Two persons A and B are walking with the speed of 5km/h and 6km/h respectively in the same direction. Find how far will B be from A after 2 hours??

The acceleration of the particle at time 3 sec is 8 m/s².

The acceleration of the particle is the change in velocity of the particle with time and it is calculated as follows;

a = dv/dt

where;

v = dx/dt

where;

v (x) = d (7t + 4t² )/ dt = 7 + 8t

v (y) = d (5t)/dt = 5

The acceleration of the particle at time 3 sec is calculated as;

a (x ) = dv(x) / dt = d (7 + 8t) / dt = 8

a (y) = dv(y) / dt = d (5) / dt = 0

Hence, a = 8 m/s²

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The particles of water vibrate and then return to the same general position, while the wave travels away from the disturbance without returning. The correct option is B

Wave is a disturbance that travels through space and matter, transferring energy from one point to another.

Waves can occur in many different forms such as:

The movement of the wave is characterized by its wavelength frequency and amplitude. The wave itself does not move but rather the energy it carries moves through space. The particles in a medium through which the wave is traveling such as the water in a water wave or the air in a sound wave, move in a circular or back-and-forth motion.

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Answer:

a) transparent

b) transparent

c) opaque

Explanation:

In the first one, the light rays go completely through, so it is transparent.

The second one I'm not too sure about. It is refraction so it's going through a different material, but the fact that it went through makes me say transparent.

Last one, the light rays are reflecting off the surface so it's opaque.

Please feel free to correct me if I'm wrong. This is just my understanding

The type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling is called a transverse wave.

A transverse wave is a type of wave that moves perpendicular to the direction of motion of the energy. The waves that move the particles in a perpendicular direction are called transverse waves. A transverse wave is a wave that moves perpendicular to the direction of motion of the energy.

In transverse waves, particles move perpendicular to the direction of the wave. Examples of transverse waves include waves on a string or ripples on the surface of a liquid. Longitudinal waves, on the other hand, are waves in which the particles of the medium vibrate parallel to the direction of wave propagation. Examples of longitudinal waves include sound waves and seismic waves.

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Answer:Thermometer

Explanation:

The three essential diagnostic features of anorexia nervosa, as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), are:

It is important to note that these diagnostic features must be present and significantly impair the individual's functioning in order to meet the criteria for anorexia nervosa. Additionally, there may be other associated features and behaviors,

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The process by which a neutron produced during fission bombards a neighboring nucleus to produce a different nucleus and more neutrons is called Nuclear Chain Reaction.

Nuclear Chain Reaction is a self-sustaining sequence of fission reactions triggered by the release of neutrons from earlier fission. A nuclear chain reaction occurs when a single neutron initiates a series of nuclear fissions, which releases more neutrons that are allowed to continue the reaction.

This process leads to the formation of more neutrons and the nuclei undergo splitting. The neutrons produced collide with other nuclei and produce more neutrons, leading to a chain reaction

.The neutron released during fission bombards a nearby nucleus, splitting it apart and releasing more neutrons.

These neutrons bombard other nuclei, causing more fissions and more neutrons to be produced. As the chain reaction continues, more and more energy is released, leading to a nuclear explosion.

The nuclear chain reaction plays an essential role in nuclear power generation, as it is used to produce energy in nuclear reactors. The process is also used in nuclear weapons to create explosions.

In conclusion, the process by which a neutron produced during fission bombards a neighboring nucleus to produce a different nucleus and more neutrons is called Nuclear Chain Reaction.

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The Floating weight is affected by the buoyancy force.

As we clearly know that in buoyancy force the weight or any other object will float over the surface of the water and this force is known as buoyancy force. The reason behind the Buoyancy force is that the object seeming lighter in water.

The Buoyancy force can be define as the upward force exerted by the fluid on any weight or any object placed in it. The Buoyancy force is directly proportional to the density of the immersed fluid. The Buoyancy force is also proportional to the volume of the object immersed in the fluid.

So we can conclude that the floating weight is affected by the buoyancy force.

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When you walk, you are more likely to be able to walk at a constant velocity. Your walking speed varies as you walk in real-life scenarios, but you aim to maintain a steady pace or velocity. This is how you can keep track of time and distance traveled.

