10. A book has a mass of 400 g. The surface of the book in contact with a table has dimensions 0.10m x 0.20 m. The gravitational field strength g is 10 N/kg. What is the pressure exerted on the table due to the book? A 0.08 N/m? B 8.0 N/m C 20 N/m2 D 200 N/m

Answer:

I think the first one is thomas hobbs and the second one is life liberty and the pursuit of happiness

Explanation:

The position of the particle at t = 10 seconds is approximately 〈1.491, 30〉 meters after all velocity and acceleration calculations.

There is a particle moving in the xy-plane, whose position can be represented as 〈x(t),y(t)〉=〈sin(2t),t^2−t〉 for 0 ≤ t ≤ 8 seconds. We can find its velocity and acceleration vectors using this position vector.

At t = 8 seconds, the particle starts moving in a straight line with the same velocity vector as it had at that time. Therefore, for t ≥ 8 seconds, we can find the position vector of the particle.

To find the position of the particle at t = 10 seconds, we need to substitute t = 10 in the equation of position vector for t ≥ 8 seconds. The position of the particle at t = 10 seconds is approximately 〈1.491, 30〉 meters.

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Answer:

glycolysis is the answer to the question

the force between the two wires if they are separated by 2.50 cm is 0.525 N.

Given that force F between two parallel wires carrying electric currents is inversely proportional to the distance d between the wires and that a force of 0.750 N exists between wires that are 1.75 cm apart and that we are supposed to find the force between them if they are separated by 2.50 cm.

Let the initial force be F₁ and the initial distance be d₁.

Therefore, we can write the relationship between force and distance as;

F₁d₁ = F₂d₂

Where

;F₁ = 0.750 N (initial force)

d₁ = 1.75 cm (initial distance)

F₂ = ? (force at new distance)

d₂ = 2.50 cm (new distance)

Let us find F₂;F₁d₁ = F₂d₂F₂ = F₁d₁/d₂

Now substitute the values we know;

F₂ = (0.750 N x 1.75 cm) / 2.50 cmF₂ = 0.525 N

Therefore, the force between the two wires if they are separated by 2.50 cm is 0.525 N.

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Scientists can obtain information about water levels, temperatures, and ocean salinity from fossils that provide evidence of changes in Earth's climate over time.

By examining the types of organisms found in different layers of rock, scientists can determine what the climate was like during that time period. For example, the presence of coral reefs in rocks that are now located in a desert environment suggests that the area was once covered by water.

Similarly, the presence of fossils of cold-water organisms in rocks that are now located in a warm climate suggests that the temperature has changed over time. Scientists can also use fossils to track the movement of continents and understand the causes of mass extinctions, which can be linked to climate change. Overall, fossils provide valuable insights into the history of Earth's climate and how it has evolved over millions of years.

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If a ship weighs 52,000 tons and is in isostatic equilibrium when 6,000 tons of cargo is added, the total mass of water that will be displaced by the ship after the cargo is added is (M)= 58000 tons.

The weight is term that means that by how much gravitational force earth going to attract that object. It can be shown easily, W=mg. It is a vector quantity. It can be measured in kg.m/s²

To calculate the mass we are using the formula,

M=m₁+m₂

Here we are given,

m₁= The weight of the ship according to the question. =52,000 tons.

m₂= The weight of cargo that is added on the ship. = 6000 tons.

We have to calculate the total mass of water that will be displaced by the ship after the cargo is added is =M tons.

Now we put the values in above equation, we get

M=m₁+m₂

Or, M= 52000+6000

Or, M= 58000 tons.

So we can say that, the total mass of water that will be displaced by the ship after the cargo is added is (M)= 58000 tons.

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Answer:

Explanation:

It increases the speed because of gravitational potential energy. Gravitational potential energy depends on height, mass, and speed which would help increase the speed.

Answer:

It increases speed because gravitational pull

Explanation:

When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity, and velocity, in turn, is a measure of the speed and direction of motion. Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls.

Answer:

1.575 N

Explanation:

Given that,

Charge on a PVC pipe, q₁ = -0.0000007 C

Charge on a positively charged sweater, q₂ = 0.0000009 C

Separation between charges, d = 6 cm = 0.06 m

We need to find the magnitude of the force between charges. The force between two charges is given by :

\(F=\dfrac{kq_1q_2}{r^2}\\\\F=\dfrac{9\times 10^9\times 0.0000007 \times 0.0000009 }{(0.06)^2}\\\\F=1.575\ N\)

So, the electrostatic force has a magnitude of 1.575 N.

