Ernest rutherford was a prominent scientist who contributed significantly to the theory of atomic structure. True or false?.

Answer:

94600kgm/s

Explanation:

Linear momentum of a body can be calculated using the formula;

P = mv

Where;

P = linear momentum (Kgm/s)

m = mass of body (kg)

v = speed of the moving body (m/s)

According to the provided information in the question, m = 110kg, v = 860m/s

P = 110 × 860

P = 94600kgm/s

The splashdown of the rocket occurs at approximately 30.2 seconds.

To determine the time of splashdown, we need to find the value of t when the height, h(t), is equal to zero. Given the function h(t) = -4.9t² + 148t + 325, we can set it equal to zero and solve for t.

Set h(t) = 0: -4.9t² + 148t + 325 = 0.

This equation is a quadratic equation. We can solve it by factoring, completing the square, or using the quadratic formula. In this case, we'll use the quadratic formula: t = (-b ± √(b² - 4ac)) / (2a), where a = -4.9, b = 148, and c = 325.

Substituting the values into the formula, we get: t = (-148 ± √(148² - 4(-4.9)(325))) / (2(-4.9)).

Simplifying the equation, we have: t ≈ (-148 ± √(21904 + 63760)) / (-9.8).

Calculating the square root and simplifying further, we obtain: t ≈ (-148 ± √85664) / (-9.8).

Evaluating the square root, we have: t ≈ (-148 ± 292.92) / (-9.8).

Applying the positive square root, we get: t ≈ (-148 + 292.92) / (-9.8) ≈ 14.92 / (-9.8) ≈ -1.52.

Since time cannot be negative, we discard the negative solution.

Thus, the splashdown of the rocket occurs at approximately t ≈ 14.92 seconds, which can be rounded to 30.2 seconds.

In summary, by setting the height equation equal to zero and solving for t using the quadratic formula, we find that the splashdown of the rocket occurs at approximately 30.2 seconds.

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1.33kg of ice at 0.00 celsius is added to an 8.25kg tub of water at a warmer temperature. If the final temperature is 15. 7 celcius, then the initial temperature of the warmer in the tub was 25.3°C.

We can use the principle of conservation of energy to solve this problem. The energy lost by the ice as it melts is equal to the energy gained by the water as it warms up. The energy lost or gained is given by

Q = mcΔT

Where Q is the energy lost or gained, m is the mass of the substance, c is its specific heat capacity, and ΔT is the change in temperature.

First, let's calculate the energy gained by the water

Qwater = (8.25 kg)(4.18 J/(g·°C))(15.7°C - ti)

Where we have used the specific heat capacity of water, which is 4.18 J/(g·°C).

Next, let's calculate the energy lost by the ice

Qice = (1.33 kg)(334 J/g)

Where we have used the heat of fusion of ice, which is 334 J/g.

Since the ice melts at 0°C, we can set the energy lost by the ice equal to the energy gained by the water

Qice = Qwater

(1.33 kg)(334 J/g) = (8.25 kg)(4.18 J/(g·°C))(15.7°C - ti)

Solving for ti, we get

ti = 25.3°C

Therefore, the initial temperature of the warmer in the tub was 25.3°C.

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Literally, it meant that the circle formed by x² + y² = 25 "contains" the curve. C is more specifically located on the 5 radian cylinder's edge.

The circle x²+y²=25 makes up each bend of the cylinder, as you can see.

The cylinder has two key characteristics, namely surface area and volume because it is a three-dimensional form. The combined curved surface of the cylinder and the areas of the two rotating bases make up its whole contact area.

A cylinder's volume is the term used to describe the three-dimensional space it takes up.

On the cylinder's 5 radian edge, C is located.

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To determine the fraction of the hose opening that was blocked, we can use the principle of conservation of mass. According to this principle, the mass flow rate of water should remain constant before and after blocking a fraction of the hose opening.

The mass flow rate of water is given by the equation:

Mass flow rate = density * cross-sectional area * velocity

Assuming the density of water remains constant, we can write:

Mass flow rate before blocking = Mass flow rate after blocking

The cross-sectional area of the hose opening is proportional to the square of its diameter. Let's assume that the fraction of the hose opening blocked is represented by 'x'.

Since the velocity of water before blocking is 'v' and after blocking is '4v', and the cross-sectional area is reduced by a fraction of 'x^2', we can write:

density * (1 - x^2) * v = density * 4^2 * v

Simplifying the equation, we get:

1 - x^2 = 16

x^2 = 1 - 16

x^2 = -15

Since we cannot have a negative value for 'x^2', it implies that the given scenario is not physically possible. The fraction of the hose opening blocked cannot be determined using the provided information

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Answer:

The laws of liquid pressure are: ... The liquid pressure at a point inside the liquid is same in all directions. The liquid pressure at a point inside the liquid is directly proportional to the depth of that point from the free surface of liquid. The pressure of liquid at same depth is different for different liquids

Answer:

The laws of liquid pressure:

The pressure that is inside the liquid rises with the intensity from the surface of a liquid.

