initially, the baton is spinning about an axis through its center at angular velocity 3.00 rad/s . (figure 1)what is the magnitude of its angular momentum about a point where the axis of rotation intersects the center of the baton? express your answer in kilogram meters squared per second.

Answer:

it would accelerate more slowly so you'd have to wait a while for it to go to full speed

Explanation:

Answer:

A roller coaster would definitely not depend gravity to be fast. Roller coasters are usually designed to use gravitational energy in the first peak to generate enough inertia to have the speed to go really fast throughout the rest of the ride without much more propellant power from the actual engineering of the track. So a roller coaster would probably have to continuously pull the cars in order to fight the weak gravitation field that would prevent the cars from accelerating when falling.

The strong nuclear force, leptons do not interact with this force and include particles like electrons and muons.

Fundamental particles are the building blocks of matter and can be grouped into two categories based on their intrinsic properties and interactions with other particles: fermions and bosons. Fermions are the particles that make up matter and are divided into two subcategories: quarks and leptons. Leptons are fundamental particles that do not participate in the strong nuclear force, while quarks are particles that do participate in the strong nuclear force and are always found within hadrons, which are particles made up of quarks.

Hadrons are subdivided into two categories: baryons and mesons. Baryons are hadrons made up of three quarks, while mesons are hadrons made up of one quark and one antiquark. Some examples of baryons include the proton and the neutron, which are both made up of up and down quarks. Mesons include particles like the pion, kaon, and eta meson.

Leptons, on the other hand, are particles that do not interact with the strong nuclear force and include electrons, muons, and taus, as well as their corresponding neutrinos. Electrons are negatively charged particles that orbit the nucleus of atoms, while muons are similar in many ways to electrons, but are about 200 times more massive. Taus are even more massive than muons.

Overall, the categorization of fundamental particles into hadrons and leptons is based on their interactions with other particles, particularly with respect to the strong nuclear force. While hadrons are made up of quarks and are subject to the strong nuclear force, leptons do not interact with this force and include particles like electrons and muons.

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Without:

With safety:

An airplane flies 170km in 15 min  in the given case.

To find the average speed, we divide the total distance by the time taken:

Average. speed = Total distance / Time taken

In this case, the total distance is 170 km and the time taken is 15 min. However, it's more common to express speed in km/hr, so we need to convert 15 min to hours:

15 min = 15/60 = 0.25 hours

Now we can calculate the average speed:

Avg. speed = 170 km / 0.25 hours = 680 km/hr

Therefore, the average speed of the airplane is 680 km/hr.

Q1b. Sarah rides her horse with a constant speed of 20 km/hr. How far can she travel in 4 hours?

To find the distance Sarah can travel in 4 hours, we multiply her speed by the time:

Distance = Speed x Time

In this case, Sarah's speed is 20 km/hr and the time is 4 hours, so:

Distance = 20 km/hr x 4 hours = 80 km

Therefore, Sarah can travel 80 km in 4 hours on her horse.

Q2a. An airplane flies at a constant speed of 780 miles per hour. How long will it take to travel a distance of 2635 miles?

To find the time it takes the airplane to travel a distance of 2635 miles, we divide the distance by the speed:

Time = Distance / Speed

In this case, the distance is 2635 miles and the speed is 780 miles per hour, so:

Time = 2635 miles / 780 miles per hour ≈ 3.38 hours

Therefore, it will take the airplane approximately 3.38 hours to travel a distance of 2635 miles at a constant speed of 780 miles per hour.

Q2b. An airplane flies at a constant speed of 540 miles per hour. How long will it take to travel a distance of 2160 miles?

To find the time it takes the airplane to travel a distance of 2160 miles, we divide the distance by the speed:

Time = Distance / Speed

In this case, the distance is 2160 miles and the speed is 540 miles per hour, so:

Time = 2160 miles / 540 miles per hour = 4 hours

Therefore, it will take the airplane 4 hours to travel a distance of 2160 miles at a constant speed of 540 miles per hour.

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The work done on the astronaut by the force from the helicopter is 11642.4 J.

The work done on the astronaut by the force from the helicopter can be calculated using the formula W = Fd, where W is work, F is force, and d is distance. In this case, the force is the tension in the cable, which is equal to the weight of the astronaut plus the force needed to accelerate the astronaut.

The weight of the astronaut can be calculated using the formula w = mg, where w is weight, m is mass, and g is the acceleration due to gravity. Therefore, the weight of the astronaut is 72 kg x 9.8 m/s^2 = 705.6 N.

