A 77.15 kg fisherman is sitting in his 26.69 kg fishing boat along with his 11.95 kg tackle box. The boat and it cargo are sitting at rest near the dock. He throws the tackle box toward the dock with a speed of 3.339 m/s. What is the recoil speed of the fisherman and his boat

Answer:

11:10 will be the time. reflection causes the object to be flipped when you see its image at the mirror

Several physical variables, including terrain, climate, and altitude, affect how natural resources are distributed. Resources can be divided into two groups: universal and specific.

The distribution of resources on earth is referred to by their geographic location or spatial arrangement. Alternatively, the location of the available resources. Every location has the potential to be rich in some resources that people want while being poor in others.

From a human standpoint, a renewable environment is everything that is taken from the ecosystem to satiate human needs & wants. A resource serves a live organism's demands from a more general biological or ecological standpoint.

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Answer:

No. When the distance is doubled, the gravitational force is 1/4 times as strong, therefore, the correct answer is she is not correct

Explanation:

The gravitational force is given as follows;

\(F} =G \times \dfrac{m_{1} \times m_{2}}{r^{2}}\)

Where;

m₁, and m₂ are the masses sharing the gravitational field

G = The universal gravitational constant

r = The distance between the centers of the two masses

Therefore, when the new distance, R = 2 × r, we get;

\(F} =G \times \dfrac{m_{1} \times m_{2}}{R^{2}} = G \times \dfrac{m_{1} \times m_{2}}{(2 \times r)^{2}} = G \times \dfrac{m_{1} \times m_{2}}{4 \times r^{2}} = \dfrac{1}{4} \times G \times \dfrac{m_{1} \times m_{2}}{r^{2}}\)

Therefore, when the distance is doubled, the gravitational force is one fourth as strong, therefore, she is not correct.

Answer:

The point at which rays or waves meet after reflection or refraction, or the point from which diverging rays or waves appear to proceed is called focal point

Answer:

750J

Explanation:

Given parameters:

Mass of the object   = 0.15kg

Velocity of the object  = 100m/s

Unknown:

Kinetic energy of the body  = ?

Solution:

The kinetic energy is the energy due to the motion of a body. It is mathematically expressed as;

        K.E  = \(\frac{1}{2}\) m v²  

m is the mass of the body

v is the velocity

 Now insert the parameters and solve;

     K.E  = \(\frac{1}{2}\)  x 0.15 x 100²   = 750J

Answer:

P(ressure) = d g h = density * gravity * height

P = 13600 * 9.8 * .25 = 33,300 Pa

Check:    1 atm = 76 cm = 760 mm height = 1.01 * 10E5 Pa

h = 1.01 * 10E5 / 9.8 * 13600 .758 m = 758 mm for 1 atm

250 / 758 = 1/3 atmosphere  = 33,700 Pa   close enough for estimates

(the pressure requested is 1/3 atmosphere where 1 atm = 760 mm Hg)

Answer:

Greta scored high in knowledge and vocabulary on the IQ test.

Explanation:

This statement highlights Greta's strengths in knowledge and vocabulary specifically, indicating that she performed well in these areas during the test. However, it does not provide information about her overall IQ score or her performance in other cognitive domains that may have been assessed in th

Answer:

v = √2gh

v = 7 m / s

Explanation:

For this exercise we can use the law of conservation of energy

starting point. In the roof

         Em₀ = U = m g h

final point. On the floor

          Em_f = K = ½ m v²

as there is no friction, the energy is conserved

          Em₀ = Em_f

          m g h = ½ m v²

          v = √2gh

In the exercise the height of the ceiling is not indicated, but in general the height of the ceiling of a house is h = 2.5 m

         v = √ (2 9.8 2.5)

         v = 7 m / s

The wavelength of the sinusoidal wave is 0.319 m/cycle.

To determine the wavelength of the sinusoidal wave, we can use the information provided about the frequency and speed of the wave.

The frequency of a wave is defined as the number of cycles completed by the wave in a given time period. In this case, the oscillator generating the wave completes 40.0 cycles in 30.0 seconds, so the frequency of the wave is

The speed of a wave is defined as the distance traveled by a given point on the wave in a given time period. In this case, a given maximum travels 4.25 m along the rope in 10.0 seconds, so the speed of the wave is

We can use the following formula to calculate the wavelength of the sinusoidal wave:

wavelength = speed / frequency

Substituting the values for the speed and frequency of the wave, we get:

wavelength = 0.425 m/s / 1.33 cycles/s

= 0.319 m/cycle

This is the final answer.