Answer: Li, S, F

Explanation:

They are all non-metallic elements

According to the electronic configuration, elements which will most likely form anions sulfur and fluorine .

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:

You are right, the answer in neither

Explanation:

Auto A: 20 miles (in 10 seconds) and 25 miles (in 5 seconds)= 45 miles in 15 seconds

Auto B: 45 miles in 15 seconds

Auto A and B are equal

Hope this helps! :) If correct pls mark brainliest :)

Answer: Force required to 25 joule work when the force causes a displacement of 0.5m is 50N

Explanation: To calculate the work done we use the formula

W=F.s                               (1)

W= work done

F=  force applied               s= displacement

Given, work done W= 25 joules= 25 J

displacement s= 0.5m

∴From equation (1) we get the force required when work is done and displacement is given, that is

F\(=\frac{W}{s}\)                                (2)

∴Force required \(F=\frac{W}{s}= \frac{25J}{0.5m}=50N\)            

(1 J is the work done by a force of 1 N acting over a displacement of 1 m and so 1 J= 1 Nm⇒ 1 N = 1 J/m)

ANS: Force required to do 25 J work when a force causes displacement of 0.5m = 50 N

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The integral of 1/(1 + x²) is (1/2)ln|1 + x²| + C where C is the constant of integration.

Integration is a mathematical process of finding the antiderivative of a function. To integrate the given expression 1/(1 + x²), we will use the substitution method.

Let u = 1 + x², du/dx = 2x dx, then dx = du/2x and the integral becomes:

∫1/(1 + x²) dx = ∫1/u * (1/2x) du= (1/2)∫1/u du

The antiderivative of 1/u is ln|u| + C, where C is the constant of integration.

Therefore, the final solution of the integral is (1/2)ln|1 + x²| + C.

Let us work through the steps:

Step 1:Let u = 1 + x² and then differentiate both sides with respect to x to obtain du/dx. du/dx = 2x

Substitute 2x dx = du into the integral ∫1/(1 + x²) dx to get the integral in terms of u:∫1/u * (1/2x) du = (1/2) ∫1/u du

Step 2:Calculate the antiderivative of 1/u, which is ln|u|. Thus, the final solution is (1/2)ln|1 + x²| + C, where C is the constant of integration. The constant C will vary depending on the initial conditions of the problem.

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Answer:

When the Earth and sun are perfectly lined up, then it will happen. They can tell when it's going to happen.

Explanation:

This is why it only happens in some places. Some days it's not sunny out, so it's not going to happen.

Answer:

60 000 J

Explanation:

The PE will be converted to KE entirely (if the lowest point is ground level)

The term "gain" is another word for amplification.  Amplification refers to the process of increasing the magnitude or power of a signal, and gain is a measure of the amplification achieved.

It represents the ratio of the output amplitude or power to the input amplitude or power. Gain can be expressed in logarithmic form, such as decibels (dB), or as a linear ratio. It is commonly used in various fields, including electronics, telecommunications, audio engineering, and signal processing.

When a signal is amplified, its strength or intensity is increased, allowing it to be more easily detected or transmitted over long distances. Amplification can be achieved through various means, such as using electronic circuits, amplifiers, or amplification devices. The term "gain" is often used interchangeably with amplification, emphasizing the increase in signal strength or power.

In summary, gain is another term for amplification and represents the ratio of output amplitude or power to input amplitude or power. It is commonly used to describe the increased strength or power of a signal achieved through various amplification techniques.

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Answer:

\(velocity = \frac{distance}{time} \\ velocity = \frac{10}{12.20} \\ velocity = \frac{50}{61} \\ multiply \: by \: 3.6u \: can \: convert \: to \: km \: per \: hour \\ velocity = \frac{50}{61} \times 3.6 \\ v = \frac{180}{61} \\ v = 2.95 \frac{km}{h} \\ thank \: you\)

The final answer are n yields 4.76 x 1028 charge carriers per unit volume.

The number of charge carriers per unit volume for a copper wire with a diameter of 2.5 mm and a current of 1.2 x 10-10 A is dependent upon the resistivity of the material.

The resistivity of copper is 1.68 x 10-8 Ωm, which can be used to calculate the charge carriers per unit volume.

The equation to calculate the charge carriers per unit volume is: ρ = (n*e2)/m, where n is the number of charge carriers, e is the elementary charge, and m is the mass.

Plugging in the values, we get: 1.68 x 10-8 = (n*(1.6 x 10-19)^2)/(3.3 x 10-3).

Solving , then final answer for n yields 4.76 x 1028 charge carriers per unit volume.

