to examine a particular blood sample in biology lab, a student uses a compound microscope set to have a magnification of -4515. the objective and eyepiece are both attached to a tube which is 16 cm in length and the eyepiece has a focal length of 2.6 cm. the near point of the person using the microscope is 25.5 and you can assume she can view the image produced with a fully relaxed eye. 1)what is the focal length of the objective? f

According to the statement, as the weight of the brick pushes down on the inclined plane, the inclined plane pushes up against the brick. This upward force is called the normal force.

Thus, the normal force in the scenario described above is the force applied by the inclined plane on the brick in a direction perpendicular to the surface of contact between the two entities.

A force is known as the Normal Force when the force is perpendicular to the surface. The normal force is often symbolized by N and expressed in newtons. A surface that is perpendicular to a force is the one where the normal force acts. The normal force is the force applied perpendicular to a surface to prevent an object from sinking into it or passing through it.

To know more about normal force visit:

https://brainly.in/question/434819

#SPJ11

Answer:

1.1 m/s²

Explanation:

From the question,

F -mgμ = ma.................... Equation 1

Where F = applied force, m = mass of the apple cart, g = acceleration due to gravity, μ =  coefficient of friction., a = acceleration of the apple cart.

Given: F = 115 N, m = 25 kg,  μ  = 0.35

Constant: g = 10 m/s²

Substitute these values into equation 2

115-(25×10×0.35) = 25×a

115-87.5 = 25a

25a = 27.5

a = 27.5/25

a = 1.1 m/s²

For a radius of diatomic molecules is approximately 2.3 ×10-10 m, the  pressure in Pa is mathematically given as

P=0.134Pa

Generally, the equation for the ideal gas  is mathematically given as

PV=nRT

Therefore

\(P=\frac{1kT}{\sqrt{2}\pi(p)d^2}\)

\(P=\frac{1.38*10^-23*293}{\sqrt{2}\pi*(2*1.3*10^{-10})^2)*0.1}\)

P=0.134Pa

In conclusion, Pressure

P=0.134Pa

Read more about Pressure

https://brainly.com/question/25688500

Answer:

He needs to enroll himself in CMMA. This company help young students obtain a well future in Construction Science.

The slope of a position-versus-time graph represents the velocity.

The direction of a body or object's movement is defined by its velocity. In its basic form, speed is a scalar quantity. In essence, velocity is a vector quantity. It is the speed at which distance changes. It is the displacement change rate.

Velocity can be defined as the rate at which something moves in a specific direction. as the speed of a car driving north on a highway or the pace at which a rocket takes off.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path.

Learn more about Velocity here

https://brainly.com/question/25749514

#SPJ4

The expected ratio of free-hanging earlobes to attached earlobes in the offspring is 1:2.

The diagram depicts a Punnett square used to predict the earlobe shape of two parents' offspring. The capital A represents free-hanging earlobes, while the lowercase a represents attached earlobes.

The Punnett square is a square diagram used to predict genotypes of a specific cross or breeding experiment. It is named after Reginald C. Punnett, who invented it in 1905. Biologists use the diagram to calculate the likelihood of an offspring having a specific genotype.

In this case, the genotype rato based on the attached diagram is 1:2.

Learn more about offspring on:

https://brainly.com/question/471576

#SPJ1

Empirical research suggests that cognitive behavioral therapy for depression is effective.

It has been well-documented through empirical research that cognitive behavioral therapy (CBT) is effective for treating depression. CBT is a form of psychotherapy that aims to change negative thought patterns and behaviors in order to improve mood and overall well-being.

Research has shown that CBT can be as effective as antidepressant medication for treating mild to moderate depression and may be more effective in preventing relapse. CBT can also be tailored to meet the individual needs and preferences of the client, making it a flexible and versatile treatment option.

To know more about empirical research, here

https://brainly.com/question/26377367

#SPJ4

Object B has density rho₂ such that  rho₂ = 3 rho₁. From the given options, the third option is the correct one for the density.

The density of a particular thing or object is specified as its mass per unit volume. Let's assume that object A has a mass of m and a volume of V. Therefore, its density rho₁ is given by:

rho₁ = m/V

Now, object B has the same form and proportions as physical object A, but it is three times as big as the object A. This means that the mass of object B is 3m. Since the two objects have the same shape and dimensions, they have the same volume V. Therefore, the density rho₂ of object B is given by:

rho₂ = (3m)/V

Substituting m/V from the equation for rho₁, we get:

rho₂ = 3 rho₁

Therefore, the correct answer is rho₂= 3 rho₁.

