I got them right

We have that Since Cart A spends t=77.5secs and Cart B spends t=50sec

Therefore

The Cart A wins the Race and by 25.5( 77.7-50)secs

From the question we are told

For Cart A

Generally the equation for the Velocity  is mathematically given as

\(v=\frac{d}{t}\\\\t=\frac{d}{v}\\\\t=\frac{1000}{20}\\\\t=50sec\)

For Cart B

Generally the Newtons equation for the Motion  is mathematically given as

\(S=ut+1/2at^2\\\\Therefore\\\\S=ut+1/2at^2\\\\1000=0+1/2*(0.33)t^2\\\\t=\frac{1000}{1/2*(0.33}}\\\\t=77.5secs\)

Since

Cart A spends t=77.5secs and Cart B spends t=50sec

Therefore

The Cart A wins the Race and by 25.5( 77.7-50)secs

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The given amplifier circuit is a common-source amplifier. The equivalent circuit diagram of the amplifier includes a MOSFET N5486 transistor. We can determine the drain current (ID) and drain-source voltage (VDS) using the following equations:

1. Voltage at the source terminal (VS) is calculated using Ohm's law: VS = IS x RS.2. The drain current (ID) can be calculated using the equation ID = IS (1 + GVin), where Vin is the input voltage, G is the voltage gain, and IS is the current flowing through RD.Let's calculate the values of ID and VDS:

Given:- IS = VDD / RD = 10V / 10Ω = 1A- Vin = -1V / (1.5 x 10^6Ω + 0.47μF) = -0.6666667μA (using voltage divider rule)- G = -RD / RS = -10Ω / 3kΩ = -0.003333 Calculating ID:ID = 1A (1 - 0.003333 x 0.6666667 x 10^6)≈ 0.997A = 997mACalculating VDS:VDS = VDD - IDRD= 10V - 997mA x 10Ω≈ 10V - 9.97V≈ 0.03VTherefore, the values of ID and VDS are approximately ID = 997mA and VDS ≈ 0.03V, respectively.

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Answer:

A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. Animal cells simply have a cell membrane, but no cell wall.

hope this helps :)

Answer:

Compare animal cell and plant cell: Both are eukaryotic cells, both contain membrane bound organelles. Both contain similar membranes such as cytosol and cytosketal elements.

Explanation:

The attractive force between two point charges +6.0 C and -3.0 C that are 15 m apart is -0.0275 N.

The attractive force between two point charges +6.0 C and -3.0 C that are 15 m apart can be calculated by using Coulomb's law.

Coulomb's law: Coulomb's law states that the magnitude of the electrostatic force of attraction or repulsion between two charges q1 and q2 separated by a distance r is given by F = (1/4πϵ₀)(q₁q₂/r²), where ϵ₀ is the electric constant having a value of 8.854 × 10⁻¹² C²/Nm².The force between +6.0 C and -3.0 C separated by a distance of 15 m can be calculated as follows:F = (1/4πϵ₀) × (q1q2 / r²) Where F = electrostatic force of attraction or repulsionq1 = +6.0 Cq2 = -3.0 Cr = 15 mϵ₀ = 8.854 × 10⁻¹² C²/Nm²Substituting the values in the above equation we getF = (1/4πϵ₀) × (6.0 × (-3.0) / (15)²)F = (-0.0275 N).

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The required speed of the drive shaft is 2343.02 revolutions per minute (RPM) when transmitting a torque of 0.86 kNm.

To determine the required speed of the drive shaft, we can use the formula relating power, torque, and rotational speed.

The formula for power (P) in terms of torque (T) and rotational speed (ω) is:

P = T * ω

Given:

Power (P) = 2017 watts

Torque (T) = 0.86 kNm = 0.86 * 1000 Nm

We can rearrange the formula to solve for rotational speed (ω):

ω = P / T

Substituting the given values, we have:

ω = 2017 / 0.86 * 1000

ω ≈ 2343.02

Therefore, the required speed of the drive shaft is approximately 2343.02 revolutions per minute (RPM) when transmitting a torque of 0.86 kNm.

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The magnitude of the displacement of the object after it travelled for seven seconds is 28 m (Option A).

The displacement of an object is the change in the position of the object.

Velocity = displacement / time

How to determine the displacement from the velocity - time graph;

From the question given above, the following data were obtained:

Time = 7 s

Velocity = 4 m/s

Displacement =?

Velocity = displacement / time

4 = displacement / 7

Cross multiply

Displacement = 4 × 7

Displacement = 28 m

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Answer:

fdsbgdfshtrsnbfgsbnhgr

Explanation:

cdfrgresgtrshtrwhtrwhtwjhdgngdabfeahydrtgnb

The  evaluated net water flow is 0.08 MPa under the context  that 0.15 mpa is selected as the root tissue and placed it in a 0.1 m solution of sucrose ψ = -0.23 mpa.