The force needed to accelerate the astronaut can be calculated using the formula F = ma, where F is force, m is mass, and a is acceleration. In this case, the acceleration is g/10, so the force needed to accelerate the astronaut is 72 kg x (9.8 m/s^2 / 10) = 70.56 N.

Therefore, the total force on the astronaut is 705.6 N + 70.56 N = 776.16 N. The distance lifted is 15 m.

Using the formula W = Fd, the work done on the astronaut is W = 776.16 N x 15 m = 11642.4 J.

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Answer:

wouldn't they be dead and there's no oxygen in space....right???

Answer:

no gravity and no oxygen

Explanation:

the bird would die of lack of oxygen before they're even able to fly, but they can't fly anyway because there's no gravity so they'd just float

In an ideal-offset model for diodes, we assume that the diodes have an infinite resistance in the reverse direction and zero resistance in the forward direction. Using this model, we can calculate the current through and voltage across the diode. If we have and in the forward direction, we can assume that the voltage across the diode is zero. This means that the current through the diode will be determined solely by the resistor value. Therefore, the current through the diode will be .

In the reverse direction, the voltage across the diode will be equal to the voltage across the resistor, which is . Since the diode has an infinite resistance in the reverse direction, no current will flow through it, and the current through the resistor will be zero.To summarize, the current through the diode in the forward direction is , and the voltage across the diode is zero. In the reverse direction, the voltage across the diode is , and no current flows through it.

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The velocity of the projectile when it lands is 71.218 m/s.

The resultant velocity of the projectile when it lands is calculated by applying the following formula.

V = √ ( Vx²  + Vy² )

where;

The given parameters include the following;

the vertical velocity of the projectile = 44 m/s

the horizontal velocity of the projectile = 56 m/s

V = √ ( Vx²  + Vy² )

V = √ ( 56²  + 44² )

V = 71.218 m/s

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Answer:

initial velocity = 26 m/s

initial horizontal velocity = 10.58 m/s

initial vertical velocity = 23.75 m/s

Explanation:

The initial velocity is the given velocity, so:

initial velocity = 26.0 m/s

Then, the horizontal and vertical velocity can be calculated using the trigonometric functions cosine and sine respectively. So:

Therefore, the answers are:

initial velocity = 26 m/s

initial horizontal velocity = 10.58 m/s

initial vertical velocity = 23.75 m/s

Hope you could understand.

If you have any query, feel free to ask.

Answer:

  17 1/7 cm ≈ 17.1 cm in front of the mirror

Explanation:

You want the location of the image formed of an object placed 40.0 cm in front of a concave mirror with radius of curvature 24.0 cm. The object is 2.5 cm tall.

For a spherical concave mirror with radius of curvature r, the relationship between the distance from the mirror to the image (i) and the distance from the mirror to the object (o) is ...

  2/r = 1/i +1/o

Solving for i, we get ...

  i = 1/(2/r -1/o) = 1/(2/24 -1/40) = 120/7 = 17 1/7 ≈ 17.1 . . . . cm

The image will be formed about 17.1 cm in front of the mirror.

__

Additional comment

The magnification is -i/o = (-120/7)/40 = -3/7. The image height is about -15/14 ≈ -1.07 cm. The minus sign means the image is inverted with respect to the object.

The actual formula uses 1/f where f is the focal length. The "small angle approximation" for a spherical mirror says f = r/2, so 1/f = 2/r.

The attachment shows calculation of the image height as well as its location.

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Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

Answer:

they go BOOM i seen a gas station do it

Explanation:

The momentum of the bowling ball is 500kgm/s and that of the marble is 250kgm/s. Therefore, the momentum of bowling ball is greater than that of marble.

Momentum is the product of the mass and velocity of an object. It is a quantity of motion of an object. It is a vector quantity because it possess both the magnitude and the direction. The SI unit of momentum is kgm/s.

p = m × v

where, p = momentum of the object,

m = mass of the object,

v = velocity of the object.

The momentum of the bowling ball with a mass of 25kg and a velocity of 20m/s is:

p = 25 × 20 = 500kgm/s

The momentum of the marble with a mass of 5kg and velocity of 50m/s is:

p = 5 × 50 = 250kgm/s.

Therefore, the momentum of the bowling ball is more than the momentum of the marble.

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If the balloon is released from rest, for t = 1.25s it is in the air before it drops.

