A point on a spinning record experiences a centripetal acceleration of .75 cm/s^2 . How far is the point from center of the record if the record spins at 0.5 revolutions per second?

TRUE: The total change in momentum for this interaction is zero.

FALSE: The change in the space bug's momentum is greater than the change in the spaceship's momentum.

UNDETERMINED: If the space bug had stuck to the spaceship instead of bouncing off, momentum would not have been conserved for this interaction.

Answer: Vector A⃗ has y-component Ay = +12.0 m . A⃗ makes an angle of 24.0 ∘ counterclockwise from the +y-axis

Answer:

Explanation:

airspeed is speed with respect to air .

Let speed of airplane with respect to ground be V .

wind is blowing east at 55 km/h

airplane is heading north with speed V

Resultant of V and 55 km /h is 230 km/h

V² + 55² = 230²

V² = 52900 - 3025

V = 223.32 km/h

Let θ be the required angle

Tanθ = 55 / 223.32 = .246

θ = 14⁰ .

Answer /The wave with frequency 100 will have its crests farther apart as its wavelength Will be more or elevated.

Explanation:

For sound waves, the velocity ‘v’ is equal to the product of wavelength (λ) and frequency (f) i.e. (v = n × λ or v/n = λ). Therefore, frequency is indirectly proportional to the wavelength.

The sound wave with frequency 100 will have its crests farther apart from each other as frequency is indirectly proportional to the wavelength. The speed of a wave is uninfluenced by variation in the frequency. Therefore, the less frequency wave will have more wavelength.

The temperature gradient in the flow of direction is 294525 W.

A temperature gradient is the gradual variance in temperature with distance. The slope of the gradient is consistent within a material. A gradient is established anytime two materials at different temperatures are in physical contact with each other.

Q= T/( L/ KA)

Q= ( 1500 − 450) / 0.15 / 9.35v * 4.35)

   = 294525 W

Units of measure of temperature gradients are degrees per unit distance, such as °F per inch or °C per meter.

Many temperature gradients exist naturally, while others are created. The largest temperature gradient on Earth is the Earth itself. Q= T/Ka.

Therefore, The temperature gradient in the flow of direction is 294525 W.

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Answer: 70N

Explanation:

'and'= multiply

7N*10N=70N

The energy input at aphelion (farthest from the sun) is 92% of the intensity at perihelion (closest to the sun) because of the inverse-square law, which states that the intensity of radiation decreases with the square of the distance from the source.

However, the difference in energy input does not solely explain the difference in surface temperature from winter to summer.

Other factors, such as the Earth's axial tilt, atmospheric composition, and cloud cover also play a role in determining the surface temperature.

Evidence from climate models and observations indicate that changes in these factors, especially changes in the number of greenhouse gases in the atmosphere, can have a significant impact on global temperature patterns.

In conclusion, while the inverse-square law affects the intensity of solar radiation, it is not the sole factor in determining surface temperature, and the role of other factors must be considered to fully understand seasonal and climatic variations.

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Answer:

Suppose Archimedes weighed the crown (we'll say 2700 grams)

Then he put the crown on a string and weighed the crown in water and found its weight to be 2560 g.

That means that an equivalent volume of water weighed

2700 - 2560 = 140 grams

Then the density of the crown is 2700 / 140 = 19.3

So this is the density of pure gold and the crown could be considered to be made of pure gold with no other metals in its composition.

Archimedes weighed the crown, then suspended it on a rope and measured the volume of water it displaced in order to determine its weight, then he calculated the density of the crown and compared it with the density of the pure gold.

It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.

As given in the problem statement Greek scientist called Archimedes was asked to check the purity of the gold in a crown. He did this by comparing the density of the crown with the density of pure gold.

Archimedes weighed the crown, then suspended it on a rope and measured the volume of water it displaced in order to determine its weight.

Thus, he could have measured the density of an irregularly shaped object as a crown.

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Answer:

1000m

Explanation:

Pressure = p x g x h

0.1 x 10^6 = 10 x 10 x h

(0.1 x 10^6) / 100

h = 1000m

I hope my answer helps you.

The direction and magnitude of the net vector is:

When vector A with magnitude of 5 meters pointing west and

vector B with magnitude of 5 meters pointing east are added,

they will result in a net vector with a magnitude of the difference between the magnitudes of the vectors and a direction equal to the direction of the vector with the largest magnitude.

Since both vectors have the same magnitude (5 meters), the net vector will have a magnitude of 0 meters.

This means that the vectors completely cancel each other out and there is no net vector remaining.

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The period of the simple harmonic motion of the center of mass of the two spheres is approximately 0.770 seconds.

To find the period of the simple harmonic motion of the center of mass of the two spheres, we need to use the equation for the period of a mass-spring system:

T = 2π√(m/k)

where T is the period, m is the total mass of the system (two spheres), and k is the spring constant.

First, we need to find the total mass of the system:

m = 2m1 = 2(0.852 kg) = 1.704 kg

where m1 is the mass of one sphere.

Next, we need to find the spring constant:

k = 153 N/m

Now, we can calculate the period:

2π√(1.704 kg/153 N/m) ≈ 0.770 s

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The volume of the gas at 101.3 kPa would be approximately 651.25 cm³.

