According to Pascal, pressure applied to a fluid __.

Answer:

Rigan stood on a plastic chair to provide insulation between Rigan and the environment.

If Rigan was connected electrically to the environment, then no net charge would be accumulated by Rigan and no effect would be noted.

To find the component of car's average velocity along X-axis, the angle between the the direction of the velocity and the X-axis must be known.

The value of x component of the car's average velocity is Vcosx.

Let the angle be = x

The X-component of the car's average velocity = Vcosx.

V is the magnitude of the velocity.

To calculate the y component of the car's average velocity

The Y-component of the velocity = Vsinx

The difference between the change in position or displacement (x) and the time periods (t) during which the displacement happens is known as average velocity. Depending on the direction of the displacement, the average velocity could be either positive or negative. Meters per second (m/s or ms-1) is the SI unit of measure for average velocity.

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Density calculations are 1.2L = 1200mL m = 2.9 x 10^4 g

Density is the mass of a material substance per unit volume. d = M/V, where d is density, M is mass, and V is volume, is the formula for density. Grams per cubic centimetre are a typical unit of measurement for density. Another way to state density is in kilogrammes per cubic metre (in metre-kilogram-second or SI units).

For instance, air weighs 1.2 pounds per cubic metre. In textbooks and manuals, the densities of typical solids, liquids, and gases are stated. The relationship between mass and volume can be easily determined using density; for example, the mass of a body is equal to its volume multiplied by the density (M = Vd), whereas the volume is equal to the mass divided by the density (V = M/d).

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The acceleration of the given is a = 7.368 × 10³ m/s².

To calculate the equation we use acceleration formula,

So,

a = Δv/Δt

where,

a is acceleration

Δv is velocity

Δt is time

Now putting the values,

We get,

a = 4.2 × 10³ m/s / 0.57 s

a = 7.368 × 10³ m/s²

The particle's acceleration is represented by the gradient of the line of the speed-time graph (for straight lines acceleration is constant). Line gradient = change in velocity, time = v ut = a. Line gradient is equal to the change in velocity over time, or v u t, or a. The distance traveled by a particle is indicated by the area under the speed-time graph.

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The correct answer is 2.9 m/s.

Average speed combines two concepts into a single word: speed, which is a change in position, and average, which refers to a mean determined from many different data points.

By dividing the distance an object travels in one unit by the amount of time it takes to travel that distance, one may determine the speed of the object. The speed of the item on this voyage, denoted by the letter "s," is equal to s = D/T if "D" is the distance traveled in some time "T."

Given,

time = 6.2 seconds

distance = 60 feet

speed = distance/time

speed = 60/6.2

speed = 9.67 feet/s

speed = 2.9 m/s

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Centripetal force is used for making an object move in a circular path.

Centripetal force is the force on a rotating or orbiting body in the direction of the centre of rotation.

In other words, centripetal force is the force that makes an object move in a circular pattern.

Centripetal force is denoted by "F" and can be calculated by dividing the product of the mass and velocity squared by radius as follows:

F = mv²/r

Where;

Therefore, it can be said that Centripetal force is used for making an object move in a circular path.

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According to research, development is always towards complexity.

The term research has to do with the process that we have to go through to obtain new knowledge or to confirm a piece of information. Let us say that we have some disconnected pieces of evidence that tend to point towards a particular fact, we would need to use the process of research to establish the truth in the research.

Now we can see that there is a movement towards the complexity of organisms at each particular level in the developmental process. We can then conclude that according to research, development is always towards complexity.

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If a bird begins flying straight from the runner to the finish line at v= 17.5 km/hr, the bird would reach the finish line in 10 minutes and 37.71 seconds.

The total displacement covered by any object per unit of time is known as velocity. It depends on the magnitude as well as the direction of the moving object.

As given in the problem A runner is jogging in a straight line at a steady v, 3.5 km/hr. When the runner is L= 3.1 km from the finish line, a bird begins flying straight from the runner to the finish line at v= 17.5 km/hr (5 times as fast as the runner).

The time is taken by the bird to reach the finish line = 3.1 km /17.5 km/hour

                                                                                     =0.177 hours

                                                                                     = 10 minutes 37.71 seconds

Thus, the bird would reach the finish line in 10 minutes and 37.71 seconds.

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Answer:

Both of these involve water changing states.

Explanation:

Clouds forming rain is water changing from a gas to a liquid and evaporation is water changing from a liquid to a gas.

It is true that between any two massive bodies. But, the masses of building and a person are very very small as compare to planets and stars. Hence, the gravitational pull is very weak, comparatively negligible.

Answer:

Yes they are negligible

Explanation:

Why- The gravitational force between 2 massas is independent of their sizes or distribution of mass of the bodies. The gravitational force between 2 bodies does not depend upon the presence or the absence of other bodies. If the masses of the body are small, the gravitational force between them is negligible.

Graph B represents the velocity of the sphere changes over time when falling with constant acceleration.

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A car traveling 500km in 4 hours and another car traveling 500km in 5 hours, both the cars have the same displacement. Thus, the correct option is D.

