if secondary productivity is determined by the amount of tissue produced by grass and shrubs in a given year, this is an example of top down control detritus food chain mineralization bottom up control

ANSWER:

11925 N

STEP-BY-STEP EXPLANATION:

To calculate the value of the force, we must use the following equation:

In this case, we know that the mass and also the acceleration, we replace and we would have:

Solution:

The coefficient of volume expansion

p = ΔV/V1Δt

3a = V2-V1/V1Δt

Given

a = = 11 x 10-6 / °C

V2 is the final volume

V1 is the initial volume = 100cm³

Δt = 100-0 = 100°C

Substitute

3(11 x 10-6) = V2-100/100(100)

33*10^-6 * 10000 = V2-100

33*10^-2 = V2-100

V2 = 100 + 0.33

V2 = 100.33

Hence the new volume is 100.33cm³

Tectonic processes are fueled by heat from the core, while atmospheric convection is fueled by heat from the sun. That is option A.

The tectonic processes is defined as the process catalysed by heat from the earth core that results to the structuring and properties of the earth crust. This results to the following:

Learn more about tectonic processes here:

https://brainly.com/question/30901514

#SPJ1

The true statement is that the acceleration in the first two seconds is 6 m/s^2.

The term acceleration is defined as the rate of change of velocity with time. The graph as shown is a velocity time graph. The graph shows the changes that occur in the velocity over a given time interval.

Now  we have;

Initial velocity = 0 m/s

Final velocity = 12 m/s

Time taken = 2s

Acceleration = 12 - 0/2

= 6 m/s^2

Thus the true statement is that the acceleration in the first two seconds is 6 m/s^2.

Learn more about acceleration:https://brainly.com/question/12550364

#SPJ1

The velocity in the first and the second case will be 1.8028 and 5.408 m/sec.

The energy of the body by the virtue of its motion is known as the kinetic energy of the body. It is defined as the product of half of mass and square of the velocity.

Given data:

Kinetic energy, KE=26 J

Mass,m=16 kg

The velocity is obtained as;

\(\rm KE= \frac{1}{2}mv^2 \\\\ v=\sqrt{\frac{2KE}{m} } \\\\ v=\sqrt{\frac{2 \times 26}{16} } \\\\v=1.8028 \ m/sec\)

The second stone has mass and nine times the kinetic energy:

\(\rm KE= \frac{1}{2}mv^2 \\\\ v'=\sqrt{\frac{9\times 2KE}{m} } \\\\ v=\sqrt{9 \times \frac{2 \times 26}{16} } \\\\v=5.408 \ m/sec\)

Hence the velocity in the first and the second case will be 1.8028 and 5.408 m/sec.

To learn more about kinetic energy refer to the link;

https://brainly.com/question/12669551

#SPJ1

Answer:

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When the man jumps from a boat, he applies force on the boat due to which boat moves backward. An equal force is exerted by the boat on the man which helps the man to jump out of the boat.

Answer:

Austrailia

Explanation:

As the charge is negative, the force, which has a magnitude of 33.05 N, is directed to the left, against the electric field.

E is a symbol for the magnitude of the electric field at a specific distance from a point charge. At twice the distance from the point charge, what is the electric field's strength? The field's strength is E/2 at twice the distance. The field's strength is still equal to E at a distance that is twice as great.

E = k*q/r²

r1 = 2.00 cm

r2 = 1.00 cm + 3.00 cm = 4.00 cm

r3 = 1.00 cm

Using these distances, we can calculate the electric field due to each charge:

E1 = kq1/r1² = (9.0 x 10⁹ Nm²/C²) * (1.50 x 10⁻⁶ C) / (0.02 m)² = 168.75 N/C (to the right)

E2 = kq2/r2² = (9.0 x 10⁹ Nm²/C²) * (-2.00 x 10^⁻⁶ C) / (0.04 m)² = -112.50 N/C (to the left)