Learn more about density here:

https://brainly.com/question/28464887

#SPJ1

Answer:

30 mph

Explanation:

1800 divided by 60

When an object travels at a constant speed with zero acceleration it is known as uniform rectilinear motion. Then its velocity is given by:

v = d / t

Where d is distance and t is time. Evaluating:

v = 1800 m / 60 s

Answer:

Electromagnetic cranes are used to separate copper from iron in a scrap yard. The current is switched on to energies the electromagnet and pick up the iron pieces from the scrap. Then these iron pieces are moved to another position, the electromagnet in switched off and the iron pieces are released.

Explanation:

The quantity with the symbol w is called the angular velocity, while the circular velocity and centripetal acceleration are two other quantities that are related to objects moving in a circular path.

The quantity with the symbol w is called the angular velocity. The angular velocity is a quantity that defines the speed of rotation of an object about an axis or a point. This is also represented by the symbol “ω” and the unit of measurement is radians per second (rad/s).

The circular velocity is a measure of the velocity of an object moving in a circular path. It is the tangential speed of an object moving in a circle, and it can be calculated by multiplying the radius of the circle by the angular velocity of the object. It is represented by the symbol “v” and the unit of measurement is meters per second (m/s).

The centripetal acceleration is the acceleration of an object moving in a circular path. It is the acceleration that points towards the center of the circle and it is equal to the product of the square of the velocity of the object and the radius of the circle. It is represented by the symbol “a” and the unit of measurement is meters per second squared (m/s²).

To know more about velocity visit:

https://brainly.com/question/30559316

#SPJ11

A) The angular velocity of the bicycle wheel at t=2.5s is 1.2 rad/s. B) The wheel has turned through an angle of 2.63 radians.

Using the formula ωf = ωi + αt, where ωf is the final angular velocity, ωi is the initial angular velocity, α is the angular acceleration, and t is the time, we can calculate the angular velocity at t=2.5s. Plugging in the given values, we get ωf = 0.700 rad/s + (0.200 rad/s2)(2.50 s) = 1.2 rad/s.

Using the formula θ = ωi t + 1/2 αt^2, where θ is the angular displacement, we can calculate the angle turned by the wheel between t=0 and t=2.5s. Plugging in the given values, we get θ = (0.700 rad/s)(2.50 s) + 1/2 (0.200 rad/s2)(2.50 s)^2 = 2.63 radians. Therefore, the wheel has turned through an angle of 2.63 radians.

Learn more about angular velocity here:

https://brainly.com/question/31495959

#SPJ11

In a diatomic molecule, the potential energy between two atoms is determined by the force between them, and it is given by the equation u (x) = x 1 2 a x 6 b

The definition of gravitational potential energy

The energy that an item has when it defies gravity to rise to a given height is known as its gravitational potential energy. Here is an example of how gravitational energy is defined. Think about a thing with mass = m. placed as depicted in the picture, at a height of h from the floor

How much potential energy does being in an elevated position have?

Water in a raised reservoir or maintained behind a dam serves as proof for gravitational potential energy, which is caused by elevated situations. The gravitational field's force will exert positive work on an object if it descends through one point to the other inside it.

To know more about potential energy visit:

https://brainly.com/question/24284560

#SPJ4

The spring constant of this spring is 100 Nm⁻¹.

The spring regular is the pressure needed to stretch or compress a spring, divided by means of the distance that the spring gets longer or shorter. it is used to determine balance or instability in spring, and consequently the device it's supposed for.

Spring regular is a degree of the stiffness of spring up to its limit of proportionality or elastic restriction. The restriction of proportionality refers to the factor beyond which Hooke's law is now not actual whilst stretching a cloth.

The Spring constant is a function of a spring that measures the ratio of the force affecting the spring to the displacement resulting from it. In other words, it describes how stiff a spring is and what sort of it's going to stretch or compress.

calculation:-

f = -kx

100 = -k 1m

k = 100 Nm⁻¹

Learn more about spring constants here:-https://brainly.com/question/23885190

#SPJ4

The satellite travels approximately 1,798.07 km in 1 hour. The circumference of the satellite's orbit is 8,600π km, and the satellite orbits Mars every 15 hours.

To find out how far the satellite travels in 1 hour, we need to determine its orbital circumference.

The circumference of a circular orbit can be calculated using the formula:

C = 2πr

where C is the circumference and r is the radius of the orbit.

In this case, the satellite is orbiting Mars, which has a radius of approximately 3,300 km. The satellite is 1,000 km above the surface of Mars. Therefore, the radius of the satellite's orbit is the sum of the radius of Mars and the distance above the surface:

r = 3,300 km + 1,000 km = 4,300 km

Now we can calculate the circumference:

C = 2π(4,300 km) = 8,600π km

Since the satellite orbits Mars every 15 hours, the distance traveled in 1 hour is 1/15th of the circumference:

\(\begin{equation}\text{Distance traveled in 1 hour} = \frac{1}{15} \cdot 8600\pi \text{ km}\)

Calculating this value gives us:

Distance traveled in 1 hour ≈ 1,798.07 km

Therefore, the satellite travels approximately 1,798.07 km in 1 hour.

To know more about the circumference refer here :

https://brainly.com/question/17191505#

#SPJ11

Gravity is a fundamental, universal force that pulls objects toward Earth's center. It increases with mass and decreases with distance. Measured in Newtons, it affects all objects.

For more questions on Gravity

https://brainly.com/question/30337821

#SPJ8

The correct question would be as

Which statement describes gravity? Select three options. There is no defined unit of measurement for gravity.

Gravity is the force that pulls objects toward Earth’s center.

Objects that have a small mass will have no gravitational pull.

Gravitational pull between two objects increases as the mass of one increases.

Gravitational pull decreases when the distance between two objects increases

Answer:

23.67 km / hr

Explanation:

car travels 355 km (d)

duration = 15 hrs  (t)

average speed formula = v = d / t

v = 355 km / 15 hr

v = 23.67 km / hr

Explanation:

Hello, there!!!

Here, your question is asking about the speed and the given are:

distance (s)= 355km

time (t) = 15hrs.

speed (v)=?

now,

we have the formula:

v= s/t

or, v = 335km /15 hrs.

Therefore, the speed of car was 23.67km/hr.

Hope it helps..

Answer:

15,000

Explanation:

The answer is True. Magnetism-detecting bacteria have the ability to align with magnetic fields, which is known as magnetotaxis. This is accomplished through the presence of magnetosomes, which are specialized organelles that contain magnetic particles.

These magnetic particles allow the bacteria to sense the Earth's magnetic field and use it for orientation and navigation. When an external magnetic field is applied, the magnetosomes within the bacteria will align with the field, causing the bacteria to turn and move in the direction of the field. This property has been studied and utilized in various fields such as biotechnology and medicine for targeted delivery of drugs and therapies. In summary, magnetism-detecting bacteria can turn with an applied magnetic field due to their ability to align with magnetic fields.

To know more about Magnetism-detecting visit :-

https://brainly.com/question/16047594

#SPJ11

\(\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}\)

Which of the following is not an example of an abiotic component of an ecosystem :

A . water

B . minerals

C . sunlight

D . bacteria ✓

E . air

Bacteria is a single celled living organism.

\( \#TeeNForeveR\)

D. bacteria is not an example of an abiotic component of an ecosystem.

An ecosystem is a community of living organisms (biotic) interacting with each other and with their non-living (abiotic) environment in a specific area. It encompasses all the living and non-living components of a particular environment and the complex interactions among them.

Here,
Abiotic components are the non-living factors that influence the distribution and abundance of living organisms in an ecosystem. Examples of abiotic components include water, minerals, sunlight, air, and temperature. Bacteria, on the other hand, are living organisms and are considered as biotic components of an ecosystem.

Thus, D. bacteria is not an example of an abiotic component of an ecosystem.

Learn more about the ecosystem here:

https://brainly.com/question/13979184

#SPJ6

.Answer: All options are correct.

What is sports medicine specialist?

--Sports medicine is a branch of medicine that deals with physical fitness and the treatment and prevention of injuries related to sports and exercise.

Lets understand every points--

1. During playing any sports if a person get any type of injury , at that situation it need instant relief to continue the game. So first option is correct i.e it performs emergency medical care.

2. Many times during heavy injury sportsman require surgery to get again health life.And surgery needs time., so that's why second option is also correcti e performs long term medical care

3.Without diagnosis surgery is not possible i.e. thirds option is also correct.

4. Also sports medicine specialist provide training and such types of exercise so that body as soon as possible i .e forth option is also correct.

from above discussion we see all points.

Learn more about medicine  from https://brainly.com/question/1744272.

