What is the formula for impulse and momentum?

The maximum speed with which the car can round this curve without slipping is 12.35 m/s.

The velocity of a body or object determines its direction of motion. Speed is a scalar quantity in its most fundamental form. Velocity is essentially a vector quantity. It is the rate of change in distance. The displacement change rate is the issue.

Maximum speed restrictions set a ceiling on possible speeds and, if followed, can lessen the disparities in vehicle speeds amongst users of the same road.

The materials being used have an impact on the coefficient of friction. For instance, rubber on the pavement has a high coefficient of friction, which prevents the materials from sliding past one another as readily as ice on steel, which has a low coefficient of friction.

Given:

μ =0.5

Radius (r) = 30.5

g = 10 m/s^2

v^2 = μrg

\(v=\sqrt{0.5*30.5*10}\)

\(v=12.35m/s\)

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Answer: 1.Magnification and resolution are important because the magnification in larges the image and the resolution makes it move shape and detailed creating the perfect image.  2. i dont know the second one, sorry

Explanation:

Answer:

In which direction does the current in circuit A flow?

counterclockwise

Explanation:

The current flowing through the circuit A is \(I = \frac{e}{r_1 + r_2}\).

"Your question is not complete, it seems to be missing the following information",

find the the current flowing through the resistors in circuit A;

The given parameters;

The equivalent resistance of the circuit A in series is calculated as follows;

\(R_e = r_1 + r_2\)

The emf of the battery connected to circuit A

emf = e

The current flowing through the circuit A is calculated as follows;

\(V= IR\\\\I = \frac{V}{R} \\\\I = \frac{e}{R_e} \\\\I = \frac{e}{r_1 + r_2}\)

Thus, the current flowing through the circuit A is \(I = \frac{e}{r_1 + r_2}\).

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The first ball that will hit the ground with the greatest amount of kinetic energy when there are three identical balls are released on earth, which are ball A which has an initial upward velocity of V = 0, ball B which has an initial downward velocity of V = 0, and ball C that has an initial horizontal velocity of V = 0 is ball C because ball C has an initial horizontal velocity of v0, it will possess the highest kinetic energy when it reaches the ground.

Kinetic energy is the energy of an object in motion. When an object is moving, it possesses kinetic energy. The kinetic energy of an object is directly proportional to the mass of the object and the square of its velocity. Kinetic energy is often denoted by the letter "K" and is expressed in joules (J) in SI units. It is one of the two forms of mechanical energy, the other being potential energy. Kinetic energy is a scalar quantity, which means it has only magnitude, and its direction is always parallel to the direction of the velocity vector of the object. The formula for kinetic energy is K= 1/2mv^2, where m is the mass of the object, and v is the velocity of the object.

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Answer:

d. 0.48

Explanation:

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:

turbine

Explanation:

Tidal energy is produced in the Tidal power plant to produce electricity. The kinetic energy is produced because of the energy of the tides in the form of moving water. This energy is converted into electricity with the help of power turbines. The turbine plays an important role in the production of electricity. The fluid that is used in the turbine contains potential energy. The moving turbine converts the potential energy to kinetic energy and the energy is collected in the form of electricity.

Answer:

turbine

Explanation:

took the test

Answer: I would stop been shy, so I could be able to say what I think to others.  I would be nicer to others, behave better. I would share more with others.

Given the mass and change in velocity of the ball, the impulse force imparted on the ball is 0.5kgm/s.

An impulse is simply a concept that involves the change in the momentum of an object when force is introduced for a period of time.

Using the formula of impulse.

ΔP or Change in Momentum  = Ft  = m( v - u )

Where m is mass, v is final velocity and u is initial velocity

Given that;

ΔP = m( v - u )

ΔP =  0.02kg( 25m/s - 0 )

ΔP =  0.02kg( 25m/s )

ΔP =  0.5kgm/s

Given the mass and change in velocity of the ball, the impulse force imparted on the ball is 0.5kgm/s.

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An absorption spectrum has dark lines or gaps in the spectrum corresponding to wavelengths that are absorbed by the gas. Emission Spectrum: Starlight can also heat up a cloud of gas, exciting the atoms and molecules within the gas, and causing it to emit light

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a) The function generator must be precisely tuned to a particular frequency in this experiment because if the frequency is not set to the correct frequency, the wavelength will change.