E3 = kq3/r3² = (9.0 x 10⁹ Nm²/C²) * (6.00 x 10⁻⁶ C) / (0.01 m)² = 5.40 x 10⁶ N/C (to the right)

E = E1 + E2 + E3 = 168.75 N/C - 112.50 N/C + 5.40 x 10⁶ N/C = 5.39 x 10⁶ N/C (to the right)

F = q*E

F = (-6.13 x 10 C) * (5.39 x 10⁶ N/C) = -33.05 N

To know more about magnitude visit:-

https://brainly.com/question/29766788

#SPJ1

Yes, the force of the engine does work on the car as it accelerates the car forward. Work is defined as the transfer of energy that occurs when a force is applied over a distance, and in this case, the force of the engine is causing the car to move, so it is doing work.

As the car gains speed, its kinetic energy increases, which means it has more energy of motion. Kinetic energy is defined as one-half of the mass of an object times its velocity squared, so as the car's speed increases, so does its kinetic energy.

The gravitational potential energy of the car will remain constant as long as it stays on a horizontal road, assuming there is no change in elevation. Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, and since the car's position relative to the ground is not changing, its gravitational potential energy will remain constant.

The tractive force of the engine may change depending on the speed of the car and the resistance to motion that the car is encountering. As the car speeds up, the air resistance acting on the car will increase, which will require more force from the engine to maintain the same acceleration. Additionally, if the road surface is rough or there are inclines, the tractive force required to maintain the same speed or acceleration will also increase.

Learn more about force on

https://brainly.com/question/12970081

#SPJ1

Answer:206.3

Explanation:

Answer:2000

Explanation:

Jonathan needs to maintain a separation of 0.543 mm between the plates to get the desired charge, and a dielectric constant of 92.6 to achieve a separation of 5 mm with a dielectric.

(a) Using the equation Q = CV, where Q is the charge, C is the capacitance, and V is the voltage, we can solve for the capacitance: C = Q/V =\((8.15 x 10^-9 C) / (50 V) = 1.63 x 10^-10 F.\)

Then, using the formula for capacitance of parallel plate capacitors: C = ε0A/d, where ε0 is the permittivity of free space, A is the area of the plates, and d is the separation distance, we can solve for the separation distance: d =\(_{3}OA/C = (8.85 x 10^-12 F/m) x (0.01 m^2) / (1.63 x 10^-10 F) = 0.543 mm.\)

(b) To find the dielectric constant, we can use the formula for capacitance of a parallel plate capacitor with a dielectric: C = εrε0A/d, where εr is the relative permittivity or dielectric constant of the material. Solving for εr, we get: εr = Cd / ε0A = \((1.63 x 10^-10 F)\) x (0.005 m) / \((8.85 x 10^-12 F/m)\) x \((0.01 m^2)\) = 92.6.

Therefore, Jonathan should use a dielectric with a relative permittivity of 92.6 to achieve a separation of 5 mm.

learn more about capacitance

brainly.com/question/13578522

#SPJ1

Answer:

productivity

Explanation:

it's the efficiency of production of goods or services

Answer:

Explanation:

The rate at which goods and services can be produced is called

b) productivity.

Machine efficiency is decreases by friction. It produces heat and energy loss.

Because friction opposes the motion of two surfaces when they slide past one another and because friction must always be overcome in real machinery, it reduces efficiency.

Reduced heat between machine parts and increased efficiency are the results of minimizing friction in a machine. Heat is generated between parts that interact with one another as machines operate. If unchecked, such heat can accumulate to a point where it harms machine parts.

There are many moving parts in an internal combustion engine today. These components can rub against one another, causing a great deal of friction that not only reduces the engine's performance but also increases the risk of damage. When molecules come into close contact with one another, friction is produced and drag is induced by the characteristics of the molecules.