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We want to see if the Trust SSC can archive a higher maximum speed.

Remember the second Newton's law:

Force = mass*acceleration.

And acceleration is the rate of change of the velocity.

Assuming the mass of the Trust SSC does not change, increasing the force would mean that we increase the acceleration, and thus, larger velocities can be reached.

Now there are some problems.

How we do increase the force?.

It is hard to ve precise, mostly because we don't really know how the system works, we just got some given random data that we can't use without context.

Another thing we need to remember, this velocity is measured in only one mile. So because we have a fixed distance to measure it, we only can get larger velocities by increasing the acceleration.

And to increase the acceleration we can increase the force, as discussed, or, decrease the mass.

How to decrease the mass? Using lighter materials.

Now let's see an example on how decreasing the mass would affect the acceleration.

Then an aproximate force is given by:

F = 10,700kg*20.8 m/s^2 = 222,560 N

Now, if we decrease the mass a little bit, for example to 10,000kg, and we do not change the force, the new acceleration will be given by:

10,000kg*a = 222,560 N

a = (222,560 N)/(10,000kg) = 22.3 m/s^2

So decreasing the mass a little, increases the acceleration, which would make a larger maximum velocity.

Concluding, there are two ways of increasing the maximum velocity:

Increasing the force.

Decreasing the mass of the car.

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Answer:

Radiation transfers heat through radiative processes and does not require a medium to take place.

A thermos flask is used to keeping a liquid hot for a long duration of time. But the above processes between thermos flasks and surroundings lead to loss of stored heat. To prevent these processes, the walls of the thermos flask are double layered with a vacuum between them. The vacuum does not allow the heat transfer between the hot liquid inside and the cold air outside. The processes of conduction and convection are unable to occur because of this insulation. This is the basic working principle of a thermos flask by which the contents of the thermos flask remain hot for a long duration of time.

proper explanation is here.

noob anyways I can't get u vape because first reason I lost ur money and second I felt bad for losing ur and I will not on yourself as I am thinking of a number my number is a multiple of 6.What other numbers must my number is a multiple of 6.What other numbers

Answer:

a) Vi = 137.2 m/s

b) h = 960.4 m

Explanation:

a)

In order to find the initial speed we will use first equation of motion:

Vf = Vi + gt

where,

Vf = Final velocity = 0 m/s (since ball stops at highest point)

Vi = Initial Velocity = ?

g = - 9.8 m/s² (negative sign for upward moyion)

t = time interval = 14 s

Therefore,

0 m/s = Vi + (-9.8 m/s²)(14 s)

Vi = 137.2 m/s

b)

Now, we use second equation of motion to find height (h):

h = Vi t + (1/2)gt²

h = (137.2 m/s)(14 s) + (1/2)(-9.8 m/s²)(14 s)²

h = 1920.8 m - 960.4 m

h = 960.4 m

Answer: 13 N

Explanation: You have to use F=m * g

A force acts on a body of mass 13 kg initially at rest The force acts for 10 seconds, and once it quits, the body covers 60 m in the next 6 seconds .  The force that acted on the body 13 N.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given in the question,

Velocity = 60/6

Velocity = 10 m/sec

acceleration = Velocity / time

acceleration = 10/10

acceleration = 1 m/sec²

Force = mass. acceleration

Force = 13 . 1

Force = 13 N

A force acts on a body of mass 13 kg initially at rest The force acts for 10 seconds, and once it quits, the body covers 60 m in the next 6 seconds .  The force that acted on the body 13 N

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When light is refracted, the speed and wavelength of light change.

When light travels from one medium to another, such as from air to water or from air to glass, it undergoes refraction. Refraction is the bending of light as it passes through different substances with different optical densities.

During refraction, the speed and wavelength of light can change, while the frequency remains constant.

Speed of light: The speed of light is different in different media. It is generally slower in denser media like water or glass compared to its speed in vacuum or air. The speed of light in a medium is given by the equation:

v = c/n,

where v is the speed of light in the medium, c is the speed of light in vacuum (approximately 3 × 10^8 meters per second), and n is the refractive index of the medium.