#SPJ1

The power absorbed by a 60 resistor placed across the terminals would be 166.67 mW.

The power absorbed by a 60 ohm resistor placed across the terminals of a circuit containing ideal sources and resistors can be calculated using the formula Power = (Open Circuit Voltage)2 / Resistance. In this case, the open circuit voltage is 10V and the resistance is 60 ohms. Therefore, the power absorbed by the resistor is 102 / 60 = 166.67 mW.

To calculate the open circuit voltage, you first need to find the total current in the circuit. The total current is equal to the current through the short circuit, 400A. Then, using Ohm's law (V = I x R), you can calculate the open circuit voltage by multiplying the total current by the total resistance of the circuit.

To know more about power, refer here:

https://brainly.com/question/14632673#

SPJ11#

Answer:

15.24 m/s in the downward direction

Explanation:

Given that the initial upward velocity of the ball is 24 m/s.

Assuming that the upward direction is positive.

As gravitational force acts in the downward direction and the direction of acceleration is the same as the direction of force, so the acceleration due to gravity will be negative.

Now, from the equation of motion, when an object is launched with initial velocity u, the final velocity, v, of an object after time t is v=u+at.

Given that u=24 m/s, t=4 seconds, \(g=-9.81 m/s^2\).

So, the final velocity is

\(v= 24 + (-9.81)\times 4 \\\\\Rightarrow v= 24-9.81\times 4\)

\(\Rightarrow v=-15.24\) m/s

Here, the negative sign means the final velocity is in the downward direction.

Hence, the velocity after 4 seconds is 15.24 m/s in the downward direction.

Answer:

7.2375m/s^2

Explanation:

initial velocity=-25 km/h=-6.94m/s

final velocity=35 km/h=9.72m.s

distance=3.2m

v^2=u^2+2as

9.72^2=-6.94^2+2a*3.2

94.48=48.16+6.4a

(94.48-48.16)/6.4=a

7.2375m/s^2

The sequence a_n = cos(5/n) converges, and the limit is 1.

To determine whether the sequence converges or diverges, and find the limit if it converges, we will consider the sequence a_n = cos(5/n).

1. Recognize that we are dealing with a limit of a sequence as n approaches infinity: lim (n→∞) cos(5/n).

2. Recall that the cosine function is continuous and well-defined for all real numbers.

3. Apply the limit laws to the given expression: lim (n→∞) cos(5/n) = cos(lim (n→∞) 5/n).

4. Evaluate the limit inside the cosine function: lim (n→∞) 5/n = 0, since the numerator is constant and the denominator approaches infinity.

5. Substitute the limit back into the cosine function: cos(0).

6. Evaluate the cosine function at 0: cos(0) = 1.

So, the sequence a_n = cos(5/n) converges, and the limit is 1.

Learn more about The sequence: brainly.com/question/7882626

#SPJ11

The Impulse delivered to the ball is 138.75 Ns or 138.75 kgm/s.

Impulse: This is the product of force and time.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, The Impulse delivered to the ball is 138.75 Ns or 138.75 kgm/s

Learn more about impulse here: https://brainly.com/question/22296861

Answer:

A solar eclipse results when the moon passes in between the earth and the sun hiding the sun fully or partly for some time. A lunar eclipse occurs when the earth passes in between the moon and the sun casting its shadow on the moon and thus hiding it fully or partly for some time.

Explanation:

your welcome

The magnitude of the radial component of acceleration is 1.25 m/s^2.

To solve this problem, we can use the formula for radial acceleration:

a_r = r * (Δω / Δt)

where a_r is the radial acceleration, r is the distance from the axis of rotation, Δω is the change in angular velocity, and Δt is the time interval over which the change occurs.

Plugging in the given values, we get:

a_r = 0.75 m * ((10 rad/s - 15 rad/s) / 3 s)

a_r = 0.75 m * (-1.67 rad/s^2)

a_r = -1.25 m/s^2

Note that the negative sign indicates that the acceleration is directed inward, towards the axis of rotation. So the magnitude of the radial component of acceleration is:

|a_r| = 1.25 m/s^2

To know more about acceleration, here

brainly.com/question/29557596

#SPJ4

--The complete question is, What is the magnitude of the radial component of acceleration of a point located at a distance of 0.75 meters from the axis of rotation of a centrifuge, just as it begins its deceleration from an angular velocity of 15 rad/s to 10 rad/s over a time period of 3 seconds?--