When you walk at a constant velocity, you move forward with a steady speed and direction. The velocity is defined as the rate at which an object's position changes with respect to time. When you walk, you typically aim to move forward with a constant velocity, which is the speed at which you walk and the direction you walk. In certain situations, a constant velocity is ideal, such as when you are traveling long distances and want to arrive at your destination at a certain time. To ensure that you walk at a constant velocity, you need to maintain a steady pace by keeping your stride consistent and avoiding unnecessary stops or changes in direction. Walking with a constant velocity involves maintaining a steady speed and direction. It is possible to achieve this by maintaining a constant pace, keeping your stride consistent, and avoiding any unnecessary stops or changes in direction.

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The Earth's rotation is slowed down as a result, although there is a slight price to pay. Due to the conservation of angular momentum, when the Earth's rotation slows down, something else must acquire angular momentum to compensate.

The angular momentum of an asteroid is obtained from its rotation rate, which is shown by the period of its light curve, its shape.

Which is suggested by the amplitude of its light curve, and, whenever possible, its size, which is indicated by polarimetry or radiometry.

However, if there are no external torques, a fundamental principle of physics states that energy and angular momentum are preserved.

Therefore, The moon is therefore traveling away from the Earth while gaining energy and angular momentum.

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The equivalent resistor R4060 is 100 ohm, and equivalent resistor R606045 is 165 ohm.

a) To find the equivalent resistor R4060 of resistors 40 ohm and 60 ohm, you can use the formula for resistors in series. When resistors are connected in series, their resistances add up. So, R4060 = 40 ohm + 60 ohm = 100 ohm.

b) To find the equivalent resistor R606045 of resistors 60 ohm, 60 ohm, and 45 ohm, you can use the same formula. R606045 = 60 ohm + 60 ohm + 45 ohm = 165 ohm.

c) To find the resistor Rab of the circuit, we need more information about how the resistors are connected. If the resistors are connected in series, then Rab would be the sum of all the resistors in the circuit. If the resistors are connected in parallel, we need to use a different formula to find the equivalent resistance. Please provide more details about the circuit to determine the value of Rab.

d) The question seems to be incomplete. Please provide the full question so that I can assist you further.

Therefore,
a) Equivalent resistor R4060 = 40 ohm + 60 ohm = 100 ohm.
b) Equivalent resistor R606045 = 60 ohm + 60 ohm + 45 ohm = 165 ohm.
c) More information about the circuit is needed to determine the value of resistor Rab.
d) Incomplete question, please provide more details.

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The bed slope required to produce the same tractive force on the bed with a discharge of 365 million m³/day can be determined using the given equation for mean velocity variation.

Bed width (B) = 600 m

Initial discharge (Q1) = 120 million m³/day

Initial bed slope (S1) = 7.5 cm/km

The equation for mean velocity (v) = 120 y^(2/3), where y is the water depth.

To find the bed slope (S2) for a new discharge (Q2) of 365 million m³/day, we need to equate the tractive force on the bed for both scenarios.

The tractive force on the bed can be represented as:

Tractive force =\((Rho * g * S * B * v^2) / (R * D50)\)

where:

Rho is the density of water,

g is the acceleration due to gravity,

S is the bed slope,

B is the bed width,

v is the mean velocity, and

R and D50 are constants.

Since we are comparing two scenarios with the same tractive force, the following equation can be formed:

\((Rho * g * S1 * B * v1^2) / (R * D50) = (Rho * g * S2 * B * v2^2) / (R * D50)\)

Simplifying the equation:

\(S1 * v1^2 = S2 * v2^2\)

Substituting the given values:

\(S_1 * (120 y_1^{(2/3))^2 = S_2 * (120 y_2^{(2/3))^2\)

Rearranging the equation:

\(S_2 = S_1 * (120 y_1^{(2/3)})^2 / (120 y_2^{(2/3)})^2\)

We know that Q = B * v * y, where Q is the discharge. Rearranging this equation gives:

\(v = Q / (B * y)\)

Substituting the values for Q1 and Q2, we have:

\(v1 = 120 million / (B * y1)\)

\(v2 = 365 million / (B * y2)\)

Substituting the expressions for v1 and v2 in the equation from step 7:

\(S_2 = S_1 * (120 y_1^{(2/3)})^2 / (120 y_2^{(2/3)})^2\)

\(= S_1 * (120^2 * y_1^{(4/3)}) / (120^2 * y_2^{(4/3)})\)

