A 2.40-kg object is moving east at 4.00 m/s when it collides with a 6.00-kg object that is initially at rest. After the completely elastic collision, the larger object moves east at 2.29 m/s.

1)
What is the final velocity of the smaller object after the collision? Assume that the positive direction is to the east.(Express your answer to three significant figures.)

Answer:

retina.

Explanation:

Answer:

The intensity is  \( I  = 0.0175I_o \)

Explanation:

From the question we are told that

   The wavelength is  \(\lambda = 633 \ nm = 633*10^{-9} \ m\)

   The width of the slit is \(d = 0.24 \ mm = 0.00024 \ m\)

   The distance from the screen is  \(D = 6.0 \ m\)

   The distance of the position considered from the center is \(y = 3.0 \ mm = 0.003 \ m\)

  Generally the intensity from at a point on the screen 3.0 mm from the center of the pattern is

       \(I = I_o * \frac{sin^2 [\frac{\pi d * y}{ \lambda D } ]}{[\frac{\pi d * y }{\lambda D} ]^2}\)

 Here  \(I_o\) is the intensity of the central bright fringe

=>    \( I  = I_o *  \frac{sin^2 [\frac{3.142  * 0.00024 * 0.003}{ 633*10^{-9} * 6 } ]}{[\frac{3.142*0.00024  * 0.003 }{633*10^{-9} * 6} ]^2}\)

=>    \( I  = 0.0175I_o \)        

A current of a 6 flows through a light bulb for 12 s. The total charge that passes through the light bulb during the given time is 72 coulombs.

To calculate the total charge that passes through the light bulb, we need to use the formula Q = I * t, where Q represents the charge in coulombs, I represents the current in amperes, and t represents the time in seconds.

Step 1: Identify the known values:

Current (I) = 6 amperes

Time (t) = 12 seconds

Step 2: Calculate the charge using the formula:

Q = I * t

Step 3: Substitute the known values into the formula:

Q = 6 amperes * 12 seconds

Q = 72 coulombs

Therefore, the total charge that passes through the light bulb during the given time is 72 coulombs.

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Answer:

The evaporation of water is an example of a change in Pysical Change .

The work required to move a 1 nC charge from an electric potential of 0 V to a potential of 18 V is 18 nJ (Option f).

When moving a charge in an electric field, the work done can be calculated using the formula W = qΔV, where W is the work done, q is the charge, and ΔV is the change in electric potential.

In this case, the charge is\(0.36V * 1600 kg/m^3 = 0.36 * 0.088 m^3 * 1600 kg/m^3 = 88 kg.\)) and the change in potential is 18 V. Plugging these values into the formula, we get\(W = (1 × 10^-9 C)(18 V) = 18 × 10^-9 J = 18 nJ.\)

Therefore, the correct answer is option f. No other options accurately represent the work required to move the charge in this scenario.

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Answer:

even more space than it already encompassed.

Explanation:

it is expanding into nothingness or it might it expanding in and of itself

A. When an object's acceleration vector points in the same direction as its velocity, the object speeds up without turning.

The average acceleration vector is defined as the rate at which the velocity changes with time.

When an object is slowing down, the acceleration of the object is in the opposite direction as the velocity.

Also, when an object is speeding up, the acceleration of the object is in the same direction as the velocity.

Thus, when an object's acceleration vector points in the same direction as its velocity, the object speeds up without turning.

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Answer:

Explanation:

The velocity of the spacecraft can be found by using the formula

\(v = \frac{p}{m} \\ \)

p is the momentum

m is the mass

From the question we have

\(v = \frac{20000}{250} = \frac{2000}{25} \\ \)

We have the final answer as

Hope this helps you

The exploded star is called a black hole.

The time horizon of the black hole is an area of spacetime where gravitational pull is so intense that nothing, not even light or other electromagnetic waves, have the energy to pass through it.

It is believed that the first black holes appeared shortly after the big bang, in the beginning of the cosmos. When the core of an extremely massive star is collapsed on itself, stellar black holes are created.

A supernova, also known as an exploding star, is also brought on by this collapse and sends a portion of the star into space.

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Given:

The puma jumps to the height of: h = 3.7 m

The angle made by puma with the ground is: θ = 45°

To find:

The speed of the puma when it leaves the ground.

Explanation:

We consider only the vertical motion of the puma.

The puma jumps to the height of 3.7 m and its speed at this height will be zero.

Thus, v = 0 m/s.

The initial speed "u" can be calculated by using the following kinematical equation.

Here, a = - g. The negative sign indicates that the puma jumps against the acceleration due to gravity.

Taking g = 9.8 m/s² and substituting the values in the above equation, we get:

Now, the vertical component of the speed of the puma is given as:

Here, u0 is the speed with which the puma leaves the ground.

Substituting the values in the above equation, we get:

Final answer:

The speed of the puma with which it leaves the ground is 12 m/s.

Note the rate at which oil is flowing is: 7.19 m³/s . See the computation below.

We can use the principle of continuity of flow to solve this problem. According to this principle, the mass flow rate of the oil is:

m_dot = rho * A * v: where:

rho is the density of the oil,

A is the cross-sectional area of the pipe, and

v is the velocity of the oil.

The cross-sectional area of the pipe before the constriction is:

A1 = (pi/4) * d1² = (pi/4) * (0.978 m)² = 0.7526 m²

The cross-sectional area of the pipe after the constriction is:

A2 = (pi/4) * d2² = (pi/4) * (0.5868 m)² = 0.2701 m²

The velocity of the oil can be calculated using the principle of continuity of flow:

A1 * v1 = A2 * v2

where v1 is the velocity before the constriction and v2 is the velocity after the constriction.

Solving for v1, we get:

v1 = (A2/A1) * v2 = (0.2701 m^2 / 0.7526 m^2) * v2 = 0.3590 * v2

The pressure difference across the constriction is:

deltaP = P1 - P2 = 7600 N/m² - 5700 N/m² = 1900 N/m²

Using Bernoulli's equation, we can relate the pressure difference to the velocity difference:


deltaP = (1/2) * rho * (v2² - v1²)

Substituting the expression for v1, we get:

deltaP = (1/2) * rho * (v2² - 0.1290 * v2²)

Solving for v2, we get:

v2 = sqrt(2 * deltaP / rho * (1 - 0.1290)) = 20.16 m/s

Finally, the mass flow rate of the oil is:

m_dot = rho * A1 * v1 = 821 kg/m³ * 0.7526 m² * 0.3590 * 20.16 m/s
= 5904.4 kg/s

Converting to cubic meters per second, we get:

Q = m_dot / rho = 5904.4 kg/s / 821 kg/m³ = 7.19 m³/s

Therefore, the rate at which oil is flowing is 7.19 m³/s

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Answer:

b

Explanation:

because the of F frick is the same of the size of F app

Answer:

72 km/h. that the speed it's need

Answer:

Explanation:

Given:

t = 10 min = (1/6) h

D = 12 km

______________

V - ?

V = D / t = 12 / (1/6) = 12·6 = 72 km/h

26.54 m/s  is the magnitude of its velocity just before it strikes the ground

h=100m,v=20m/s,g=9.8m/s

time it takes to reach the ground,

\([t=\sqrt2h/g],[=\sqrt2*100/9.8=4.51s]\)

x= 120m

t= 4.52

v= x/t

v= 120/4.52

v= 26.54 m/s

The "speed at which an object changes its location" can be expressed using a vector number called velocity. Consider a person who moves swiftly while taking two steps forward and two steps back while remaining in one location. Velocity is a vector quantity. Therefore, velocity is cognizant of direction. The direction must be taken into account when determining an object's velocity. A speed of 55 mph is not enough information. The direction must be used to appropriately depict the item's velocity. Simply said, the direction of the velocity vector indicates the direction of motion of an object.

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1 hour = 3600 seconds

Find the number of hours it takes by dividing total distance by speed:

2100 km / 90 km/h = 23 1/3 hours

Multiply total hours by 3600:

231/3 x 3600 = 84,000 seconds

It will take the motorcycle 84 seconds to cover 2100 km at a speed of 90.0 km/h. The correct answer is 84 seconds.

Given:

Speed = 90.0 km/h

Distance = 2100 km

The time it takes for the motorcycle to cover 2100 km at a speed of 90.0 km/h, you can use the formula:

Time = Distance / Speed

Convert the speed to meters per second

1 km = 1000 m

1 hour = 3600 seconds

The speed in meters per second:

Speed = 90.0× (100 / 1 ) × (1  / 3600 )

Speed  = 25 m/s

The formula to calculate the time:

Time = Distance / Speed

Time = 2100 / 25

Time = 84 seconds

It will take the motorcycle 84 seconds to cover 2100 km at a speed of 90.0 km/h.

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Answer:

no

Explanation:

This downward force and acceleration results in a downward displacement from the position that the object would be if there were no gravity. The force of gravity does not affect the horizontal component of motion; a projectile maintains a constant horizontal velocity since there are no horizontal forces acting upon it.

The left vertical line part of the diagram indicates the amplitude of the wave.

The amplitude of a wave or vibrating body is defined as the maximum displacement or distance generated by a point on the wave or body compared to its position of equilibrium. It is the same as the length of the vibration path divided by half.

The wave's amplitude is shown by the left vertical line in the figure, which depicts the highest displacement or distance that a spot on a wave or moving body can make compared to its equilibrium position. So the left vertical line part of the diagram indicates the amplitude of the wave.

The figure of the question is attached.

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Answer:

Digestive system

Explanation:

ulcer affect anywhere in the digestive system

Digestive system.