The experiment likely involves the use of sound waves, which have a particular wavelength and frequency. The wavelength of a sound wave is inversely proportional to its frequency, meaning that if the frequency changes, the wavelength will also change. In order to ensure that the experiment is measuring the desired property of the sound waves, such as their speed or resonance, it is necessary to use a sound wave of a particular wavelength or frequency. If the frequency is not set to the correct frequency, the wavelength of the sound wave will change, which could affect the accuracy and validity of the results.

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At the time of care, giving patients accurate, complete, and current information. facilitating quick access to patient records to improve coordination and effectiveness of service.

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Answer:

there is no image

Explanation:

Answer:

Colors!

Explanation:

"Visible light waves are the only electromagnetic waves we can see. We see these waves as the colours of the rainbow. Each colour has a different wavelength. Red has the longest wavelength, and violet has the shortest wavelength."

Answer:

A. Displacement is a vector quantity.

The definition describes cognitive behavior therapy (B).thought correction to reduce stress is correct option.

The goal of cognitive behaviour therapy (CBT), a type of psychotherapy that aims to promote overall mental health and reduce stress, is to rectify one's thoughts. It aids people in recognizing and altering unfavorable thought and behaviour patterns that contribute to their emotional and psychological discomfort. The foundation of cognitive behavioral therapy (CBT) is the notion that our ideas, feelings, and behaviours are interrelated, and that altering one of these elements can result in favorable changes in the others.

Therefore, the correct option is (B).

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The answer depends on the force-distance relationship for stretching the bands and the displacement of the stone from the equilibrium position.

The force required to stretch one rubber band by 1.0 cm is 15 N. Therefore, the force required to stretch it by 0.20 m is (15 N/0.01 m) * 0.20 m = 300 N.

The potential energy stored in each rubber band is given by the formula PE = (1/2) * k * \(x^2\), where k is the spring constant and x is the displacement. Since we have two rubber bands, the total potential energy stored in the two bands together is PE = 2 * (1/2) * k * \(x^2\).

Substituting the values, where k = 300 N/m and x = 0.20 m, we can calculate the potential energy:

PE = 2 * (1/2) * (300 N/m) * \((0.20 m)^2\) = 12 J.

Therefore, the potential energy stored in the two bands together when the stone is pulled back 0.20 m is 12 J.

(b) To determine the speed at which the stone leaves the slingshot, we can use the principle of conservation of mechanical energy. At the point of release, all the potential energy stored in the bands is converted into kinetic energy of the stone.

The potential energy stored in the bands is given by PE = (1/2) * m * \(v^2,\) where m is the mass of the stone and v is its velocity.

Equating the potential energy to the initial potential energy (12 J) and solving for v, we have:

(1/2) * m * \(v^2\) = 12 J.

Substituting the values, where m = 50 g = 0.05 kg, we can solve for v:

(1/2) * (0.05 kg) * \(v^2\) = 12 J.

\(v^2\) = (12 J) / (0.025 kg) = 480 \(m^2/s^2.\)

Taking the square root of both sides, we find v ≈ 21.9 m/s.

Therefore, the stone leaves the slingshot with a speed of approximately 21.9 m/s.

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The one-dimensional diffusion equation or Fick's second law is the name of this equation. For the geographically and temporally variable concentration, it is solvable.

A diffusion explanation is what?

The movement of molecules along a concentration gradient is known as diffusion. It is a significant process that all living things go through. Diffusion facilitates the flow of materials into and out of cells.

Which definition of diffusion is the best?

Diffusion is the movement of molecules from a region where they are more concentrated to one where they are less concentrated. Therefore, "Movement of molecules from a region of their greater concentration to a region of their lower concentration" is the right response.

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John weighs more on Jupiter than on Venus or Neptune, and he weighs less on Neptune compared to Venus.

Gravity is a force of attraction between any two objects in the universe that have mass.

Here,
The weight of an object on a planet is given by the formula

W = mg

where W is the weight, m is the mass of the object, and g is the acceleration due to gravity on the planet.