\(= S_1 * (y_1^{(4/3)} / y2^{(4/3)})\)

Since the bed material just begins to move when Q = 120 million m³/day, the velocity can be expressed as \(v = v_1 = 120 y1^{(2/3)}.\)

Therefore, the equation for S2 becomes:

\(S_2 = S_1 * (y_1^{(4/3)} / y_2^{(4/3)})\)

=\(S_1 * (120^{(4/3)} * y_1^{(4/3) }/ (120 y_2^{(2/3)})^{(4/3))\)

\(= S_1 * (120^{(4/3)} * y1^{(4/3)} / (120^{(4/3)} * y2^{(4/3)}))\)

\(= S_{1 * (y_1^{(4/3)} / y_2^{(4/3)})\)

Finally, substituting the values for y1 and y2:

\(S_2 = S_1 * (y_1^{(4/3) }/ y_2^{(4/3)})\)

= \(S_1 * (y_1^{(4/3)} / (365 / 120)^{(4/3)})\)

Now, you can substitute the values for y1, and S1, and calculate S2 accordingly.

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Answer: See answers below.

Explanation: In this problem, we must be clear about the concept of weight. Weight is defined as the product of mass by gravitational acceleration.

We must be clear that the mass is always preserved, that is, the mass of 15 [kg] will always be the same regardless of the planet where they are.

where:

W = weight [N] (units of Newtons)

m = mass = 15 [kg]

g = gravity acceleration [m/s²]

Since we have 9 places with different gravitational acceleration, then we calculate the weight in each of these nine places.

Mercury

Venus

Moon

Mars

Jupiter

Saturn

Uranus

Neptune

Pluto

In this problem, we must be clear about the concept of weight. Weight is defined as the product of mass by gravitational acceleration.

We must be clear that the mass is always preserved, that is, the mass of 15 [kg] will always be the same regardless of the planet where they are.

where:

W = weight [N] (units of Newtons)

m = mass = 15 [kg]

g = gravity acceleration [m/s²]

Since we have 9 places with different gravitational acceleration, then we calculate the weight in each of these nine places.

Mercury

Venus

Moon

Mars

Jupiter

Saturn

Uranus

Neptune

Pluto

Answer:

Increase height

Increase mass

The frequency of oscillation for the spring system of part i is 0.719 Hz.

Explanation: The frequency of a system is a measure of the number of cycles it completes per second, which is proportional to the square root of the ratio of the spring constant to the mass of the system.

In this case, the spring constant is given as k=2.5 N/m and the mass of the system is given as m=0.35 kg. Plugging these values into the equation for frequency, we get frequency (f) = 1/2π * sqrt(k/m) = 1/2π * sqrt(2.5/0.35) = 0.719 Hz. This result can be rounded to three decimal places, giving us 0.719 Hz.

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Answer:

Male sperm

Female egg

Explanation:

Answer:

for the last part, they would form a new organism

Explanation:

The two haploid cells will fuse together to form a diploid cell called a zygote.

On a wet road, you would need to adjust your speed to 5-10 mph slower than normal.So option a is correct.

On a wet road, you should adjust your speed to ensure that you can drive safely. This is because water causes tyres to lose traction with the road. If you increase your speed on a wet road, you'll have less control over your vehicle. When the road is wet, your vehicle's tyres may not be able to grip the road as well as they would on a dry road.When driving on wet roads, you should maintain a safe distance between your vehicle and the car in front of you. This provides you with enough space to stop safely if the car in front of you stops suddenly.In addition, when driving on wet roads, it's best to avoid sudden steering or braking movements. This will cause your car to skid. Therefore, you should slow down and move more gently on a wet road, and always adjust your speed to 5-10 mph slower than normal.Therefore option a is correct.

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The magnitude of the net force acting on the kayak is 107.8 N.

Starting with a stationary kayak, the combined mass of the kayak and the person inside is 73 kg. After 0.41 m of paddling, the kayak accelerates to a speed of 0.60 m/s.

Using Newton's second law, we can calculate the magnitude of the net force acting on the kayak.

The equation for net force is F=ma, where F is the net force, m is the mass of the kayak and person, and a is the acceleration.

We know that m is 73 kg, and a is 0.60 m/s divided by 0.41 m, which is 1.46 m/s2.