To know more about the friction visit:

https://brainly.com/question/14511054

#SPJ9

Answer:

Positive and negative

Explanation:

In order to attract to form the ionic compound, those charges are needed

E.g

Na+ (sodium)

Cl- (chloride)

Which ultimately forms NaCl (sodium chloride) which is a ionic compound

Answer:

Explanation:

Work done is expressed as;

Work done = Force × distance

Given

Force = 1400N

Distance = 0.3m

Workdone = 1400×0.3

Work done = 420joules

Given mass = 70kg

Weight = 700N

To know how high you will ride into the air

420 = 700×d

d = 420/700

d = 0.6m

You ride 0.6m into the air

Answer:

5 .07 s .

Explanation:

The child will move on a circle of radius r

r = 1.5 m

Let the velocity of rotation = v

radial acceleration = v² / r

v² / r = 2.3

v² = 2.3 r = 2.3 x 1.5

= 3.45

v = 1.857 m /s

Time of revolution = 2π r / v

= 2 x 3.14 x 1.5 / 1.857

= 5 .07 s .

The merry-go round will take 5.07 s to complete one complete revolution.

Given data:

The distance of child from the center is, r = 1.5 m.

The magnitude of radial acceleration is, \(a = 2.3 \;\rm m/s^{2}\).

Since, the child is on merry-go round, which is undergoing a rotational motion. And radial acceleration means that it is under the acceleration, whose value is given as,

\(a=\dfrac{v^{2}}{r}\\\\v=\sqrt{a \times r}\)

Here, v is the linear velocity.

Solving as,

\(v=\sqrt{2.3 \times 1.5} \\\\v=1.857 \;\rm m/s\)

Now, we to obtain the time taken by merry-go round to complete one revolution. Then the expression for the time taken to complete one revolution is,

\(T=\dfrac{2 \pi r}{v}\\\\T=\dfrac{2 \pi \times 1.5}{1.857}\\\\T = 5.07 \;\rm s\)

Thus, we can conclude that the merry-go round will take 5.07 s to complete one revolution.

Learn more about the centripetal acceleration here:

https://brainly.com/question/14465119

The statement that says "Psychological disorders can be very difficult to diagnose" is true about diagnosing psychological disorders.

Psychological disorders are those mental, behavioral, emotional and thinking conditions that interfere with the normal performance of the individual in society.

Therefore, we can conclude that a psychological disorder is an alteration in the mental balance of a person that requires specialized attention adapted to the characteristics of the dysfunction.

Learn more about psychological disorders here: https://brainly.com/question/6367767

The kinetic energy of the merry-go-round after about 3.59 seconds will be 847.72 J.

Kinetic energy is the energy an object because of its motion. If we want to accelerate an object, then we must apply force of some magnitude. Applying a force which requires us to do work. After work has been done on that object, energy has been transferred to the object, and the object will be moving with a new constant speed. Kinetic energy is a vector quantity due to the presence of both magnitude and direction.

Fg = 645 N, F = 61.8 N, r = 1.7m and t = 3.59 sec

Now, Mass of disc, m= Fg/g =645/ 9.8 = 65.81kg

Moment of Inertia is given by,

I = 1/2 mr²

I = 1/2 (65.81) (1.7)²

I = 1/2 (65.81) (2.89)

I = 1/2 (190.19)

I = 95.09 kg m²

Now, T= Fh r = 65.81 × 1.7 = 111.87Nm

Therefore, α = τ/ I = 111.87/ 95.09 = 1.1764 rad/ sec²

Angular velocity, ω = αt = 1.1764 × 3.59

ω = 4.223 rad/sec

Therefore, Kinetic Energy = 1/2Iω²

KE = 1/2 (95.09)(4.223)²

KE = 1/2 (95.09) (17.83)

KE = 1/2(1695.45)

KE = 847.72 J

Learn more about Kinetic energy here:

https://brainly.com/question/26472013

#SPJ1

The motion of the rigid system will be (a) linear (b) rotational (c) both linear and rotational

The first condition for equilibrium states that the body must have a net force of zero. This means that when the net force acting on a body is not zero the body will continue to move in a straight path and the motion of the rigid body will be linear.

