Complete each statement with the correct term. A collision in which some kinetic energy is lost is a(n)_____collision. A collision in which the objects become one and move together is a(n)_____inelastic collision.

At speed of about, 6.38 m/s, a bicycle and its rider, with a combined mass of 110 kg , will have the same momentum as a 1300 kg car traveling at 5.4 m/s.

:: Combined mass of rider and bicycle = 110 kg

:: Mass of car = 1300 kg

:: Speed of car = 5.4 m/s

:: Required speed of bicycle = V(assume)

By law of conservation of momentum,

m1 x v1 = m2 x v2,

where, m1 &m2 are masses of bodies, and v1 & v2 are their respective velocities.

Therefore, on putting values, we get,

(1300kg x 5.4m/s) = (110kg x V m/s)

V = (7020 / 110) m/s

V ≈ 6.38 m/s

Therefore, the required speed of bicycle is 6.38 m/s.

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The acceleration of the center of mass of the cylinder is (2/3)g sinθ, and the minimum coefficient of friction between the cylinder and the inclined plane is μ_min = tanθ.

Acceleration is the rate of change of velocity of an object. It measures the rate at which an object's speed and direction changes. It is a vector quantity, meaning it has both magnitude and direction. Acceleration can be positive, negative, or zero. Positive acceleration indicates an object is speeding up, while negative acceleration indicates it is slowing down. Zero acceleration indicates an object is maintaining its current speed and direction.

Determine the translational speed of the cylinder when it reaches the bottom of the inclined plane.

b. Show that the acceleration of the center of mass of the cylinder while it is rolling down the inclined plane is (2/3)g sin theta.

c. Determine the minimum coefficient of friction between the cylinder and the inclined plane that is required for the cylinder to roll without slipping.

Answer:
a. The translational speed of the cylinder when it reaches the bottom of the inclined plane is given by v = (2gh sinθ/3)^1/2.

b. The acceleration of the center of mass of the cylinder is given by a = (2/3)g sinθ. This can be shown as follows: The acceleration due to gravity is g cos θ, so the normal force is Mg cos θ. The rotational inertia of the cylinder is 1/2MR², and its angular acceleration is a/R. By Newton's second law, the resultant force acting on the cylinder is ma = Mg cosθ - 1/2MR² a/R. Therefore, a = (2/3)g sinθ.

c. The minimum coefficient of friction between the cylinder and the inclined plane required for the cylinder to roll without slipping is μ_min = tanθ. This can be shown as follows: The force of friction acting between the cylinder and the inclined plane is given by F_f = μN = μMg cos θ. The force of friction must be equal to the centripetal force acting on the cylinder, which is Mv²/R. Therefore, μ = v²/gR = (2gh sinθ/3)^1/2/gR = tanθ.

In conclusion, we have shown that the translational speed of the cylinder when it reaches the bottom of the inclined plane is given by v = (2gh sinθ/3)^1/2, the acceleration of the center of mass of the cylinder is (2/3)g sinθ, and the minimum coefficient of friction between the cylinder and the inclined plane is μ_min = tanθ.

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Considering the coordinates of the radars as well as the direction of the object in order to determine the object's position in terms of distance and angle. Sincе thе radars arе situatеd at (0,0) and thе sеcond radar is on thе еast sidе of thе first onе, wе can assumе that thе first radar is locatеd on thе x-pivot and thе sеcond radar is locatеd on thе positivе y-hub.

Lеt's say thе objеct is dеtеctеd at coordinatеs (x, y). The objесt's y-coordinativity will be negative and its x-coordinativity positive as it approaches the southern direction in the first quadrant.

We can use the distancе formula to determine the object's diameter from its origin (0, 0):

Distancée = (x + y) 2 The angle can be calculated with trigonometry. The angle can be summarized as:

= arctan(y/x) ii) We must consider the circles of overlap for each radar in order to calculate the overlap from the radar signal intersection in the first quadrant.

Due to the fact that both radars have distinctive overlap and divide the covered area into circles, the overlapped area will be the intersection of these circles.

Thе ovеrlapping arеa can bе calculatеd by finding thе arеa of thе intеrsеction of two circlеs. The formula for the area of the intersection of two circles can be complex and depends on the specific radii and dimensions that exist between the circles' centers.

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Answer:

Explanation:

from t = .3 to t = .33 , velocity appears to be uniform .

uniform velocity = .22 m /s

displacement will be area of the v-t graph which is a rectangle .

= .22 x ( .33 - .3 )

= .22 x .03

= 66 x 10⁻⁴ m

= 6.6 mm .

The nuisance doctrine is a legal principle that says someone who moves into a place knowing there is a nuisance there cannot later complain about the nuisance and demand compensation for it.

When a homeowner lives close to an airport, it is widely accepted that homeowner should have been aware of the potential noise and other disruptions connected with living close to an airport if the airport was already operational when the homeowner moved in. Such circumstances may make it more difficult for a homeowner to successfully file a claim for compensation based on noise pollution or other airport-related problems.

A stronger case might be made for compensation based on increased noise pollution and other negative effects caused by the airport if a homeowner moved into the neighbourhood before the airport was established and had no knowledge of or reasonable expectation of its construction. This is due to the fact that instead of "coming to the nuisance," they encountered a change in their surroundings after already settling down.

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Answer:

Gamma-rays. Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. These waves are generated by radioactive atoms and in nuclear explosions. Gamma-rays can kill living cells, a fact which medicine uses to its advantage, using gamma-rays to kill cancerous cells.

Explanation:

mark me brainliest if my answer is helpful.....

In order for you to see the beam of the flashlight, it must be reflected back to your eyes.

A beam of light is visible only if it is reflected back to the eyes. This means that in order to see a beam, it must be reflected back to your eyes.

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Answer: 32 cm

Explanation:

Maximum six bullet points you should aim for on each slide to be effective in communicating your point.

Why are bullet points important?

Bullet points are important as they help to keep the data simple looking, lucid and well-organized in your communication.

In order to keep the information concise and to keep the slides from looking cluttered make sure there are only six bullet point.

In general, to effectively communicate your point, you should follow the simple rule which states that' six by six guideline'.

According to this rule, each slide shall have six bullets and  each bullet line shall consist of six words.

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The supernova that created the Crab Nebula and its pulsar was seen on Earth in the year 1054.

The supernova that created the Crab Nebula and its pulsar was seen on Earth in the year 1054 AD. This event was recorded by Chinese and Japanese astronomers as a new star in the sky that shone brightly for a few weeks before fading away. Today, the Crab Nebula is one of the most studied objects in the sky, as it provides a unique laboratory for studying the aftermath of a supernova explosion.

The pulsar at the center of the nebula is a rapidly spinning neutron star that emits beams of radio waves and gamma rays, making it one of the most energetic objects in the universe.

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No, electrolyte doesn't conduct electricity when it's solid because it hasn't evolved into ions or charged particles.

Electrolytes are substances that are capable of conducting electricity in both their molten and aqueous states while also undergoing chemical alterations. The electrolyte conducts the electricity due to a dissociation into positively charged particles and negatively charged particles.  Electrolytes are substances which conduct electricity in both molten state and aqueous solution but not in solid state. Ions cannot move freely in the solid state because they are fixed. In contrast, ions can freely move in molten form. The ions of salt in the solid state are bonded with strong inter-particle forces. Hence, they are not free to move in a solid state and cannot conduct electricity. But Salt water is the best conductor. This is because salt in an ionic compound and can easily move electrons between positive and negative ions.

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When incident ray X passes parallel to the principal axis of a concave lens and incident ray Y passes parallel to the principal axis of a convex lens, ray X will diverge and ray Y will converge after passing through each lens.

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Power = work / time

Power = 200J / 10 seconds

Power = 20 watts

Answer:

3.67 m/s²

Explanation:

Draw a free body diagram.  There are two forces on the object:

Weight force mg pulling straight down,

and normal force N pushing perpendicular to the plane.

Sum the forces in the parallel direction.

∑F = ma

mg sin θ = ma

a = g sin θ

a = (9.8 m/s²) (sin 22.0°)

a = 3.67 m/s²

The particle's velocity, acceleration, speed, and magnitude are- v = (2at)i +\((3bt^2)j + (c/ t^2)k\),  a = \((2a)i + (6bt)j - (2c/t^3)k\), t = 1.79 s is 359.2 m/s and 238.4 \(m/s^2\) respectively.

Part a) The velocity of the particle is the time derivative of its position vector:

v = dr/dt = \(2at i + 3bt^2 j + c(-2t^-3)k\)

So, the velocity as a function of time is v =\((2at)i + (3bt^2)j + (c/ t^2)k\).

Part b) The acceleration of the particle is the time derivative of its velocity vector:

a = dv/dt = \(2a i + 6bt j - 2c/t^3 k\)

So, the acceleration as a function of time is a =\((2a)i + (6bt)j - (2c/t^3)k\).

Part c) To find the particle's speed at t = 1.79 s, we first need to find its velocity at that time. Plugging in the given values of a, b, and c, we get:

v = \((2 * 4.15 m/s^2)(1.79 s)i\) + \((3 * (-3.08 m/s^3))(1.79 s)^2 j\) + \((-90.6 m/s^2)/(1.79 s)^2 k\)

v = 14.86 m/s i - 25.38 m/s j - 356.2 m/s k

The particle's speed is the magnitude of its velocity vector, which is:

|v| = \(sqrt((14.86 m/s)^2\) + \((-25.38 m/s)^2\) + \((-356.2 m/s)^2)\) = 359.2 m/s (rounded to 3 significant figures).

Therefore, the particle's speed at t = 1.79 s is 359.2 m/s.

Part d) To find the magnitude of the particle's acceleration at t = 1.79 s, we plug in the given values of a, b, and c into the expression for acceleration:

a = \((2 * 4.15 m/s^2)i\) +\((6 * (-3.08 m/s^3))j\) - \((2 * (-90.6 m/s^2))\) / \((1.79 s)^3 k\)

a = \(8.30 m/s^2 i\) - \(33.24 m/s^2 j\) - \(228.6 m/s^2 k\)

The magnitude of the acceleration is:

|a| = \(sqrt((8.30 m/s^2)^2\) + \((-33.24 m/s^2)^2\) + \((-228.6 m/s^2)^2)\)

= \(238.4 m/s^2\)(rounded to 3 significant figures).

t = 1.79 s is \(238.4 m/s^2\).

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The speed of the apple when it is 2.86 m above the ground is 7.55 m/s.


Mass of apple, m = 0.20 kg; Acceleration due to gravity, g = 9.81 m/s²; Initial velocity, u = 0; Displacement, s = 2.86 m; Final velocity, v = ?

Using the equation of motion, we can find the final velocity of the apple:  

v² = u² + 2gs  

where g is the acceleration due to gravity, u is the initial velocity and s is the displacement.

Here, u = 0, g = 9.81 m/s² and s = 2.86 m.  

v² = 0² + 2 × 9.81 × 2.86
v² = 56.4036  

Taking the square root of both sides of the equation, we get:

v = 7.55 m/s

Therefore, the speed of the apple when it is 2.86 m above the ground is 7.55 m/s.

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Answer:

4.42 m/s EAST

Explanation:

Conservation of Momentum Law:  total momentum before the collision must equal the total momentum after the collision.

Momentum = P = mv

East is the positive direction.

(3000 kg)(15 m/s) - (2200 kg)(10 m/s) = (3000 kg + 2200 kg)v

45,000 kg·m/s - 22,000 kg·m/s = (5200 kg)v

23,000 kg·m/s = (5200 kg)v

v = (23,000 kg·m/s) / 5200 kg = 4.42 m/s EAST

The direction is east because the final velocity is (+)

The site  that i think feel presented the most objective, unbiased information about cord blood banking is Wikipedia because it tends to give you different opinions or views from different expert in those field.

Anyone who needs stem cells, including a member of your close family, can benefit from cord blood banking. Your baby's cord blood contains stem cells. Numerous life-threatening diseases, including cancer, have been found to benefit from the use of stem cells from cord blood.

The following are some drawbacks of cord blood banking: Since there aren't enough stem cells in cord blood, adults who need transplants will need cord blood stem cells from several donors. In a private bank, people must pay a fee to store their cord blood, which could be pricey.

Therefore, the American Medical Association and the American Academy of Pediatrics advise against saving cord blood as a sort of "biological insurance," as the rewards are insufficient to outweigh the disadvantages. Hence i believe Wikipedia  gave me varieties of text about the issue.

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A brittle material is strong but not flexible (absorbs little force) and can break suddenly and catastrophically under high stress.

The device that is strong but not flexible (absorbs little force) is a brittle material. A brittle material is one that has a low ability to deform plastically and absorb energy before failure, resulting in a sudden and catastrophic failure once the breaking point has been reached. An example of a brittle material is glass.

A brittle material is a solid material that can crack or break with little deformation when subjected to stress, such as being hit with a hammer or bent over a knee. Because they are made up of microscopic flaws that develop into larger fractures, brittle materials fail suddenly and catastrophically, often with little or no warning.

Explanation: Brittle materials exhibit little or no ductility or plastic deformation before failure. At low stresses, they deform elastically before cracking, but at high stresses, they deform elastically before cracking. Brittle materials include ceramics, glass, concrete, and cast iron, among other materials.

Conclusion: A brittle material is strong but not flexible (absorbs little force) and can break suddenly and catastrophically under high stress.

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Answer:

-3.6 m/s

Explanation:

Here we need to use the conservation of momentum law.

So, the momentum of the man initially is zero and so of the object. The momentum of the object after throw is 5 kg multiplied by 50 m/s which is 250 kg m/s.

So the equation is as follows:

0 + 0 = (250 + 70 x v) kg m/s

Which leads to v = (-250/70) m/s ≈ - 3.6 m/s

I am not 100 % sure though! Hope this helps! :)

The recoil velocity of the man obtained is –3.6 m/s (Option A)

The recoil velocity of the man can be obtained as illustrated below

m₁v₁  = –m₂v₂

70 × v₁ = –(5 × 50)

70 × v₁ = –250

Divide both side by 70

v₁ = –250 / 70

v₁ = –3.6 m/s

Therefore, the recoil velocity of the man is –3.6 m/s

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Answer:

As the temperature is increased the more the energy store

If the impulse of a particular force is represented by the symbol J, then:
(a) the momentum is equal to J.
(b) the change in momentum is also equal to J.
(c) J is equal to the product of F and Δt.

(d) The force is equal to the change in momentum divided by the time interval over which the force acts.

(a) Momentum: Impulse (J) is equal to the change in momentum (Δp). So, if you know the impulse, you can find the momentum before and after the application of force.

(b) Change in momentum: As mentioned above, the change in momentum (Δp) is equal to the impulse (J).

(c) Force: Impulse (J) is also equal to the product of force (F) and the time interval (Δt) during which the force is applied. To find the force, you can use the equation J = F × Δt, and you'll need to know the time interval.

(d) Change in force: The change in force would require additional information, such as the initial and final force acting on the object, or the relationship between force and time. The impulse is equal to the change in momentum, and the force is equal to the change in momentum divided by the time interval over which the force acts.

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Answer:

im saying 4. its just a guess it makes sense tho

Explanation:

sorry for getting this wrong.

Answer:

longitudinal waves

Explanation:

I got it right

The fixed angular speed, w is 33.774rpm

The angular speed is a measure of how quickly the central angle of a spinning body changes with respect to time. The angular speed formula is the link between angular speed and linear speed, as well as a few angular speed difficulties.

Msanjay = Mting = m = 25kg

M= 150kg

R = 3/2m = 1.5m

r = 0.35m

w = 21 rpm

The initial moment of Inertia

Ii = (MR²/2 + MR² + MR²)

The final moment of Inertia

If = (MR²/2 +mr² +mr²)

From angular-momentum conservation

We know that

I final = I initial

Ifw = Ii wₙ

(MR²/2 +2mr²)w = (MR²/2 + 2MR²)wₙ

substituting the value in the above equation we get,

(174.875)w = 281.25 *21

w = 33.774rpm

Thus, the fixed angular speed, w is 33.774rpm

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Any situation where there is relative motion between a source of waves and an observer will result in a Doppler shift being observed by the participant.

The Doppler shift is observed when there is relative motion between a source of waves and an observer. The observed frequency of the waves can change depending on the motion of the source and/or the observer. Therefore, the following situations can lead to a Doppler shift being observed:

Moving source and stationary observer: If the source of the waves is moving towards or away from a stationary observer, the observer will perceive a Doppler shift in the frequency of the waves. When the source moves towards the observer, the observed frequency will be higher (blueshift). Conversely, when the source moves away from the observer, the observed frequency will be lower (redshift).

Stationary source and moving observer: If the observer is moving towards or away from a stationary source of waves, the observer will perceive a Doppler shift in the frequency. When the observer moves towards the source, the observed frequency will be higher (blueshift). Conversely, when the observer moves away from the source, the observed frequency will be lower (redshift).

Both source and observer in motion: If both the source and the observer are in motion relative to each other, the relative motion will affect the observed frequency of the waves. The observed frequency will depend on the direction and magnitude of the velocities of the source and the observer.

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Answer: Answer is D

I took the test little while back.

Answer:

The answer is 30N/Kg

Explanation:

\(a = \frac{force}{mass} = \frac{150nioton}{5kg} = 30 \frac{nioton}{kilogram}\)

Explanation:

Hey there!

Given;

Mass(m) = 5kg

Force (f) = 150N

Acceleration (a) = ?

We know;

F = m*a

150 = 5*a

5a = 150

a = 150/5

a = 30m/s^2.

Therefore, acceleration (a) = 30m/s^2.

Hope it helps...

Given, the mass of the sample = 433 kg. We need to find the mass of the sample in milligrams (mg).

1 kilogram (kg) = 1,000,000 milligrams (mg)

Therefore,

Mass of the sample in mg = 433 × 1,000,000 mg = 4.33 × 10^8 mg.Hence, the answer is an option (e) 4.33 × 10^8 mg.

The conversion factor between kilograms and milligrams is 1 kg = 1,000,000 mg. Therefore, to convert the mass of the sample from kilograms to milligrams, we simply multiply it by 1,000,000.

433 kg × 1,000,000 mg/kg = 433,000,000 mg

To express the result in scientific notation, we write it as 4.33 × 10^8 mg.

Option (e) is the correct answer.

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Answer:

The continuity equation says that if charge is moving out of a differential volume (i.e., divergence of current density is positive) then the amount of charge within that volume is going to decrease, so the rate of change of charge density is negative.

Explanation:

I have included a picture