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Answer:

the answer is C a material or substance

Explanation:

BRAINLIEST PLZZZZZZZZZZZZZZZ

Answer:

The particles of the medium just vibrate in place. Particles of the medium don’t actually travel along with the wave. Only the energy of the wave travels through the medium.

Explanation:

In conclusion, the work done by the chain can be determined by multiplying the force applied by the chain, which is the product of the mass of the block and the acceleration due to gravity, by the distance over which the force is applied. The work done in this case is 588 Joules.

To find the work done by the chain, we can use the equation:
Work = Force x Distance
First, let's find the force applied by the chain. The force can be determined using Newton's second law:
Force = mass x acceleration
Since the block is being brought down by the chain, the acceleration will be due to gravity, which is approximately 9.8 m/s^2.
So, the force applied by the chain can be calculated as:
Force = mass x acceleration
      = 30.0 kg x 9.8 m/s^2
      = 294 N
Next, let's calculate the distance over which the force is applied. The block is dropped down 2.00 m.
Finally, we can calculate the work done by the chain:
Work = Force x Distance
     = 294 N x 2.00 m
     = 588 J
Therefore, the work done by the chain during the process is 588 Joules. This means that the chain applies a force of 294 N over a distance of 2.00 m to bring the block down.
In conclusion, the work done by the chain can be determined by multiplying the force applied by the chain, which is the product of the mass of the block and the acceleration due to gravity, by the distance over which the force is applied. The work done in this case is 588 Joules.

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The magnitude of the force exerted on block x by spring 1 (fx₁ ) greater than, less than, or equal to the magnitude of the force exerted on block y by spring 2 (fy₂)The correct answer is Fx₁ =Fy₂>0.

Without knowing the specific values of the forces or the properties of the springs and blocks, it is not possible to determine whether the magnitude of the force exerted on block x by spring 1 (fx1) is greater than, less than, or equal to the magnitude of the force exerted on block y by spring 2 (fy₂).

The magnitude of the force exerted by a spring depends on its spring constant and the displacement of the block from its equilibrium position, while the force exerted on the block also depends on its mass. Therefore, the relative magnitudes of fx₁ and fy₂ will depend on the specific properties and conditions of the system.

The complete questions is,

Two blocks, X and Y, are at rest on springs, 1 and 2 , as shown. Blocks X and Y are identical; springs 1 and 2 are different. Is the magnitude of the force exerted on block X by spring 1(F X 1 ) greater than, less than, or equal to the magnitude of the force exerted on block Y by spring 2 ( F  Y2 ) ? FY2>FX1>0 FX1>FY2>0 FX1=FY2>0 FX1=FY2=0 FX1>FY2=0 FY2>FX1=0

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The bearing stress in this scenario is 2 kN/mm². To calculate the bearing stress, we need to use the formula:
Bearing Stress = Load / Contact Area

Substituting the given values:
Bearing Stress = 10 kn / 5 square mm
Bearing Stress = 2 N/mm^2

It is important to note that bearing stress is a measure of the force per unit area exerted on the contact surface between two components. In this case, the load is distributed over an area of 5 square mm, resulting in a bearing stress of 2 N/mm^2. It is important to ensure that the bearing stress is within the allowable limits to prevent failure or damage to the components.

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Answer:

250 - 35e = 215e

150 - 35e = 115e

Explanation:

I did it mentally

Answer:

a. 86.80 m

b. i. The mass of the bob

ii. The length of the pendulum

Explanation:

a. Determine the height of the smokestack.

Using T = 2π√(L/g) where T = period of pendulum = 18.7 s, L = length of pendulum = height of smokestack and g = acceleration due to gravity = 9.8 m/s².

So, making L subject of the formula, we have

T = 2π√(L/g)

T/2π = √(L/g)

squaring both sides, we have

(T/2π)² = L/g

L = (T/2π)²g

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

L = (T/2π)²g

L = (18.7 s/2π)²(9.8 m/s²)

L = (2.976 s)²(9.8 m/s²)

L = 8.857 s² × 9.8 m/s²

L = 86.796 m

L ≅ 86.80 m

b. What factors influence the period of a simple pendulum

The factors that influence the period of a simple pendulum are

i. The mass of the bob

ii. The length of the pendulum

Answer:

the capacity to do work is called energy

Answer:

The x represents the reference point on a motion map

Explanation:

-Motion maps are another way to represent the motion of an object. (other representations are graphical and mathematical models)

Answer:

The x represents the reference point on a motion map. Explanation; -Motion maps are another way to represent the motion of an object. (other representations are graphical and mathematical models).

Explanation: