The water pressure at the bottom of the Marianas Trench is approximately 1,100 kPa. With how much force would the water pressure at the bottom of the Marianas trench push on a fish with a surface area of 0.5m2 ?

Answer:

20,000N

explanation:

a body can only float when the upthrust

balances with the weight of the body,

hence in accord with the question,as the body floats the upthrust is equal to it's weight.

We have that For a floating boat weighing 20,000N,  the size of the upthrust is

20,000N

From the question we are told

a floating boat weighs 20,000 N what is the size of the upthrust

Generally the equation for the upthrust is mathematically given as

U=W

The upthrust is Directly equal the weight it suspends or acts on in water or any liquid

Since

The upthrust is Directly equal the weight it suspends or acts on in water or any liquid

Therefore

The Upthrust must be Directly equal the Weigh

Therefore

For a floating boat weighing 20,000N,  the size of the upthrust is

20,000N

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Answer:

B) Mass is a measurement of force

Explanation:

Mass is not a measurement of force, mass is a measurement of the amount of matter in an object.

Answer:

If frequency is constant, wavelength will get longer as speed increases. Here is an animation of a wave changing speed. The green dots and line show that frequency is constant on both mediums, but the speed and wavelength both change.

Answer:

0.610m/s^2

Explanation:

Acceleration is defined as the ΔV/ΔT. In this case, the change in velocity is 1.43-0.32=1.11 m/s. The change in time is 1.82 seconds. Plugging in what we know, it will result in an acceleration of 0.610 m/s^2.

Answer: its b bro

Explanation:

ajafa'jfbA'FJ

If the engine of a boat on a river is turned off while the boat is moving with a steady speed, several things would happen Loss of propulsion,Drifting,Loss of steering control and Potential hazards.

Loss of propulsion: Without the engine running, the boat would lose its power source for propulsion. The boat would gradually slow down and eventually come to a stop unless other external forces, such as currents or wind, continue to move it.

Drifting: Once the boat comes to a stop, it would start to drift with the current of the river or be affected by wind forces. The direction and speed of the drift would depend on the strength and direction of the current or wind.

Loss of steering control: When the engine is turned off, the boat's steering mechanism, such as a rudder, would also lose power. Without the ability to steer, the boat would follow the course determined by the river's current or the wind direction.

Potential hazards: Depending on the surroundings and the current conditions, there could be potential hazards for a boat that is no longer under power. These hazards might include other vessels, obstacles, shallow areas, or strong currents. The boat's crew would need to take appropriate actions to ensure the safety of the boat and its occupants.

It's important to note that the specific behavior of the boat after the engine is turned off can vary depending on factors such as the size and design of the boat, the strength and direction of the current, and the presence of wind or other external forces.
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The point on the image that is the source of the sound / sound waves travelling would be B. 2.

When a sound is produced, such as a musical note or spoken word, it initiates a disturbance at the source, which sets the surrounding particles in motion. As these particles oscillate back and forth, they generate regions of compression and rarefaction, resulting in the formation of longitudinal waves.

The propagation of sound waves emanates from a central source, radiating outward in a spherical pattern, thereby creating an expanding wavefront. This fundamental principle of wave behavior stems from the point-source nature of sound waves, wherein they originate from a central locus and disperse in all directions.

This central source in the image is 2.

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The car will move at a constant speed once it is unleashed, as is assumed. Hence, there is no acceleration. Newton's second law states that a straight line along zero will appear on the graph if F=ma=m(0)=0, F=0.

Acceleration is the rate at which an object changes its velocity. It is a vector quantity, which means it has both magnitude and direction. The standard unit of acceleration is meters per second squared (m/s²).

Acceleration can be caused by forces such as gravity, friction, and electromagnetism. When a force acts on an object, it causes a change in the object's motion, resulting in acceleration.

The relationship between acceleration, velocity, and time is described by the equation a = (v_f - v_i) / t, where a is acceleration, v_f is final velocity, v_i is initial velocity, and t is time.

The effects of acceleration can be seen in everyday experiences, such as feeling pushed back into your seat when a car accelerates or feeling weightless during freefall. Understanding acceleration is important in fields such as physics, engineering, and transportation.

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Answer:

wastes

Explanation:

Each of your kidneys is made up of about a million filtering units called nephrons. Each nephron includes a filter, called the glomerulus, and a tubule. The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.

Answer:

sweat

Explanation:

The tension on the connecting string of the two blocks is 6 N.

The given parameters;

The net force on the block along the horizontal is calculated as follows;

\(F + \mu_2Mg - \mu_1 (2M)g = a(M+2M)\\\\10 \ + \ 0.3\times 1\times 9.8 \ - \ 0.2\times 2\times 9.8 = 3a\\\\9.02 = 3a\\\\a = \frac{9.02}{3} \\\\a = 3 \ m/s^2\)

The tension on the connecting string is calculated as follows;

T = m₁a

T = (2M)a

T = 2 x 3

T = 6 N

Thus, the tension on the connecting string of the two blocks is 6 N.

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The velocity of the boy skater if the mass is 50kg is 3 m/s.

The GUESCA method stands for Given, Unknown, Equation, Substitution, Calculation, and Answer. Let's use this method to solve the problem.

