What happens to Average Speed if distance decreased & time stayed the same?

Answer: 300 m/s

Explanation:

The equation for finding wave speed is the wavelength times the frequency which would be

12.0mx 25hz=300m/s

Explanation:

Free Solutions to GR BATHLA & SONS BIOLOGY (HINGLISH) Class 12 book Chapters, Questions, Answers and Solutions 2022

Answer:

Left

Explanation:

When trying to unscrew or loosen a bult, nut, etc... you turn left.

A phrase i use to remember is "lefty Loosey, righty Tightie"

Answer:

Ra / Rb = 3

Explanation:

The resistance is defined by the expression

         r = ρ L / A

where A is the area of ​​the wire and L is the length

let's find the area of ​​each wire

a) solid wire (A) of d₁ = 1 m

           r = d₁ / 2 = 0.5 m

          A = π r²

          A = π 0.5²

          R_a = \(\frac{\rho \ L}{\pi \ 0.5^2}\)

          R_a = 4 \frac{\rho \ L}{\pi   }

b) hollow tube (B) of d₁ = 1 m and d₂ = 2m

the radios are

            r₁ = 0.5 m

            r₂ = 1 m

the area is

            A = π r₂² - π r₁²

            A = π (r₂² - r₁²)

            A = π (1² - 0.5²)

            A = π 0.75

resistance is

             R_b = \(\frac{ \rho \ L }{\pi \ 0.75}\)

             R_b = 1.33 \frac{ \rho \ L }{\pi  }

therefore the relationship between these two resistances is

             Ra / Rb = 4 / 1.33

             Ra / Rb = 3

Answer:1.5m/s

Explanation:

lol its right

The expression \(X^{N} + Y^{N}\)is not divisible by X - Y (where Y is not equal to 0).

To determine whether the expression \(X^{N} + Y^{N}\) is divisible by X - Y (where Y is not equal to 0), we can use the factor theorem and the property of binomial expansion.

The factor theorem states that if a polynomial P(x) is divisible by (x - a), then P(a) equals zero. In our case, if \(X^{N} + Y^{N}\) is divisible by (X - Y), then when we substitute X = Y into the expression, the result should be zero.

Let's substitute X = Y into the expression:

\(Y^{N} + Y^{N}\)

Since \(Y^{N}\) is equivalent to \(Y^{N}\) , the expression becomes:

2(\(Y^{N}\))

We can see that the expression 2(\(Y^{N}\)) is not equal to zero unless Y is equal to zero. Therefore, if Y is not equal to zero, \(X^{N} + Y^{N}\) is not divisible by X - Y.

In summary, unless Y is equal to zero, the expression \(X^{N} + Y^{N}\) is not divisible by X - Y according to the factor theorem and the given condition.

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Answer:

13 hz

Explanation:

Speed of sound = 1522

Dolphin swims off at 8.0 = Cs

Frequency of clicks = Fo = 2500

Fo = fs(c/c+cs)

2500 = fs(1522/1522+8)

2500 = fs(1522/1530)

2500 = 0.99477fs

Fs = 2500/0.99477

= 2513.1

From here, we find the difference between this frequency and the number of clicks per second

= 2513.1 - 2500

= 13.1 hz

Approximately 13 Hz

Dangerous goods in excepted quantities FedEx: Perfume, aerosol, and laptop computers containing lithium batteries.

"Quantity of" is used for a novel (and occasionally plural) aspect you may measure, particularly if it is inanimate. for instance: A big quantity of money. A quantity object permits invitees to enter the amount of a specific product they would like to purchase. not unusual examples include raffle tickets, t-shirts, or tote baggage.

And we shall locate that (even inside the doubtlessly mundane discussion of meters, kilograms, and seconds) a profound simplicity of nature appears—all physical portions may be expressed as mixtures of the handiest four fundamental physical quantities: length, mass, time, and electric powered contemporary.

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A probabilistic assessment of seismic hazards requires an estimate of the maximum moment intensity M of the largest earthquake that is likely to occur in a given region. The answer is in the image.

Maximum magnitude, an important parameter in calculating seismic hazards, is also a controversial parameter. The choice of value can have a large impact on the final outcome of the results, but it is most likely the magnitude of an earthquake that has not yet occurred in the area under study.

The term size is defined as the number of flocks. For example, the magnitude can be used to describe the speed comparison between a car and a bicycle. It can also be used to describe how far an object has moved or how much an object has in relation to size.

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The airplane's vector angular momentum relative to a wheat farmer on the ground directly below the airplane is 11.61 × 10⁹ j kg m²/s and this value does not change as the airplane continues its motion along a straight line.