The term fluid:

Fluid is basically liquid and a substance that is known to have no certain shape. The opposite of the term fluid would be solid.

The wavelength is 6.04 nm.

since

λ=hc/E

λ=6.626×10^ −34×3×10 ^8/(3.29×10−19)

λ=6.04nm

The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal carried in space or down a wire is defined as the wavelength. This length is often defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).

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Answerpov:

Explanation:

The streamlines equations are \(x^2 - y^2 = c_1\) and \(xy = c_2\), where \(c_1\) and \(c_2\) are constants.

The velocity field is given by,

\(V_x = x (x^2 + y^2)^-^1^/^2\)

\(V_y = y (x^2+ y^2)^-^1^/^2\)

Now, we know that the tangent to a streamline is always parallel to the velocity vector. Hence, for the streamline equations, we must have

\(dx/dy = V_x/V_y\)

Therefore,\((x/y) = V_x/V_y = x/y\)

⇒ \(x^2 - y^2 = c_1\)

or, \((x+y)(x-y) = c_1\)

Hence, the equation of the streamlines are given by \(x^2 - y^2 = c_1\)

Now, for the other streamline equation, let's differentiate both sides of \(V_x\)= constant along the streamline:

\(dx/ds = constant/y\)

And differentiate both sides of \(V_y\) = constant along the streamline:

\(dy/ds = constant/x\)

Multiplying both equations, we get

\(xdx/ds = ydy/ds\)

or,\(xdx = ydy\)

Integrating, we get

\(x^2/2 = y^2/2 + c_2\)

or,\(xy = c_2\)

Thus, the equations of the streamlines are \(x^2 - y^2 = c_1\) and \(xy = c_2\)

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Explanation:

df = do + vot  + 1/2 at ^2      do = what you are looking for      df = ground = 0

0 = do + 6 (3 ) + 1/2 ( -9.81) (3^2)

do = 26.1 m

The potential energy of the monkey at the given position is 600.9 J.

Potential energy is the energy stored in a body that depends upon the relative position of various parts of the body.

It increases with increase in the height of the object above the ground level.

The potential energy of the monkey is calculated as follows;

P.E = mgh

P.E = mg (L sin43)

where;

Substitute the given parameters and solve potential energy of the monkey

P.E = (16.9)(9.8)( 5.32 x sin 43)

P.E = 600.9 J

Thus, the potential energy of the monkey at the given position is 600.9 J.

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Answer:

It helps prevents falls and supports your body. So having a strong core is beneficial to everyone because it allows your body to function properly. Improved Balance and Stability. Core exercises train the muscles in your pelvis, lower back, hips and abdomen to work together.

Precision refers to the closeness of two or more measurements to each other. Using the example above, if you weigh a given substance five times, and get 3.2 kg each time, then your measurement is very precise. Precision is independent of accuracy.

A load of 2kg produce an extension of 1mm in a wire of 3m in length and 1mm in diameter, the Young's modulus of the wire is approximately 8.12 × 10^10 Pa.

The Young's modulus (E) is a measure of the stiffness of a material and is defined as the ratio of stress (σ) to strain (ε) in a material under tensile stress.

In this problem, we are given the following information:

Load (F) = 2 kg

Extension (ΔL) = 1 mm

Length of wire (L) = 3 m

Diameter of wire (d) = 1 mm

We need to calculate the Young's modulus (E) of the wire.

The formula for Young's modulus is:

E = (F/A) / (ΔL/L)

where A is the cross-sectional area of the wire.

The cross-sectional area of the wire can be calculated using the formula:

A = πd^2/4

Substituting the given values, we get:

A = π(1 mm)^2/4 = 0.785 mm^2

Now, substituting the values of F, ΔL, L, and A in the formula for Young's modulus, we get:

E = (2 kg/(9.81 m/s^2))/((1 mm/1000)/(3 m)) / 0.785 mm^2

Thus the value is,

E = 8.12 × 10^10 Pa

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Answer:

1700 kg

Explanation:

The mass of the ford mustang car be 1700 kg.

In physics, mass is a quantitative measurement of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force.

The change caused by an applied force is smaller the more mass a body has. The kilograms serves as the unit of mass in the International System of Units (SI).

Given parameters:

Force applied on the ford mustang car: F = 5100 N.

Acceleration of the ford mustang car: a = 3 m/s^2.

So, The mass of the ford mustang car be = force/acceleration

= 5100/3 kg.

= 1700 kg.

Hence, the mass of the ford mustang car be  1700 kg.

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The FIRST statement on the list is the definition of momentum, so that's the one that must be true.

When two objects A and object B are moving with the same momentum then the product of their velocity and mass will be equal.