To calculate the change in volume of a gas from an initial pressure to a final pressure, we can use Boyle's law, which states that the pressure and volume of a gas are inversely proportional at constant temperature.

Boyle's law can be expressed as:

P1 * V1 = P2 * V2

Where:

P1 = Initial pressure (80.8 kPa)

V1 = Initial volume (817 cm³)

P2 = Final pressure (101.3 kPa)

V2 = Final volume (to be calculated)

Let's plug in the values into the equation and solve for V2:

80.8 kPa * 817 cm³ = 101.3 kPa * V2

V2 = (80.8 kPa * 817 cm³) / 101.3 kPa

V2 ≈ 651.25 cm³

Therefore, the volume of the gas at 101.3 kPa would be approximately 651.25 cm³.

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A meter rule is pivoted at its center. A glass block is hanged from one end and the rule is balanced horizontally by hanging masses of 100 g and 50 g at 60 cm and 80 cm marks respectively, the mass of the glass block. would be 50 gram

Mechanical advantage is defined as a measure of the ratio of output force to input force in a system, It is used to analyze the forces in simple machines like levers and pulleys.

Mechanical advantage = output force(load) /input force (effort)

As given a meter rule is pivoted at its center. A glass block is hanged from one end and the rule is balanced horizontally by hanging masses of 100 g and 50 g at 60 cm and 80 cm marks respectively.

In this situation, the axle act as the pivot point around both the load and effort balanced by their moment of force.

By Balancing the moment of forces on both sides

mass of the glass block × (distance from the center of pivot )= ( mass of all the hanging masses) ×( distance from the center of the pivot )

mass of the glass ×50 = 100×10 + 50×30

mass of the glass = 2500/50

                              =50 gram

Thus, the mass of the glass block. would be 50 gram

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The cat travels with an average speed to the right of 0.179 m/s.

Simply add up the squares of the other two coordinates to determine the distance between any point and an axis, and then square root the result. We square the y- and z-coordinates, discover their sum, and then square root our result to determine the distance from the x-axis.

The total time elapsed is the sum of the time to run from A to B and the time to run from B to C, which is:

total time = 20.0 s + 8.00 s = 28.0 s

The average velocity is defined as the displacement divided by the elapsed time, so we have:

average velocity = displacement / elapsed time

average velocity = 5.00 m / 28.0 s

average velocity = 0.179 m/s.

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The work done in stretching the spring from 50 cm to 80 cm is 67.5 J.

Hooke's law states that the force applied to an elastic material is directly proportional to its extension, provided its elastic limit is not exceeded.

To calculate the amount of work done by Hooke's law, first, we need to find the force constant of the spring.

Formula:

Where:

make k the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Finally, To find the work done in stretching the spring from 50 cm to 80 cm, we use the formula below.

Where:

Also, From the question,

Given:

Substitute these values into equation 3

Hence, The work done in stretching the spring from 50 cm to 80 cm is 67.5 J.

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Answer: The capacitor is fully charged when the voltage of the power supply is equal to that at the capacitor terminals. This is called capacitor charging; and the charging phase is over when current stops flowing through the electrical circuit.

Voltage depends on the amount of resistance, current according to the Ohm's law, and, by definition, is the measurement of electrical pressure.

According to the Ohm's Law,  the current through a conductor between two points is directly proportional to the voltage across the two points.

Mathematically,

V ∝ I

V = IR

where, R is the resistance of the conductor and I is the current flowing in the conductor. So, the voltage depends on the amount of resistance and current.

Also, Voltage is the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating a light.

Hence All of the above option in the given question are true.

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Answer:

52.33 repeating

Explanation:

Density is equal to the Mass of an object divided by its Volume. or p = m/V

Answer:

I think it's possible to know if more universes exist like how we found out that more galaxies exist.

The magnetic field at a point due to wires with distance r = C cm and carrying the current I is 2 mA is 0.29 T.

The magnetic field is produced over the magnet or current-carrying conductor. The Biot-Sarvat law is defined as the magnetic field produced due to the current-carrying conductor. The magnetic field is the vector quantity and the unit of the magnetic field is Tesla. It is the vector quantity.

Magnetic field, B = μ₀/2π (I/R), where  μ₀ is the permeability of the magnetic field, I is current, and R is the distance between two points.

B₁= μ₀/2π (I/R)

 = (1.26×10⁻⁶)×2×10⁻³/(2π×1.35m)

 = 0.29T

B₂ = 0.29T

The net magnetic field is B=B₁+B₂=0.58T.

Thus, the magnetic field is 0.29T. The left wire carries the current outward direction and the right wire carried the current inward direction and hence the direction magnetic field given by the right-hand thumb rule is inside.

B) By using the equation, F=q(v×B), where q is the charge, v is the velocity and B is the magnetic field. Path b is followed by a neutron as it is not deflected by a Magnetic field. The path a is the upward path followed by a negatively charged particle(electron) and Path C is the downward path followed by a positively charged particle(proton).