Its angular momentum relative to the summit of Pikes Peak is 2.7 × 10⁶ R j kg m²/s, where R is the position vector of the wheat farmer relative to the summit of Pikes Peak.

a) The momentum of the airplane relative to the wheat farmer can be calculated as, Momentum, p = m × v

Thus, Momentum, p = 15000 × 180

Momentum, p = 2.7 × 10⁶ kg m/s

The position vector of the airplane relative to the wheat farmer is given as, 4300 j

The vector angular momentum of the airplane relative to the wheat farmer is given as,

L = r × p

L = 4300 j × 2.7 × 10⁶ kg m/s

L = 11.61 × 10⁹ j kg m²/s

Therefore, the airplane's vector angular momentum relative to a wheat farmer on the ground directly below the airplane is 11.61 × 10⁹ j kg m²/s.

(b) No, this value does not change as the airplane continues its motion along a straight line.

(c) The momentum of the airplane relative to the summit of Pikes Peak can be calculated as, Momentum, p = m × v

Thus, Momentum, p = 15000 × 180 Momentum, p = 2.7 × 10⁶ kg m/s

The position vector of the airplane relative to the summit of Pikes Peak is r' = R + 4300 j

The vector angular momentum of the airplane relative to the summit of Pikes Peak is given as,Vector angular momentum,

L' = r' × p

L' = (R + 4300 j) × 2.7 × 10⁶ kg m/s

L' = R × 2.7 × 10⁶ kg m/s + 4300 j × 2.7 × 10⁶ kg m/s

L' = (2.7 × 10⁶ R) j kg m²/s

Therefore, its angular momentum relative to the summit of Pikes Peak is 2.7 × 10⁶ R j kg m²/s, where R is the position vector of the wheat farmer relative to the summit of Pikes Peak.

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A particle with the potential energy diagram shown is located at point A and is moving to the right with a kinetic energy of 10.0 Joules. When the particle reaches point F, the speed of the particle has decrease

As the sum of potential and kinetic energy remains constant

Kinetic energy decreases when potential energy increases and vice versa.

When kinetic energy decreases speed will also decrease.

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The force that was needed to stop the bus of mass 5000 kg that stops after 25 m in 5 s is 5000 N.

a = v / t

v = d / t

a = Acceleration

v = Velocity

d = Distance

t = Time

d = 25 m

t = 5 s

v = 25 / 5

v = 5 m / s

a = 5 / 5

a = 1 m / s²

According to Newton's second law of motion,

F = m a

F = Force

m = Mass

m = 5000 kg

F = 5000 * 1

F = 5000 N

The given question is incomplete. The complete question is:

A bus of mass 5000 kg applies brake and stops after 5 seconds and the bus stops at distance of 25 meters, calculate the force that was needed to stop the bus in N

Therefore, the force that was needed to stop the bus is 5000 N

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Answer:

workers must have a legitimate respect for the common good whose advancement they serve.

Explanation:

Answer:

so they don't get fired and they should be over all nice people

Explanation:

\(\boxed{\sf \tau=rFsin\theta}\)

Put values

\(\\ \rm\hookrightarrow 40=2Fsin40\)

\(\\ \rm\hookrightarrow Fsin40=20\)

\(\\ \rm\hookrightarrow 0.64F=20\)

\(\\ \rm\hookrightarrow F=31.25N\)

The moment of force is 40 Nm here. The displacement is 2.5 m and the angle of inclination is 45°. The force about the pivot is then 28.2 N.

Moment of force is the product of the force and distance from a fixed axis. Moment of force can be calculated for both balanced and unbalanced forces.

The expression for moment of force relating the distance d and force f with an angle of inclination θ is written as below:

moment of force =  f d sin θ

Given that moment of force = 40 Nm

distance from the fixed axis from the figure =  2 m

angle of inclination = 45 °

40 Nm =   2 f sin 45.

20 = f sin 45

  f = 20 N / sin 45

    = 28.2 N

Therefore, the force about the pivot is 28.2 N.

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Answer:

Distance - 1000m

Time - 20min

Speed - ?

Use the formula of distance ÷ time = speed.

s = d/t

s = 1000m/20min

s = 50 m/min

Hope this helps, thank you !!

The amount of force required is (V) is v(t) = at.

What is velocity?

The speed of something in a given direction. Velocity is the directional speed of to an object in motion as an indication of its rate of the  change in position as in observed from a particular to frame of reference and it's as measured by a particularly standard of time.

Sol-As per the newton's first law of motion.

Vt= vo+at

Here,

velocity at time t is v(t).

Initial velocity is vo.

Acceleration is a and the time is t.

The initial velocity is zero. Put the 0 for vo in above equation.

v(t) = 0+at

v(t)= at

Thus, the acceleration of a falling body (a), the time it takes to fall (t), and its instantaneous velocity when it hits the ground.

(V) is v(t) = at.

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Answer:

Explanation:

Force on a current carrying wire in a magnetic field

= B i L where B is magnetic field , i is current and L is length of the wire .

Putting in the given values in the question

force on a current carrying wire in a magnetic field  = .001 T x i x .5 m

5 x 10⁻⁴ i  N .

weight of the wire = .050 kg x 9.8 m/s²

= .49 N .