Since the acids in your food break down with the chemicals in your stomach, it can give you heartburn and also, ulcer disease happens in your stomach so the only correct answer would be Digestive System. I would like to say that the person with the profile name BigPapa who commented on my answer deserves a lot of credit, and thanks if you see this.

-R3TR0 Z3R0

Given: Spring constant(k) = 23.6 N/m

            Elastic potential energy(P) = 1.25J

To find: Extension(x)

Solution: We know that,

                                       \(P= \frac{1}{2}kx^{2}\)

                         i.e.        \(1.25 = \frac{1}{2}(23.6)x^{2}\)

                                        \(x^{2} =0.1059\)

                                         \(x = \sqrt{0.1059}\)

                                         \(x = 0.3254 m\)

The rubber band should be stretched 0.3254 m apart

The amount of load lifted by the pulley when the efficiency is 60% and effort is 50 N is determined as 30 N.

The amount of load lifted by the pulley is calculated by applying the formula for efficiency of a machine as follows;

E = L / E   x  100%

where;

The amount of load lifted by the pulley is calculated as;

60 = L / 50   x 100%

60 = 100L / 50

100L = 50 x 60

100 L = 3000

L = 3000 / 100

L = 30 N

Thus, the amount of load lifted by the pulley is 30 N.

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Answer:

Note: 1 watt * 1000 hrs = 1 kWh    

         1 watts * 10,000 hrs = 10 kWh

Incandescent for 1000 hrs

Original cost = .51

  Usage = 122 W * .06  = 7.32

Total cost for 1000 hrs 7.32 + .51 = 7.83

Total cost for 10,000 = 78.3

CFL Bulb for 10,000 hrs

Original cost = 5.88

 Usage = 18  * .06 / kWh * 10 kWh = 10.8

Total cost = 5.88 + 10.8 = 16.68

Gives a total savings of 78.3 - 16.68 = 61.62

Another way of looking at this:

Note: the cost of electricity for the incandescent bulb is:

122 W * 1000 hr * .06 / kWh = 122 kWh * 06 = 7.32  for each KWh

That is 73.2 for 10 kWh   and 5.1 for bulb cost = 78.3

The CFL bulb uses in 10,000 hrs

18 kWh * 10 * .06 = 10.8    cost of electricity

bulb cost = 5.88  for a total cost of 16.68

If the purchase price of an incandescent bulb is $0.51 and for the CFL it is $5.88. The cost of electricity is 0.06 $ per kWh, then her total savings over the lifetime of the CFL would be 61.62 $.

The rate of doing work is known as power. The Si unit of power is the watt.

Power = work/time

As given in the problem to save energy and money, Jackie Smith replaced the 122 Watt incandescent light bulb in her house with an 18 Watt CFL bulb. The expected life of incandescent and CFL bulbs is 1,000 and 10,000 hours respectively. The purchase price of an incandescent bulb is $0.51 and for the CFL it is $5.88. The cost of electricity is 0.06 $ per kWh

The original cost of the incandescent bulb = 0.51

Cost in the electricity usage of  incandescent bulb = 122  × 0.06  = 7.32

Total cost for 1000 hrs 7.32 + 0.51 = 7.83

Total cost for 10,000  with the use of the incandescent bulb = 78.3

CFL Bulb Is used for 10,000 hrs

The original cost of the CFL = 5.88

Cost associoated with the  Electricity usage of the CFL = 18  * .06 / kWh * 10 kWh = 10.8

Total cost of the CFL = 5.88 + 10.8 = 16.68

78.3 - 16.68 = 61.62

Total savings over the lifetime of CFL would be 61.62 $.

Thus, her total savings over the lifetime of the CFL would be 61.62 $.

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The velocity of the car 1 can be seen from the calculation as 20 m/s West

A coordinate system or point of view used to observe motion is known as a frame of reference. It can be used as a guide when describing an object's position, speed, and acceleration. Different frames of reference may result in various motion observations.

The relative velocity is the velocity of an object or observer as observed from a particular frame of reference.

We can see that the velocity of the car 1 is;

45 m/s - 25 m/s

= 20 m/s West

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The minimum thickness of the magnesium fluoride layer that will cause destructive interference of reflected light with a wavelength of 480 nm is 86.9 nm

To find minimum thickness of a non-reflective coating that causes destructive interference we use the formula t = (mλ) / (4n)

The wavelength (λ) of the light is 480 nm

the refractive index (n) of magnesium fluoride is 1.38,

we can calculate the minimum thickness (t) by saying

t = 0 × 480 / 4 × 1.38

t = 0 nm

t = 1 × 480 nm / 4 × 1.38

t = 480 nm / 5.52

t = 86.96 nm

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Answer:

Tension

Explanation:

Answer:

Multiply the friction factor by pipe length and divide by pipe diameter. Multiply this product by the square of velocity. Divide the answer by 2.

Explanation:

Multiply the friction factor by pipe length and divide by pipe diameter. Multiply this product with the square of velocity. Divide the answer by 2.

Hope this answer helps you