C) The circular conductor undergoes thermal expansion while it is a uniform magnetic field the direction of the current is a clockwise direction given by the Right-hand thumb rule.

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Answer:

a

The speed is   \(s = 5.857 m/s\)

b

The distance is  \(D = 22.4 \ m\)

Explanation:

From the question we are told that

     The speed of the banana is  \(v = 16 \ m/s\)

   The distance from my  location is  \(d = 8.2 \ m\)  

     The time taken is  \(t = 1.4 \ s\)

The speed of the ice cream is

          \(s = \frac{d}{t}\)

substituting values

        \(s = \frac{8.4}{1.4}\)

        \(s = 5.857 m/s\)

The distance of separation between i and Valdimir is the same as the distance covered by the banana

   So  

          \(D = v * t\)

substituting values

        \(D = 16 * 1.4\)

        \(D = 22.4 \ m\)

Answer:

I'm not %100 sure but it might be d

Explanation:

Answer:

The correct answer to this question is D) Density

EXPLANATION:

From Newton's second laws of motion, we know that the external force acting on a body is equal to the product of mass with the acceleration of the body.

Mathematically Force F = m × a

Here, m is the  mass of the body.

a is the acceleration of the body.

Hence, it is the force which is responsible for creating acceleration in an object.

In the given question, we have four factors i.e wind, friction, gravity and density.

Out of the four options, wind, friction and gravity can exert force on an object and can create acceleration in it.

The density of a body is defined as the mass of that body per unit volume.

Mathematically it is written as -

Density d = \frac{m}{v} where v is the volume occupied by the body.

Hence, density will not be responsible for the acceleration of the body.

Answer:

Density

Explanation:

Hope this helps and its different for everyone for me it was C what was it for you

Answer:

Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation.

Explanation:

A collision that meets these two criteria, and that results in a chemical reaction, is known as a successful collision or an effective collision.

Answer:

what

you need to elaborate

Answer: Can you please write question clearly.

Explanation:

The work done by the force on the block is approximately 311.2 Joules.

To calculate the work done by the constant force of magnitude F = 45 N over a distance of 8 m at an angle of 30 degrees to the horizontal, we need to find the component of the force that acts parallel to the displacement.

The horizontal component of the force can be calculated using trigonometry:

F_horizontal = F * cos(angle)

            = 45 N * cos(30 degrees)

            = 45 N * (√3 / 2)

            ≈ 38.9 N

Now, we can calculate the work done by the force using the equation:

Work = Force * Distance * cos(theta)

where theta is the angle between the force and the displacement.

Work = F_horizontal * Distance * cos(0)

     = 38.9 N * 8 m * cos(0)

     = 38.9 N * 8 m

     = 311.2 Joules

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A cell of inter resistance of 0.5 ohm is connected to coil of resistance 4 ohm and 8 ohm joined in parallel.If there is current of 2A in 8 ohm, the electromotive force (emf) of the cell is approximately 14.5 volts.

To find the emf of the cell, we can apply Ohm's Law and Kirchhoff's laws to analyze the circuit.

Given:

Resistance of the coil, R1 = 4 ohm

Resistance of the other resistor, R2 = 8 ohm

Current passing through the 8-ohm resistor, I = 2A

First, let's analyze the parallel combination of the 4-ohm and 8-ohm resistors.

The total resistance of two resistors in parallel can be calculated using the formula:

1/Rp = 1/R1 + 1/R2

Substituting the given values, we have:

1/Rp = 1/4 + 1/8

1/Rp = 2/8 + 1/8

1/Rp = 3/8

Rp = 8/3 ohm

Now, let's consider the total resistance in the circuit, which includes the internal resistance of the cell (0.5 ohm) and the parallel combination of the resistors (8/3 ohm).

R_total = R_internal + Rp

R_total = 0.5 + 8/3

R_total = 1.833 ohm

Now, we can find the emf of the cell using Ohm's Law:

emf = I * R_total

emf = 2 * 1.833

emf ≈ 3.667 volts

Therefore, the emf of the cell is approximately 3.667 volts.

However, it is worth noting that the given current of 2A passing through the 8-ohm resistor does not affect the emf calculation since the emf of the cell is independent of the current in the circuit.

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Answer:

Concussion is the most common type of mild traumatic brain injury and can have serious consequences

Explanation:

The magnitude of the resultant vector, representing the actual path of the boat, is approximately 1.42 m/s.

To find the magnitude of the resultant vector, we need to consider the boat's velocity and the velocity of the river. The boat's velocity is given as 0.75 m/s, and the river's velocity is given as 1.2 m/s.

Since the boat is moving in a river, we can think of the boat's velocity as a combination of two velocities: its own velocity and the velocity of the river. The resultant vector represents the actual path of the boat, considering both velocities.

To calculate the resultant vector, we can use vector addition. The magnitude of the resultant vector can be found by taking the square root of the sum of the squares of the boat's velocity and the river's velocity. Mathematically, we have:

Resultant magnitude = √(boat velocity^2 + river velocity^2)

Plugging in the given values, we have:

Resultant magnitude = √(0.75^2 + 1.2^2)

= √(0.5625 + 1.44)

= √2.0025

≈ 1.42 m/s

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