Wavelength of light: The wavelength of light also changes when it undergoes refraction. The wavelength is the distance between two consecutive peaks or troughs of a light wave.

The relationship between the wavelength of light in a medium and its wavelength in vacuum is given by:

λ = λ₀/n,

where λ is the wavelength of light in the medium, λ₀ is the wavelength of light in vacuum, and n is the refractive index of the medium.

When light is refracted, the speed and wavelength of light change, while the frequency remains constant.

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Explanation:

Note that resonance can only occur when the natural frequency is greater than the damping rate, multiplied by the square root of 2. If the damping is too large, then resonance cannot occur.

The true statement about the input and output forces include the following:

This is defined as an influence which can cause an object with mass to change its velocity.

For a screw to be inserted into a block of wood, the input force on the screw has to be greater than the output force as a result of both forces being in opposite direction to one another.

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Answer:

Explanation:

the SI base unit of mass length and time

mass =kg =kilogram

length=m=meter

time=s=second

Answer:

mass: kilogram length: metre time: seconds

Explanation:

Answer:

32.32857

Explanation:

Searched on the web

Explanation:

Newton's Third Law of Motion

Newton's Third Law of Motion explains that forces always come in action-reaction pairs. The Third Law states that for every action force, there is an equal and opposite reaction force.

Answer:

trasvere wave

Explanation:

first one

Answer:

a compound

Explanation:

a compound

hope this helps

Answer:

When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).

Explanation:

The slope angle of the road is approximately 7.64°.

we can calculate the slope angle of the road by following these steps:

Step 1: Convert the car's speed to meters per second.

60 km/h * (1000 m/km) / (3600 s/h) = 16.67 m/s

Step 2: Calculate the work done by the engine per second (power) to overcome air resistance.

Power = Force * velocity

Power_air_resistance = 450 N * 16.67 m/s = 7500.5 W

Step 3: Calculate the total power supplied by the engine in watts.

38 kW = 38000 W

Step 4: Determine the power used to overcome the slope.

Power_slope = Total power - Power_air_resistance

Power_slope = 38000 W - 7500.5 W = 30499.5 W

Step 5: Calculate the force exerted by the car to ascend the slope.

Force_slope = Power_slope / velocity

Force_slope = 30499.5 W / 16.67 m/s = 1830 N

Step 6: Calculate the gravitational force acting on the car.

Force_gravity = mass * gravity

Force_gravity = 1400 kg * 9.81 m/s² = 13734 N

Step 7: Calculate the sine of the slope angle.

sin(slope_angle) = Force_slope / Force_gravity

sin(slope_angle) = 1830 N / 13734 N = 0.133

Step 8: Find the slope angle using the arcsine function.

slope_angle = arcsin(0.133) ≈ 7.64°

So, the slope angle of the road is approximately 7.64°.

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I think tomato is acid

Answer:

acid

Explanation:

tomatoes contain acids such as citric acid, ascorbic acid, abscisic acid etc.

this indicates that they are  acidic

c. The amount of energy transferred between 2 groups of molecules at different temperatures.

Heat transfer is given with a difference of temperatures

The resistive force F acting on a sphere of radius r traveling with speed v through a liquid is given by the equation

F = 6πηrv ,where η is a constant. The SI units of η  is  kg m^2s^-1.So option B is correct.

Let's analyze the equation again and determine the correct SI units of η.

In the equation F = 6πηrv, the resistive force F is given in newtons (N). The radius r is given in meters (m), and the velocity v is given in meters per second (m/s).

Now let's break down the equation and determine the SI units of η.

F = 6πηrv

The units on the right-hand side are:

6π - Dimensionless (no units)

η - Unknown SI units

r - Meters (m)

v - Meters per second (m/s)

To match the units of force (N) on the left-hand side, the units of η must be:

N = η * (m * m/s) = η * (m^2/s)

Therefore, the SI units of η are kg m^2s^-1.

Among the given options:

A. kg m^-1s^-2 - Incorrect, the units are not consistent.

B. kg m^2s^-1 - Correct, the units match the SI units of η.

C. kg m^1s^1 - Incorrect, the units are not consistent.

D. kg^-1s^-3 - Incorrect, the units are not consistent.

So the correct answer is B. kg m^2s^-1.

Therefore option B is correct.

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