On Jupiter, John's weight would be:

W = mg = (95 kg)(25 N/kg) = 2375 N

On Venus, John's weight would be:

W= mg = (95 kg)(9 N/kg) = 855 N

On Neptune, John's weight would be:

W = mg = (95 kg)(11 N/kg) = 1045 N

The difference in John's weight comparing all three planets is:

Jupiter - Venus: 2375 N - 855 N = 1520 N

Jupiter - Neptune: 2375 N - 1045 N = 1330 N

Venus - Neptune: 855 N - 1045 N = -190 N (the negative sign indicates that John weighs less on Neptune compared to Venus)

Therefore, John weighs more on Jupiter than on Venus or Neptune, and he weighs less on Neptune compared to Venus.

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It will take approximately 9.3 seconds for the car to go from a speed of 27.18 m/s to a speed of 33.15 m/s.

In this problem, the initial velocity of the car is 27.18 m/s and the final velocity is 33.15 m/s.

The car has an acceleration of 0.64 m/s².

We can use the following equation to find the time taken by the car to accelerate:

t = (vf - vi) / a ,

where t is time,

vf is final velocity,

vi is initial velocity

and a is acceleration.

Substituting the given values in the above equation, we get:

t = (33.15 - 27.18) / 0.64t = 9.375 s

(rounded off to 9.3 seconds)

Therefore, it will take approximately 9.3 seconds for the car to go from a speed of 27.18 m/s to a speed of 33.15 m/s.

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Answer:

thank you

Explanation:

Split up the two given velocity vectors into horizontal and vertical components.

Plane:

p = (100 km/h) (cos(90°) i + sin(90°) j ) = (100 km/h) j

Its direction is given, 90° relative to east.

Traveling for 3 hours with this velocity results in a displacement of

p * (3 h) = (300 km/h) (3h) j = (900 km) j

meaning that this velocity contributes to a north-facing displacement of 900 km.

Wind:

w = (30 km/h) (cos(315°) i + sin(315°) j ) ≈ (21.2 km/h) i + (-21.2 km/h) j

Its direction is also given, 315° relative to east.

After 3 h, this velocity contributes to a displacement of

w * (3h) ≈ (63.6 km) i + (-63.6 km) j

meaning if the plane had no velocity of its own but somehow stayed in the air, the wind would have pushed it about 63.6 km south and 63.6 km east, which translates to a net displacement of

√((63.6 km)² + (-63.6 km)²) = 90 km

due southeast.

Putting everything together, your table displacement table should read:

.                       |   wind   |   plane

velocity           |   30      |   100       ...   km/h

direction         |   90°     |   315°      ...   relative to east

x                      |   63.6   |   0           ...   km

y                      |  -63.6   |   900      ...   km

The resultant vector is the sum of these, r = p + w :

r ≈ (21.2 km/h) i + (78.8 km/h) j

After 3 h, the resultant displacement is

r * (3h) ≈ (63.6 km) i + (236.4 km) j

with magnitude

√((63.6 km)² + (236.4 km)²) ≈ 244.8 km

and direction θ such that

tan(θ) ≈ (236.4 km) / (63.6 km)

θ ≈ arctan(3.714) ≈ 74.9°

So the resultant table should read

xnet             |   63.6 km

ynet             |   236.4 km

magnitude   |   244.8 km

theta            |   74.9° relative to east

Answer:

54 Km per hour..

Explanation:

Multiply the speed value by 3.6

For a UV radiation with a 200 nm wavelength is mathematically given as the maximum kinetic energy, in eV, of photoelectrons ejected from the gold

K.E=1.779*10^{19}J

K.E=1.112ev

Generally, the equation for the photo electric equation  is mathematically given as

\(hc/\lambda=K.E+\phi\)

Therefore

K.E=(6.626*10^{-34}*3*10^8/2*10^{-7})-5.1*1.6*10^{-19}

K.E=1.779*10^{19}J

In conclusion, in eV, of photoelectrons ejected from the gold

K.E=1.112ev

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Answer:

Explanation:

According to newtons second law, Force = mass* acceleration.

Given

Force = 1930 N

Mass of pumpkin = 2 kg

Required

Acceleration of the pumpkin

From the formula;

acceleration = Force/mass

acceleration = 1930/2

acceleration = 965m/s²

Hence  the acceleration of a 2kg pumpkin if launched by a force of 1930 N is 965m/s²