Given:

Mass of the girl (m₁) = 30 kg

Velocity of the girl (v₁) = -5 m/s (negative sign indicates backward direction)

Mass of the boy (m₂) = 50 kg

Velocity of the boy (v₂) = unknown (to be calculated)

Unknown:

Velocity of the boy (v₂)

Equation:

According to the law of conservation of momentum, the total momentum before the interaction is equal to the total momentum after the interaction. Mathematically, it can be expressed as:

(m₁ * v₁) + (m₂ * v₂) = 0

Substitution:

Plugging in the given values, we have:

(30 kg * -5 m/s) + (50 kg * v₂) = 0

Calculation:

Simplifying the equation, we get:

-150 kg·m/s + 50 kg·v₂ = 0

Rearranging the equation to solve for v₂, we find:

50 kg·v₂ = 150 kg·m/s

v₂ = 150 kg·m/s / 50 kg

v₂ = 3 m/s

Answer:

The velocity of the boy skater is 3 m/s.

Using the GUESCA method, we identified the given and unknown quantities, wrote the relevant equation, substituted the values, performed calculations, and obtained the answer.

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Answer:

please see the attached pic

Explanation:

A galvanometer is an instrument that measures small electric currents using the interaction between a coil and a magnet. It finds applications in current measurement and in various electrical and electronic systems.

A galvanometer is a device that detects and measures small electric currents. The instrument works on the principle of the magnetic field, which is generated by an electric current. The coil is suspended on a torsion-free suspension thread between the poles of a permanent magnet. The needle is fixed on the axis and moves along a graduated scale on a metal plate.

Galvanometer working principle

Applications of galvanometer :

Galvanometers are widely used in various electrical and electronic circuits for detecting small current flows. They are used for the following purposes:

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Answer:

Acceleration= 4 m/s

Explanation:

F = ma

20 N = (5kg)(a)

4m/s = a

Answer:

e) 1.04

Explanation:

The angular displacement in radians is 15.7 radians.

The angular displacement of the object Δθ = θ - θ₀ where

Now since the object moves 900 degrees in 2 minutes, we convert this displacement to radians, since this is its final position.

So, θ = 900° = 900° × 2π/360°

= 90 × 2π/36

= 15 × 2π/6

= 5 × 2π/2

= 5π rad

Since the object starts from rest, θ₀  = 0 rad

So, the angular displacement, Δθ = θ - θ₀

Substituting the values of the variables into the equation, we have

Δθ = θ - θ₀

Δθ =  5π - 0

Δθ =  5π

Δθ =  5 × 3.14

Δθ =  15.7 radians

So, the angular displacement in radians is 15.7 radians.

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Answer:

Inside an atom are protons, electrons and neutrons. The protons are positively charged, the electrons are negatively charged, and the neutrons are neutral. Therefore, all things are made up of charges. For example, if you rub your shoe on the carpet, your body collects extra electrons.

Explanation:

The increase or decrease in the number of positive or negative charges changes the overall charge of the body.

Electric charge is the physical property of matter that causes them to experience a force in the presence of the electric field.

The net charge of a body is neutral when a number of positive and negative charges is equal in the body.

Therefore, the increase or decrease in the number of positive or negative charges changes the overall charge of the body.

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The kinetic energy of the racing car is approximately 849952.4 J joules.

Kinetic energy is simply a form of energy a particle or object possesses due to its motion.

It is expressed as;

K = (1/2)mv²

Where m is mass of the object and v is its velocity.

Convert the speed from kilometers per hour to meters per second since the units of mass and velocity need to be consistent.

We know that 1 km/h = 0.27777 m/s, so:

120 km/h x (0.27777 m/s/km/h) = 33.3336 m/s (rounded to 4 decimal places)

Now we can substitute the values into the formula:

Kinetic Energy = (1/2) × 1530 kg x (33.3336 m/s)²

Kinetic Energy = 849952.4 J

Therefore, the kinetic energy is approximately 849952.4 joules.

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Answer:

wait

Explanation:

Answer:F = 255 N

Explanation:

It is given that,

Mass of the boy, m = 25 kg

Acceleration of the elevator,  

The elevator is accelerating in upward direction. The net force acting on the boy is given by :

g is the acceleration due to gravity

F = 255 N

The scale reading is 255 N as it begins to accelerate upward. hence, this is the required solution.

(1) The distance of the image formed by the lens is determined as 6 cm.

(2) The image formed is real.

The distance of the image formed by the lens is calculated by applying the following formula as follows;

1/f = 1/v + 1/u

where;

The distance of the image formed by the lens is calculated as;

1/v = 1/f - 1/u

1/v = 1/2 - 1/3

1/v = 1/6

v = 6 cm

Since the sign of the image of the image is positive, the image formed is real.

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Answer:

Blood is moved away from the brain

Explanation:

Took the test

Answer:

The temperature when the resistance is 9.61 ohms is -17.3°C. The resistance of the wire when the temperature is 45°C is 11.45 ohms.

Explanation:

Answer:

Explanation:

m

The diagram of the electromagnetic spectrum representing the targeted wavelength is attached below.

Electromagnetic spectrum represents the complete range of all the wavelengths of radiations that travel in the form of waves, containing both electric and magnetic fields.

The wavelengths of visible light span from 400 nm to 700 nm. The wavelength and frequency of violet light are 400 nm and 7.5×10¹⁴ Hz, respectively. The wavelength and frequency of red light are 700 nm and 4.3×10¹⁴ Hz, respectively.

Infrared light, microwaves, radio waves, and television waves are examples of electromagnetic waves with longer wavelengths and lower frequency.

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