The displacement is a vector quantity because is has both the magnitude and direction. Displacement is the quantity whose length is the shortest distance from the initial position to the final position of a point which is undergoing motion. Displacement quantifies both the distance and direction of the net or the total motion of an object along the direction of a straight line from the initial position to the final position of the point trajectory of the object. A displacement may be identified with the translation which maps the initial position to the final position of an object.

A displacement may be also described as a relative position, that is, as the final position of an object relative to its initial position. The corresponding displacement vector can be defined as the difference between these two that is the final position and initial position of the object.

Therefore, the correct option is D.

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The force that accelerates a 0.010 kg bullet from rest to a speed of 1100 m/s in a distance of 1 meter is 11 newton.

Force is the entity that changes the motion of an object. It is calculated by multiplying the mass by acceleration.

Mass is the weight of an object per unit. Acceleration is a change in the rate of velocity.

F = ma

The mass is 0.010 kga change

convert into grams = 10 grams

The acceleration is  1100 m/s

putting the value in the formula

1100 x 10 = 11, 000

convert into kg = 11

Thus, the size force accelerates is 11 N.

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If an object's velocity versus time graph is a horizontal line the object is travelling at constant velocity which means the object is not accelerating at all.

The z component of the angular momentum around the origin is 9 kg-m²/s.

Angular momentum is the property of any rotating object given by moment of inertia times angular velocity.

The z component of the angular momentum around the origin is is calculated as follows;

L = mvr

where;

v = ωr

where;

v = 12 rad/s x 0.5 m

v = 6 m/s

Substitute the given parameters' and solve for the z component of the angular momentum around the origin is;

L = (2 kg) x (6 m/s) x (0.75 m)

L = 9 kg-m²/s

Thus, the z component of the angular momentum around the origin is 9 kg-m²/s.

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Answer: 6.0

Explanation:

v = 0.5 * 12 = 6

l = m * r *v

l = 2 * 0.5 * 6

l= 6

Answer:

Given , mass = 12.0kg

height = 13m

acceleration due to gravity = 10m/s

1.ans

Potential energy = mass×acceleration due to gravity×height

Potential energy = 12kg×10m/s×13m

Potential energy = 1,560J

2.ans

Remember this when a body is above the ground potential energy is equal to kinetic energy.

Potential energy = kinetic energy

kinetic energy = ½× mass×(velocity)²

1560J = ½×12kg×v²

1560J = 6kg× v²

1560kgms-2 - 6kg = v²

v² = 1,554m/s²

K.E = ½×m×v²

K.E =( ½)(12kg)(1,554m/s²)

K.E = 9,324J

Answer:

Microorganisms are used in various industries for the production of various metabolites such as ethanol, riboflavin, lactic acid, and butanol. There are a number of microorganisms that are responsible for food spoilage, diseases and infections. Such microorganisms are known as harmful microorganisms

Explanation:

Answer:

D=157g/12cm cubed

Explanation:

D=M/V

D=)21.4)g(/2.40)cm cubed

D=157g/12cm cubed

Answer:

Explanation:

[tex]tan^{-1} (4/3) = 53.3[/tex]

The dependent and the independent variable in this experiment is mood and time, respectively.

The Independent variables are that variables whose value does not depend on any other variable. And it causes the change in other variables.

The dependent variable is those variables whose value is not independent and change in this variable is dependent on the change of the independent variable.

Given that You are conducting an experiment to find out whether the time a person wakes up affects his or her mood. Therefore, we want to know whether the mood of a person is dependent on the time he or she wakes up or not.

Now, since mood is dependent on time, therefore, mood is the dependent variable in the experiment and time is the independent variable in the experiment.

Hence, the dependent and the independent variable in this experiment is mood and time, respectively.

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The acceleration is 4.24 m/s² and the force of friction is 17.64.

To calculate normal force,

use formula,

F = ma

where,

F is normal force

m is mass

a is acceleration due to gravity

Given,

m = 4.5kg

a = 9.8 m/s²

F = 4.5 kg x 9.8 m/s²

F = 44.1 N

Now, as we calculate the normal force

To calculate the force of friction

Using the formula,

μ = N / F

where,

μ is coefficient of friction

N is force due to friction

F is normal force

Given,

μ = 0.40

F = 44.1 N

So, putting values,

We have,

0.40 = N / 44.1

N = 0.40 x 44.1

N = 17.64

Net force = F - Fₙ

So,

Net force =  44.1 N - 25 N

Net force = 19.1

Now we know the net force so to calculate acceleration

Using formula,

F = ma

a = F / m

a = 19.1 / 4.5

a = 4.24 m/s²

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Answer:90

Explanation: bc i looked it up

Although the bigger football player will move, his speed will be substantially slower than the smaller players due to his greater mass.

According to the law of conservation of momentum, The overall momentum of two or more bodies acting on one another in an isolated system stays constant unless an external force is introduced. As a result, momentum cannot be gained or lost.