Then water potential of root tissue = -0.15 MPa, now  that of a 0.1 M solution of sucrose = -0.23 MPa. Then water potential gradient is

Δψ = ψ1 - ψ2

here

Δψ = water potential gradient,

ψ1 = water potential of root tissue

ψ2 = water potential of a 0.1 M solution of sucrose

Staging the values in the formula

Δψ = (-0.15) - (-0.23)

Δψ = 0.08 MPa

Hence, the level of  sucrose solution has a lower in comparison to  water potential present in the root tissue, therefore water will flow from the sucrose solution into the root tissue.

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Answer:

Distance, S = 110 meters

Explanation:

Given the following data;

Initial velocity = 15 m/s

Acceleration = 4 m/s²

Time = 5 seconds

To find the distance covered, we would use the second equation of motion;

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

Where;

S is the distance covered or displacement of an object.

u is the initial velocity.

a is the acceleration.

t is the time.

Substituting the values into the equation, we have;

\( S = 15*4 + \frac{1}{2} * 4*5^{2} \)

\( S = 60 + 2*25 \)

\( S = 60 + 50 \)

Distance, S = 110 meters

H=132.3m and U=29.4ms−1 are height and velocity respectively.

What is motion?

Motion is a change in position of an object over time. It occurs when an object moves from one point to another. Motion can be described in terms of displacement, distance, speed, velocity, and acceleration. Motion can also be described using Newton's laws of motion which state that an object in motion will remain in motion unless acted upon by an external force. Motion also describes the motion of particles in a fluid or gas, as well as the motion of waves in a medium. Motion is an essential part of the physical world and is essential for understanding the fundamental laws of nature.

Motion in a straight line

Let,

u = Initial velocity of stone

H = Maximum height attained by the stone

v = final velocity at maximum height = 0

t = time taken to attain maximum height = 3s

a=−g= acceleration due to gravity

a. We know that,

V=u+at

0=u−g×3

U=3g=3×9.8ms−2

U=29.4ms−1

b. From the equations of motion, we know that,

S=ut+ ½ a t2

H=29.4×3+½ * 9.8 *32

H=88.2+44.1

H=132.3m

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The heat that must be supplied per second to the gasoline engine having thermal efficiency of 26 % and power output of the engine of 50 hp is 49.88 hp/s.

A gasoline engine has thermal efficiency = 26 %

Power output of the engine = 50 hp

We know that thermal efficiency of an engine is defined as the ratio of the output work to the input heat. It is mathematically represented as:

Thermal efficiency = Output work / Input heat

Since the gasoline engine has a thermal efficiency of 26 %, it means that only 26 % of the heat supplied is converted into useful work. The remaining 74 % of heat is lost in the engine and surroundings.

Therefore, the output work is only 26 % of the input heat. We can use this to find the input heat.

Input heat = Output work / Thermal efficiency

Let I be the input heat.

Then, we can write:

26 % = 50 hp / I => I = 50 hp / 0.26 => I = 192.31 hp

Therefore, the input heat required to generate 50 hp of power output with a thermal efficiency of 26 % is 192.31 hp.

We know that power is defined as the rate of doing work. It is given by the formula:

Power = Work / time

Let H be the heat that must be supplied per second to the engine. Then, we can write:

50 hp = H / t => H = 50 hp × t

Where,

t is the time in seconds

Substituting H = 192.31 hp, we get:

192.31 hp = 50 hp × t

=> t = 192.31 hp / 50 hp

=> t = 3.85 s

Therefore, the heat that must be supplied per second to the engine is 192.31 hp / 3.85 s = 49.88 hp/s (rounded to two decimal places).

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The amount of heat that must be supplied per second to the engine is approximately 143,019.23 watts or 143.02 kilowatts (kW).

To calculate the amount of heat that must be supplied per second to the engine, we can use the equation:

Power output = Thermal efficiency * Heat input

Given:

Power output = 50 hp

Thermal efficiency = 26% = 0.26

Let's convert the power output from horsepower (hp) to watts (W) since SI units are commonly used in physics calculations.

1 horsepower (hp) is equal to 745.7 watts (W).

Power output = 50 hp * 745.7 W/hp = 37,285 W

Now, we can calculate the heat input:

Heat input = Power output / Thermal efficiency

Heat input = 37,285 W / 0.26 = 143,019.23 W

Therefore, the amount of heat that must be supplied per second to the engine is approximately 143,019.23 watts or 143.02 kilowatts (kW).