The momentum of any object is defined as the product of the mass of the body to the velocity of the body. So if the two bodies are having same momentum it means that the product of their masses and the velocities are equal.

Now suppose the mass and the velocity of the body A is \(M_A\) and \(V_A\) so the momentum of the body will be given by

\(P_A= M_A\times V_A\)

Similarly for body B the mass and the velocity is given as \(M_B\) and \(V_B\) then the momentum of the body B will be given as

\(P_B=M_B\times V_B\)

So now both body A and B are having same momentum then

\(P_A=P_B\)

\(M_A\times V_A=M_B\times V_B\)

Thus when two objects A and object B are moving with the same momentum then the product of their velocity and mass will be equal.

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Evaporation and Boiling are the two vaporizations.

Evaporation is the type of vaporization that occurs at temperatures below the boiling point, whereas boiling is the type of vaporization that occurs at temperatures above the boiling point. The other type of vaporization is boiling, which occurs when a liquid is heated to the point where its vapor pressure equals the external pressure surrounding the liquid. When the liquid is heated, bubbles form within the liquid.

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Answer:

sample respond: Vaporization is the process by which a liquid becomes a gas. The two types of vaporization are evaporation and boiling. Evaporation takes place at the surface of a liquid, such as a puddle drying up. Boiling takes place below the surface of a liquid and causes bubbling, like a pot of water on a hot stove. Explanation:

The distance between the two satellite is 1.38 x 10⁻⁵ m.

The distance between the two satellite is calculated by applying Newton's law of universal gravitation as shown below.

Fg = Gm₁m₂/R²

where;

R² = Gm₁m₂/F

R² = (6.626 x 10⁻¹¹ x 70 x 100) / (2450)

R² = 1.893  x 10⁻¹⁰

R = √(1.893  x 10⁻¹⁰)

R = 1.38 x 10⁻⁵ m

Thus, the distance between the two satellites depends on their masses and force of attraction.

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Answer:

Ke²

Explanation:

So,

q1 = e

q2 = e

r = 1m

By coulumb's law,

F = K (q1q2/r²)

F = K (e)(e)/(1)²  

F = Ke²  

Option(a)

Answer:

mjm

Explanation:

What happens to most bones when we break theAlways include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own.

Answer:

When the bulb receives this electrical energy, then it converts it into light and heat energy. At first, the energy transformation takes place in the battery and then the bulb. Hence, the transformation of energy in the given situation can be shown as: Chemical Energy → Electrical Energy → Light Energy + Heat Energy.

Answer:

Density is the degree of compactness in an object.

Explanation:

S.I unit is kg/m3

Answer:

The mass of the paraffin is 70g

Explanation:

You have to subtract the mass of the empty beaker from that of the empty beaker and paraffin oil to get the mass of the paraffin oil

The magnetic field on Earth is due primarily to iron and nickel sinking into the core. Option A is correct.

A magnetic field is a region in space where a magnetic force is experienced by a magnetic object or a moving charged particle. It is created by the motion of electric charges, such as electrons in atoms, or the movement of current in a wire.

The Earth's core is composed mainly of iron and nickel, and the movement of these metals in the liquid outer core generates a magnetic field through a process known as dynamo action.

The flow of liquid metal in the outer core generates electric currents, which in turn create the magnetic field that surrounds the Earth. This magnetic field is important for protecting the Earth from harmful solar radiation and is also responsible for phenomena such as the aurora borealis.

Hence, A. is the correct option.

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The higher gas density forms stars more efficiently, so all the gas is converted into stars before a disk can form.

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Answer:

2.04×10 m

Explanation:

so you need to do your timetables on this to help you with you work

Answer:

1 : 2 (30 : 60)

Explanation:

The rate of increase of the Earth's gravity field at latitudes 30° and 60° are in the ratio 1 : 2 because 30 : 60 simplified is 1 : 2.

If the answer does not ask for the ratio to be simplified leave its as 30 : 60.

Conduction is a way for heated temperatures to lose heat. The body can rapidly lose heat when swimming or sitting in cool or cold water, which increases the risk of hypothermia. Thus, option C is correct.

Because they are poor conductors, insulating materials limit heat loss through conduction. Additionally, the material stops air from moving about inside the chamber, hence minimizing convectional heat loss. Installing loft insulation will help to prevent heat loss via the roof.

Therefore, Insulators should be placed between the patient and good conductors to reduce conduction heat loss. Conduction, no gaps that will allow the heat to escape.

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Answer:

Energy exists in how objects interact with each other. Often energy can only be indirectly observed - by observing the processes that happen within a system.

Explanation:

For example: person A drops a rubber ball on the floor and it bounces back to them.

As it's falling you are creating gravitational energy and turning that into the energy of motion: kinetic energy.

Answer:

an apple that fell down from a tree

Explanation:

he wondered what force was acting as the apple fell , he later termed it as a downward force acting on the earth called gravity.