The second condition for equilibrium states that the body must have zero net torque acting on the body for achieving equilibrium. torque is the rotational equivalent of force. Therefore, when the net torque is not zero, the rigid body keeps rotating which leads to a rotational motion.

When both the conditions of equilibrium are not satisfied the rigid body does not achieve the static equilibrium.

Learn more about static equilibrium:

brainly.com/question/12582625

#SPJ4

Answer:

It's Dynamic Equilibirum

Explanation

When displaying sections of data, bar charts is used. As long as the number of categories to compare, vertical bar charts can be useful for comparing several category discrete data, like ages, classes, schools.

Charts and graphs are useful visual aids because they make information accessible and quick to understand. So, it is not unexpected that both print and digital media frequently use graphs. When data is displayed as a graph rather than a table, it can often be easier to understand because the graph might show a pattern or comparison.

Visual representations of data, such as tables and graphs, are used to arrange information and reveal patterns and correlations. To present the results of their research, scientists and researchers frequently employ tables and graphs.

To know more about vertical visit:

https://brainly.com/question/11679227

#SPJ1

Answer:

resultant displacement is 5.8km

Answer:

Below

Explanation:

In a mass-spring system that is oscillating horizontally, the energy changes between potential energy and kinetic energy. When the mass is at its maximum displacement from the equilibrium position, it has maximum potential energy and zero kinetic energy. As the mass starts to move towards the equilibrium position, its potential energy decreases while its kinetic energy increases. At the equilibrium position, the mass has zero potential energy and maximum kinetic energy. As the mass moves away from the equilibrium position, its kinetic energy decreases while its potential energy increases. This cycle repeats as long as the system is oscillating.

Now, if the support of the system is vibrating vertically, the energy changes that occur during horizontal oscillations cause the mass to move vertically as well. As the mass moves to its maximum displacement from the equilibrium position horizontally, it also moves upwards, gaining potential energy due to its increased height from the ground. As the mass moves towards the equilibrium position horizontally, it also moves downwards, losing potential energy and gaining kinetic energy due to its increased speed towards the ground. At the equilibrium position, the mass has zero potential energy but maximum kinetic energy, which is all in the vertical direction. As the mass moves away from the equilibrium position horizontally, it also moves upwards, gaining potential energy again. The cycle repeats, causing the mass to oscillate vertically as well.

Therefore, the energy changes that occur during horizontal oscillations in a mass-spring system can cause the system to vibrate vertically if the support is vibrating vertically.

Answer:

Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This tendency to resist changes in a state of motion is inertia.

Explanation:

Answer:

I think A is correct.

Explanation:

If it's not I'm sorry probably my fault but I hope this helps:)

Answer:

-12.1

Explanation:

i’m almost sure this is it, i’m checking my old answers

if not let me know and i’ll give you some more answers

Answer:

v = 17.5 m/s = 63 km/h

Explanation:

       \(K = \frac{1}{2}*m *v^{2} (1)\)

       where m = mass of the object, v= speed of the object.

       \(21 km/hr * \frac{1 hr}{3600s}*\frac{1000m}{1 km} = 5.83 m/seg (2)\)

       \(K = \frac{1}{2}*18000 kg *(5.83m/s)^{2} = 306250 J (3)\)

       \(K = 306250 J = \frac{1}{2}*2000 kg *v^{2} (4)\)

       \(v = \sqrt{\frac{306250}{1000} (m/s)2} = 17. 5 m/s = 63 km/h (5)\)

Based on the grid shown, the x component of the vector A is 3.

The given grid is a 10 by 10 grid, this means that every box in the grid has a length of 1 unit on all sides.

Thus, the x and y components of the vectors can be determined.

The x and y components of vector A is 3 and 3 respectively.

Therefore, based on the grid shown, the x component of the vector A is 3.

Learn more about x-component of vectors at: https://brainly.com/question/8043832