Equations of motion are used to describe how a physical system behaves in terms of how its motion changes over time.

Using the equation of motion,

s = ut + 1/2at^²

where,

s = distance above ground

u = initial velocity

t = time taken to hit the ground

a = constant acceleration by which the

where u = initial velocity = 0

a = 9.8 m/s2

s = 7.68 m

So, 7.68 = 0 + 1/2*9.8t²

So, t = 1.25s

Therefore, after t = 1.25s it is in the air before it drops.

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The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases.  As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder.

Nuclear fusion reactions, like those in the Sun, take place only at high temperatures because the high temperatures are needed to ionize the atoms (to strip them of their electrons) so that the bare nuclei can interact. The correct option is B.

Nuclear fusion is a reaction that occurs when two light atomic nuclei combine to form a heavier nucleus. Nuclear fusion reactions require high temperatures and high pressures to occur. On Earth, scientists have yet to perfect a method for controlling nuclear fusion, but they have been successful in recreating the conditions that cause it to occur.

The high temperatures are needed to ionize the atoms (to strip them of their electrons) so that the bare nuclei can interact. All nuclei are positive, and high temperatures and the high velocities that go with them are necessary to force these repulsive nuclei together, as in the Sun and other stars. The Sun's core temperature is 15 million °C, which is sufficient to initiate fusion reactions. When hydrogen is ionized, the nuclei of the atoms are released and may interact with one another to form a heavier nucleus. This process generates a lot of energy that is released in the form of heat and light.

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Friction is the force that acts on the opposite side of direction of force, thus it manages to decelerate an object, so it acts upward along the plane

Answer:

2NH3 --> N2 + 3H2 decomposition

The basketball player's ACL is approximately 75.58 millimeters long.

To use the given linear function to calculate the length of the basketball player's ACL, we need to convert the player's height from meters to centimeters because the function is given in terms of height in centimeters.

1 meter = 100 centimeters

Therefore, the player's height in centimeters would be:

h = 2.37m * 100cm/m = 237cm

Now we can use the linear function to calculate the length of the player's ACL:

LACL = 0.4606h - 41.29 LACL = 0.4606(237) - 41.29

LACL = 75.58

Therefore, by using the linear function we get the basketball player's ACL is approximately 75.58 millimeters long.

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The above question is incomplete, the complete question is:

One model for the length of a person's ACL (LACL, in millimeters) relates it to the person's height (h, in centimeters) with the linear function LACL = 0.4606h−41.29. Age, gender, and weight did not significantly influence the relationship.

(a) If a basketball player has a height of 2.37m, how long

On matching the light properties with their respective terms, answers are: 1.(l), 2.(k), 3.(f), 4.(h), (5)p, (6)j, (7)o, (8)b, (9)i, (10)n, (11)m, (12)c, (13)g, (14)a, (15)e, (16)d.

There are several properties of light, some of the most important ones include:

(1) Wavelength: Light is an electromagnetic wave that travels through space at a constant speed. The distance between two successive peaks or troughs in the wave is called the wavelength of the light.

(2) Frequency: The frequency of light is the number of complete wavelengths that pass a point in space per second. It is measured in Hertz (Hz) and is directly proportional to the energy of the light. Higher frequency light has more energy than lower frequency light.

(3) Intensity: The intensity of light refers to the amount of energy that passes through a unit area per unit time. It is directly proportional to the square of the amplitude of the wave.

(4) Speed: The speed of light in a vacuum is a constant, denoted by the symbol "c".

(5) Refraction: When light travels from one medium to another, it can change direction, a phenomenon known as refraction. The amount of refraction depends on the difference in the refractive indices of the two media.

(6) Diffraction: When light passes through a small opening or around an obstacle, it can bend and spread out, a phenomenon known as diffraction. The amount of diffraction depends on the size of the opening or obstacle relative to the wavelength of the light.

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In this experiment, marbles were rolled down a ramp to determine the relationship between potential and kinetic energy and how it affects the distance a box will slide.

The potential energy of the marbles differed based on their starting location, with higher locations possessing more potential energy. As the marbles rolled down the ramp, their potential energy decreased while their kinetic energy increased.

When the marble hit the box, it transferred its kinetic energy to the box, causing it to slide backward. The results showed that the higher the marble's potential energy, the further the box slid.

Additionally, the larger the mass of the marble, the greater its kinetic energy and the further the box slid. Overall, the hypotheses for each experiment were confirmed by the data collected.

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Answer:

Explanation:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

λ

:

λ

=

v

f

Let's plug in our given values and see what we get!

λ

=

340

m

s

440

s

−

1

λ

=

0.773

m

The magnitude of the related average acceleration will increase if the same change in velocity occurs in less time.

The rate at which a body's distance changes in relation to time is referred to as its velocity. The SI unit is meter per second ( m/s).

Acceleration is the rate at which speed and direction of velocity vary over time. When something moves faster or slower, it is considered to be accelerating. Motion on a circle accelerates even while the speed is constant because the direction is always changing.

Acceleration can be defined as the time rate of change in velocity

a = Δv / t

Now as t is in the denominator.

The smaller value of time will result in greater acceleration values with constant velocity change.

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Answer:

Radioactive Dating

Explanation:

To get the age range of rocks or fossils, researchers usually make use of radiometric dating technique which is also called radioactive dating. Now, this radioactive dating is based on the principle of comparison between the abundance that's observed from a naturally occurring radioactive isotope including its decay products, with the use of known decay rates.

To answer this question, we need to know the positions and charges of the two that exert a force on charge q1. We also need to know the distances between the charges.

Assuming that the charges are stationary, the net force on charge q1 is the vector sum of the electrostatic forces exerted by the other two charges.

The electrostatic force between two charges q1 and q2 separated by a distance r is given by Coulomb's law:

F = k * (q1 * q2) / r^2

Where k is the Coulomb constant, approximately equal to 9 × 10^9 N·m^2/C^2.

The vector sum of the individual forces gives the magnitude of the net force on charge q1. Let F1 be the force exerted on q1 by charge q2, and F2 be the force exerted on q1 by charge q3. Then the net force Fnet on q1 is:

Fnet = F1 + F2

The direction of the net force on q1 will depend on the directions of the individual forces. If the forces are in the same direction, the net force will be in that direction. If the forces are in opposite directions, the net force will be in the direction of the larger force.

So, to determine the net force and its direction, we need to know the charges and distances involved. Once we have that information, we can use Coulomb's law to calculate the individual forces and then add them vectorially to obtain the net force.

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Answer:

0.0001158443168226212 Celcius (significant digits? who cares.....) or about 0.00021 Fahrenheit

Explanation:

500g=0.5kg

PE=mgh

PE=(0.5)*(9.81)*(1.5)

PE=7.36J

3% of 7.36 is 0.22J is converted to heat

From there, it's tricky.

I just used a joules to celcius converter to get 0.0001158443168226212 degrees celcius or 0.00021 degrees fahrenheit rise in temp.

Explanation:

a) i) Calculation of the friction force:

The friction force can be determined using the equation:

friction force = coefficient of friction * normal force

The normal force is equal to the weight of the object, which can be calculated as:

normal force = mass * gravitational acceleration

where the gravitational acceleration is approximately 9.8 m/s².

normal force = 75 kg * 9.8 m/s² = 735 N

friction force = 0.4 * 735 N = 294 N

ii) Calculation of the acceleration of the body:

Now, we can calculate the acceleration using Newton's second law:

net force = mass * acceleration

Since the applied force and the friction force act in opposite directions, the net force can be calculated as:

net force = applied force - friction force

net force = 300 N - 294 N = 6 N

mass = 75 kg

6 N = 75 kg * acceleration

acceleration = 6 N / 75 kg = 0.08 m/s²

b) Explanation:

In part (a), we calculated the friction force to be 294 N and the acceleration of the body to be 0.08 m/s². The positive acceleration indicates that the body is moving in the direction of the applied force.

The friction force opposes the motion of the body and acts in the opposite direction to the applied force. In this case, the applied force of 300 N is greater than the friction force of 294 N. As a result, the net force acting on the body is 6 N in the direction of the applied force.

The small net force of 6 N, compared to the body's mass of 75 kg, results in a relatively low acceleration of 0.08 m/s². This indicates that the body will accelerate slowly in the direction of the applied force due to the presence of friction.

Overall, the friction force and the resulting acceleration of the body are determined by the coefficient of friction (μ) and the mass of the object. In this case, the body experiences a relatively high friction force, leading to a small acceleration.

Answer:

answer choices?

Explanation:

Answer:

260 km/h

Explanation:

Motion is said to be relative when the motion observed by the observer depends on the location (frame) of the observer.

When two objects are moving in opposite directions, the relative motion is obtained by subtraction.

Hence  the plane is moving at (285 - 25) km/h giving 260 km/h