Plugging these values into the equation, we get a net force of 107.8 N. Therefore, the magnitude of the net force acting on the kayak is 107.8 N.

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Answer: Wind follows a pattern because the Earth is spinning in one motion. If we were spinning in one way then another we would have one day go by then the spinning cycle would change and we would have to go through that day all over again, it would not be logical because then we would be in the same season as well, we would be in one season for the rest of our lives until we died.

I don't know if this was helpfull or not but I hope it was somewhat close to helpful? If it is not then please do not report this, I am sorry if this was the least bit helpful.

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When an aluminum rod is placed in the middle of an inductor, the resonance frequency of the LRC circuit should: decrease

The inductance of an inductor depends on its physical dimensions and the material it is made of. Placing an aluminum rod in the middle of an inductor changes its effective inductance due to the presence of the conductive material. Since the effective inductance is reduced, the resonance frequency of the LRC circuit is decreased. This is because the resonance frequency depends on the values of the inductance, capacitance, and resistance in the circuit, and a decrease in inductance results in a decrease in the resonance frequency. This effect can be utilized in various applications, such as in proximity sensors and metal detectors.

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The net force on an object is zero that is pulled with forces of 80 newtons to the right and 80 newtons to the left.

Net force is equal to sum of all the force acting on a body.

The formula for net force if n force are acting on it:

                       \(F_{net}=F_{1}+ F_{2}+F_{3}.....F_{n}\)

In this case the two forces are equal but opposite in direction.

Putting the values in the formula

\(F_{net} = 80+(-80)\) (since forces are equal but opposite)

\(F_{net}= 0\)

So the net force acting on the object is zero because the forces are equal and opposite.

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The net force on an object that is pulled with forces of 80 newtons to the right and 80 newtons to the left is: 0 newtons

To solve this problem the formula of net force and the procedure that we have to use is:

Fr = ∑F

Where:

Information about the problem:

Applying the resultant force formula we get:

Fr = ∑F

Fr = F1 + F2

Fr = 80 newtons - 80 newtons

Fr= 0 newtons

We can say that the resultant force is the algebraic sum of all the forces acting on a body.

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Answer:

The length traveled by an object moving in any direction or even changing direction is called distance. The location of an object in a frame of reference is called position. For straight line motion, positions can be shown using a number line. The separation between original and final position is called displacement

Explanation:

good luck

Hazardous vortex turbulence, also known as wake turbulence, is created by the wingtip vortices generated by an aircraft in flight. These wingtip vortices are caused by the pressure differential between the upper and lower surfaces of the wing. The air above the wing flows faster and generates low pressure while the air below the wing moves slower and creates high pressure. This pressure differential creates vortices that trail behind the aircraft.

The generation of these vortices is directly related to the lift being generated by the aircraft. As an aircraft generates lift, the intensity and strength of these vortices increase. Large aircraft, in particular, generate significant amounts of lift and therefore create larger and more hazardous vortex turbulence.

When other aircraft fly through this wake turbulence, they can experience significant disturbances in their flight path, including sudden changes in altitude and roll. This can pose a serious safety risk, particularly during takeoff and landing when aircraft are at lower altitudes and speeds. As a result, air traffic controllers must carefully manage the spacing between aircraft to prevent hazardous encounters with wake turbulence.

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Answer:

An interval is a distinct measure of time or the physical or temporal distance between two things.

Explanation:

Answer:

It would take 5

18.3

Explanation:

It depends on how fast it comes and the timing

The change in length of the bridge between the coldest and hottest days is approximately 31.392 centimeters.

To calculate the change in length, we can use the formula: ΔL = α * L0 * ΔT, where ΔL is the change in length, α is the coefficient of linear expansion, L0 is the initial length, and ΔT is the temperature difference. Plugging in the values: α = 12.0 x 10^-6/K, L0 = 148.0 meters, and ΔT = 41.0°C - (-29.0)°C = 70.0°C, we can calculate ΔL as follows: ΔL = (12.0 x 10^-6/K) * (148.0 meters) * (70.0°C) = 0.12408 meters. Converting to centimeters, the change in length is approximately 31.392 centimeters.

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Answer:

50 kmph

Explanation:

300 / 6 = 50

☁️ Answer ☁️

Internal radiation exposure hazards result from radioactive material that gets inside the body when you breathe it

Hope it helps.

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