When a collision occurs, the point of impact is generated by two equal and opposing forces. The heavier mass will be forced to accelerate by the force applied to it, whereas the smaller mass will be forced to slow down by the force applied to it.

Because of their greater mass, larger masses will accelerate more slowly, reducing their velocity.

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The front of a car which does not absorb substantial force is referred to as engine and is denoted as option D.

This is referred to as an external agent which could be in the form of push or pull and is capable of influencing the motion of an object or a body. The formula of force can be seen below:

F = ma where m is mass and a is acceleration

The engine of a car is contained in a compartment in the bonnet and has less substantial force acting on it while the remaining options are exposed to various types of forces.

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If you throw the picket fence down instead of dropping it, the graphs and values ​​will change due to forces other than gravity acting on it. When you throw it, gravity works against it, so they change too, and eventually return tends to decrease. acceleration due to gravity by quadratic curve fitting for the given data is 9.726 m/s2.

The purpose of this exercise was to measure the acceleration of a free-falling object using the slope of a velocity versus time plot. If you drop the picket fence from the same height each time, the photogate will read a slope of 9.8 each time.

The photogate has a beam of infrared light that moves left and right. You can detect whenever that beam is blocked. They drop clear plastic strips with evenly spaced black bars called picket fences. As the mass of an object increases, the object's acceleration decreases.

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They drop picket fences, which are clear plastic strips with neatly spaced black bars. The acceleration of an item decreases as its mass increases.

The photogate emits an infrared light beam that travels left and right. When the beam is obstructed, you can detect it. The graphs and numbers will vary if you fling the picket fence down instead of dropping it owing to factors other than gravity acting on it. Gravity works against it as you toss it, thus they vary as well, and ultimately return tends to diminish. For the given data, the acceleration due to gravity calculated using quadratic curve fitting is 9.726 m/s2.

The goal of this exercise was to use the slope of a velocity vs time plot to calculate the acceleration of a free-falling object. If you drop the picket fence from the same height each time, the photogate will always report a slope of 9.8.

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The acceleration is obtained from the net force and the mass of a body.

According to the Newton second law, we know that force is the product of the mass and the acceleration of a body. Given the fact that the force applied on the body is in opposite direction to the friction, we can be able to obtain the friction from the images shown in the problem.

In the first case;

Force = mass * acceleration

acceleration= force/mass

acceleration= 175 N/50 = 3.5 m/s^2

In the seconds case;

Net force = 330 N - 196 N = 134 N

acceleration= force/mass

acceleration= 134 N/200 Kg = 0.67 m/s^2

In the third case;

Net force = 373 N - 147 N = 226 N

acceleration= force/mass

acceleration= 226 N/50 Kg

= 4.52 m/s^2

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The car's (centripetal) acceleration would be 6.97 meters / second², its value in terms of acceleration due to gravity would be 0.71 g and the centripetal force acting on the car would be 4774.5 Newtons.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

As given in the problem a race car rounds a curve at 55 m/s. The radius of the curve is 434 m, and the car's mass is 685 kg. (Assume the car's speed remains constant. Take the radially inward direction to be positive.

The centripetal acceleration of the car = v² / r

                                                                =55² / 434

                                                                = 6.97 meters / second²

The centripetal force acting on the car = m×v² / r

                                                                 =685× 6.97

                                                                 =4774.50 Newtons

Thus, the centripetal force acting on the car would be 4774.5 Newtons.

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The experimental value of the expression due to gravity through the experiment will come out to be 8.41u, the error in the value has Accord because of air friction.

Acceleration due to gravity is a form of acceleration that is exercised by the gravitational pull of the earth its value is fixed at the surface n is equal to 9.8u.

Aries composed of molecules and their food when an object passes through air strikes the a molecules they are molecules according to Newton's third law strike back at the object therefore reducing its speed. This force by the molecule is known as air friction.

The setup of the given experiment consists of:

A bob of mass m

A stopwatch with high accuracy

An inch tape

A speedometer

Experiment is conducted in the following manner:

Using Newton's first law of motion

i.e. v = u + a × t  

Where,

u is initial velocity

v is final velocity

a is acceleration due to gravity

t is time taken to cover distance

From the data given v = 16.82m/s

t is 2 seconds

Substituting value in Newton's first law of motion we get

Value of acceleration due to the gravity = 8.41

Therefore, The experimental value of the expression due to gravity through the experiment will come out to be 8.41u, the error in the value has Accord because of air friction.

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Under the same conditions, the height of a person whose film image is 16 mm is 1.44 m.

The magnification of a lens is defined as the ratio of the height of an image to the height of an object.

The formula for magnification of a lens is given as;

M = v/u = hi/h

where;

Under the same conditions, the height of a person whose film image is 16 mm is calculated as follows

M = 20 mm / 1.8 m = 16 mm/h

20 mm / 1.8 m = 16 mm/h

h = (16 mm / 20 mm) x 1.8 m

h = 1.44 m

Thus, under the same conditions, the height of a person whose film image is 16 mm is 1.44 m.

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