For equilibrium

5 x 10⁻⁴ i  = .49

i = 980 A .

Answer:

D. A light wave can travel without a medium.

Explanation:

Light wave can be defined as an electromagnetic wave that do not require a medium of propagation for it to travel through a vacuum of space where no particles exist.

On the other hand, mechanical waves such as sound are highly dependent on matter for their propagation and transmission.

This ultimately implies that, the properties which makes a light wave different from all mechanical waves is that, a light wave can travel without a medium of propagation.

Answer:

Unbalanced

Explanation:

Let car A's starting position be the origin, so that its position at time t is

A: x = (40 m/s) t

and car B has position at time t of

B: x = 100 m - (60 m/s) t

They meet when their positions are equal:

(40 m/s) t = 100 m - (60 m/s) t

(100 m/s) t = 100 m

t = (100 m) / (100 m/s) = 1 s

so the cars meet 1 second after they start moving.

They are 100 m apart when the difference in their positions is equal to 100 m:

(40 m/s) t - (100 m - (60 m/s) t) = 100 m

(subtract car B's position from car A's position because we take car A's direction to be positive)

(100 m/s) t = 200 m

t = (200 m) / (100 m/s) = 2 s

so the cars are 100 m apart after 2 seconds.

Answer:

Photovoltaic detection is a technique that converts light into electrical energy. It is a process that involves the use of a photovoltaic cell, which is made up of semiconductor materials, to generate an electric current when exposed to light.

The photovoltaic cell absorbs the photons of light, which then knock electrons out of their orbits, creating a flow of electricity. The amount of electricity produced is proportional to the intensity of the light. The photovoltaic cell is commonly used in solar panels to generate electricity from sunlight. The efficiency of the photovoltaic cell is dependent on several factors, including the type of semiconductor material used, the purity of the material, and the thickness of the cell.

The photovoltaic cell has many applications, including in solar power generation, telecommunications, and remote sensing. The technique of photovoltaic detection is an important area of research, as it has the potential to provide a clean and renewable source of energy that can help mitigate climate change.

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Answer:

65 miles per hour

Explanation:

Speed= Distance/Time

Following this formula, we just need to insert the values.

The distance is 125 miles and the time is 2 hours

125=2=65

65 miles per hour

The speed of the car was exactly 125 mi per 2 hours.

In a more familiar unit,  125mi/2hr = 62.5 mi/hr.

The comet will disintegrate at a height of 70,479,900 m.

To find the height at which the comet would disintegrate, we need to determine Earth's Roche limit with respect to the comet.

Roche limit = 2.5 [(density of planet)/(density of moon or other object)]^(1/3) (radius of planet)

Let's assume that the moon has a similar density to the comet, so we can use the Roche limit formula with the following values:

density of planet = 5500 kg/m^3

density of moon or other object = 500 kg/m^3

radius of planet = 6378 km = 6,378,000 m

Roche limit = 2.5 [(5500 kg/m^3)/(500 kg/m^3)]^(1/3) (6,378,000 m)

Roche limit = 76,857,900 m

This means that any object that comes closer to Earth than 76,857,900 m would be torn apart by tidal forces.

Therefore, the comet would disintegrate at a height of 76,857,900 m - 6,378,000 m = 70,479,900 m above Earth's surface.

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Answer:

Plane mirror

Explanation:

A virtual image is a copy of an object formed at the location from which the light rays appear to come.

Answer: In a way, yes and no. Chlorophyll's job in a plant is to absorb light. Light that's collected goes into a chemical equation to make glucose, the plant's food.

Hope it helps!

A simple machine with a ramp is an inclined plane.  It is used to lessen the force required to move something over a vertical obstacle.

                         η = MA/VR

                          η = (1/h)/ (dE/dl)

                            MA = 1/h  , VR = 1/h

                                    η = 1/h           ( MA / VR = n)

An inclined plane uses the slope or inclination to work against gravity more easily. The power expected to defeat gravity is considerably less than expected to upward lift an item; The latter is the same as the weight of the object. However, the object will travel a greater distance.

An inclined plane is a straightforward device with a sloped surface. It has no moving parts and does not move either. Slanted planes are valuable since they can raise weighty items against the power of gravity without the article going upward.

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Answer:

Explanation: someone help me please you want free points right

The box accelerates to the right due to the applied force of 35 N in the +x direction.

Newton's second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. In this case, the net force acting on the box is 35 N in the +x direction, and its mass is 15 kg. Therefore, we can calculate the acceleration using the formula:

acceleration = net force / mass

acceleration = 35 N / 15 kg = 2.33 m/s² (rounded to two decimal places)

Since the box is not accelerating up or down, we can conclude that the force applied is only causing the box to accelerate in the horizontal direction.

Other forces such as gravity and friction are not considered in this scenario. Thus, the 15 kg box will experience an acceleration of approximately 2.33 m/s² in the +x direction due to the applied force of 35 N.

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