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With 4.3 m/s velocity, is the cheetah running.

velocity= distance/time

distance=27.6 m

time=6.3 s

velocity=27.6 m/6.3 s

velocity=4.3 m/s

A vector number known as velocity describes "the pace at which an item changes its location." Imagine a person moving quickly, taking one stride ahead, one step back, and then beginning from the same place each time. A vector quantity is velocity. As a result, velocity is aware of direction. One must consider direction while calculating an object's velocity. Saying that an item has a velocity of 55 miles per hour is insufficient. The direction must be included in order to adequately characterize the object's velocity. Simply said, the velocity vector's direction corresponds to the motion of an item.

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If a source emits sound at a fixed constant frequency f, and it moves away from the observer at the same time as the observer moves away from the source, the frequency the observer hears is lower than f. Hence option lower than f. is correct.

This is due to the Doppler effect. What is the Doppler effect? The Doppler effect is a phenomenon that occurs when a source of waves, such as sound or light, is moving relative to an observer. The Doppler effect causes the observed frequency of the waves to differ from the emitted frequency when the source and observer are moving relative to each other. This change in frequency is due to the compression or stretching of the waves that occurs as the source moves closer or farther away from the observer.

If a source of sound is moving away from an observer, the sound waves become stretched and the frequency of the sound decreases, resulting in a lower pitch. If the source of sound is moving towards the observer, the sound waves become compressed, causing the frequency of the sound to increase, resulting in a higher pitch. This is the reason why an ambulance siren sounds higher-pitched as it approaches the listener and then drops to a lower pitch as it moves away.

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Answer:

Its. Biased

Explanation:

Answer:

THey near 225 MPH at 'Dega

Explanation:

Answer:

increase the resistance of the bulb

Explanation:

In a simple circuit the power dissipated in a light bulb is proportional to the product of the voltage and the current

         P = i V

Besides the voltage is

       V = i R

       P = i² R

Therefore, a simple method to decrease the power dissipated in a bulb to increase the resistance of the bulb, for this a series resistance is placed in the circuit.

Consequently the correct answer is increase the resistance of the bulb

Answer:

Explanation:

As the king came near the hermit's hut, he saw the hermit digging the ground in front of his hut. He greeted the king and continued digging. ... (ii) The hermit saw simple people only, so the king put on simple clothes to visit him. (iii) The hermit was digging the ground in front of his hut when the king visited him.

The student B with velocity of 300 mph will have greater net force exerted.

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

The motion of the object is always directed towards the net force.

F = ma

where;

F = m(v/t)

where;

The force applied to an object is directly proportional to the velocity of the object.

Thus, the student with greater velocity will have greater net force exerted.

The student B with velocity of 300 mph will have greater net force exerted.

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The temperature can rise 234° C in each of the four 3.5 kg steel brake disks.

Energy cannot be created or destroyed, according to the law of conservation of energy. However, it is capable of change from one form to another. An isolated system's total energy is constant regardless of the types of energy present.

According to law of conservation of energy:

1/2 × 1600 × 42.8² = 4 × 3.5 × 448 × Δt

Δt = (1600 × 42.8² )/( 2 ×  4 × 3.5 × 448)

Δt = 234° C.

Hence, the temperature can  rise 234° C in each of the steel brake disks.

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When an object attached to a horizontal spring oscillates, its kinetic energy is maximum at the midpoint between points A and B, as it has the highest speed at this position. Answer is option C). Midway between A and B.

At points A and B, the kinetic energy is minimum since the object momentarily comes to a stop before changing direction. The object attached to the horizontal spring oscillates between points A and B, which means it moves back and forth. Kinetic energy is the energy of motion, so the object will have its maximum kinetic energy when it is at the midpoint between A and B. This is because at this point, the object has the highest speed, and thus the highest kinetic energy. Therefore, the answer is C) midway between A and B.

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Answer:

The direction of a moving object will not change if the net force acting on it is zero.

Explanation:

If there is a net force acting on a body, the body may accelerate, slow down, or change direction. In other words, an unbalanced net force may change the state of motion of a body.

The only way a moving object will not change its direction if the body is moving with a constant velocity, meaning all the forces acting on the body are in equilibrium (or balanced). In other words, the net force acting on it is zero, and the speed, as well as direction, would not change.

Therefore, we conclude that the direction of a moving object will not change if the net force acting on it is zero.

Answer:

The distance covered by an object per unit time is known as speed.

Answer:

Speed is known as the distance covered per unit time.It is a scalar quantity. Unit of speed is m/s.

It has only magnitude, direction is not specified.

An object is said to be in uniform speed or motion if it covers equal distance in equal intervals of time.

The formula to find speed is

\( \sf \frac{distance}{time} \\ \)

Suppose we take an example that distance is 100km and time is 5 hour

So speed will be

\( \frac{ { \cancel{100}} \: \: ^{20} }{ \cancel5} \\ \)

speed is 20 km/ hr.

\(\Large\textsf{Hope \: It \: Helped}\)