Q.3 Fill the blanks with the correct answer: (5 points) a- The analogy of the force in rotational motion is Torque b- The effect which causes the air gap area to increase is called Fringing Effect. c-

Answer:

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Explanation:

Answer:

V initial = 29.4 m.s²

Explanation:

( Using the laws of motion)

V final = V initial + Acceleration × time

0 = V initial + ( -9.8)(3)

29.4 = V initial

* I took upward as positive that's why I substituted -9.8 *

* for V final we know that at maximum height the ball is not moving thats why is = 0 *

Answer:

latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure. The energy required to melt a solid to a liquid is called the heat of fusion, and the heat of sublimation is the energy

Explanation:

False. The terminator of a gene is located downstream of the coding region.The terminator of a gene is a DNA sequence that signals the end of transcription, or the process by which genetic information is converted from DNA to RNA.

It is located downstream of the coding region, which is the part of the gene that contains the instructions for making a particular protein. The terminator helps to regulate the amount of mRNA that is produced, as well as to prevent the production of unwanted transcripts. The precise location and sequence of the terminator vary among different genes, but its role in regulating transcription is an important aspect of gene expression.

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Answer:

Explanation:

MASS of a body indicates the quantity or amount of matter contained in it.S.I, unit of mass is kg

Answer:

the answer is C

Explanation:

i did this

Renewable resources are sources of energy that can be replenished naturally or through sustainable practices. They include various forms of energy generation such as solar, wind, hydroelectric, geothermal, and biomass.

Solar Power: Power stations that use solar energy capture sunlight through photovoltaic panels or solar thermal systems to convert it into electricity.

Wind Power: Wind turbines in wind power stations convert the kinetic energy of wind into electrical energy.

Hydroelectric Power: Power stations that harness the potential energy of flowing or falling water in rivers or dams to generate electricity.

Geothermal Power: Power stations that utilize the heat from the Earth's interior to produce steam, which drives turbines and generates electricity.

Biomass Power: Power stations that burn organic materials such as wood, agricultural residues, or dedicated energy crops to produce heat or electricity.

It's important to note that the specific type of renewable resource used by a power station depends on factors such as the available resources in the area, the technology employed, and the local conditions.

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Answer: C. (Force = 2, time = 4.5)

Explanation:

J = FΔt

A. J = 5*2

A. J = 10

B. J = 1*8.5

B. J = 8.5

C. J = 2*4.5

C. J = 9

D. J = 3*2

D. J = 6

Answer:

C. (Force = 2, time = 4.5)

Answer:A convex lens is employed in microscopes and magnifying glasses to converge all incoming light rays to a particular point. ...

The convex lens is used in cameras. ...

A convex lens is used for the correction of hyperopia. ...

The converging lens is used in the projector as well.

The volume flow rate through a pipe is directly proportional to the cross-sectional area of the pipe and the speed of the flow.

This means that the volume flow rate is equal to the product of the area and speed.

In other words, if the area of the pipe increases while the speed of the flow remains constant, the volume flow rate will increase.

Similarly, if the speed of the flow increases while the area of the pipe remains constant, the volume flow rate will also increase.

Overall, the volume flow rate is an important factor to consider in many fluid dynamics applications, such as in plumbing, irrigation, and industrial processes.

Therefore, answer (a) It is equal to the product of the area and speed is correct.

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The volume flow rate through a pipe is directly proportional to the cross-sectional area of the pipe and the speed of the flow.

This means that the volume flow rate is equal to the product of the area and speed.

In other words, if the area of the pipe increases while the speed of the flow remains constant, the volume flow rate will increase.

Similarly, if the speed of the flow increases while the area of the pipe remains constant, the volume flow rate will also increase.

Overall, the volume flow rate is an important factor to consider in many fluid dynamics applications, such as in plumbing, irrigation, and industrial processes.

Therefore, answer (a) It is equal to the product of the area and speed is correct.go

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Answer:

it is A

Explanation:

i had the question

The rotational kinetic energy of the armadillo has increased by 25 joules.

This is because the armadillo is rolling down the hill, which means that it is rotating around its center of mass. As it rolls, it is converting its gravitational potential energy into translational and rotational kinetic energy.

Since the gravitational potential energy has decreased by 40 joules and the translational kinetic energy has increased by 15 joules, the remaining 25 joules must have been converted into rotational kinetic energy. This means that the armadillo's rotational kinetic energy has increased by 25 joules.

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Vector diagram B will result in the largest resultant vector. Correct option is B.

Vector is a mathematical quantity which has both magnitude as well as direction. Force, displacement, velocity & acceleration etc. are the examples of vectors. Vectors are denoted by a standard letter and an arrow upon it.

The resultant(R) of two vectors R1 and R2 having angle θ between them are given by,

R² = R₁² + R₂² + 2R₁R₂cosθ

A) in this diagram single vector is there,

so R = R₁

B) in this diagram two vectors are in same direction with zero angle between them. (Cos0 = 1)

R² = R₁² + R₂² + 2R₁R₂

C) & D) In these diagrams two vectors are in opposite direction with zero angle between them. (Cos180 = -1)

R² = R₁² + R₂² - 2R₁R₂

Looking at B Two vectors will be added each other and give largest resultant vector.

Hence Option B is correct.

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A pair of scissors is an example of a compound machine. Thus, the correct option is D.

A device which usually combines two or more simple machines together to work is called a compound machine. An example of a compound machine is a scissor. In a scissor, the functionality of a scissor and another scissor combines to cut a sheet of paper or cloth. Numerous compound machines can be created through the use of the six basic simple machines with each other.

Compound machines are also called as the complex machines which can be used to do more difficult jobs than simple machines alone. The tasks performed by the compound machines cannot be done easily with that of simple machines.

Therefore, the correct option is D.

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Answer:

the one that is clicked in the photo I think is right

Answer:

C. 1.42 s

Explanation:

Givens:

length = 0.5m

gravity = 9.807 m/s

Solve:

T = 2π√(L/g)

T = 2π√(0.5/9.807)

T = 2π√(0.0509)

T = 2π * 0.22579

T = 6.28318 * 0.22579

T = 1.418 ≈ 1.42s

Answer:

The velocity of Car A after the collision is 10 [m/s] in opposite direction to its original movement

Explanation:

In order to solve this problem we must use the principle of conservation of linear momentum, which is defined as the product of mass by Velocity.

P = m*v

where:

P = momentum [kg*m/s]

m = mass [kg]

v = velocity.

We have to study the moment before the collision and the moment after the collision, the moment before the collision will be taken to the left of the equal sign and the moment after the collision will be taken to the right of the equal sign.

ΣPbefore = ΣPafter

(m1*v1) + (m2*v2) = (m1*v3) + (m2*v4)

where:

m1 = m2 = 100 [kg]

V1 = velocity of car A = 8 [m/s]

V2 = velocity of car B = - 10 [m/s]

V4 = velocity of car B after the collision = 8 [m/s]

(100*8) - (100*10) = (100*V3) + (8*100)

V3 = -10 [m/s]

Answer:

Answer:

The velocity of Car A after the collision is 10 [m/s] in opposite direction to its original movement

Explanation:

In order to solve this problem we must use the principle of conservation of linear momentum, which is defined as the product of mass by Velocity.

P = m*v

where:

P = momentum [kg*m/s]

m = mass [kg]

v = velocity.

We have to study the moment before the collision and the moment after the collision, the moment before the collision will be taken to the left of the equal sign and the moment after the collision will be taken to the right of the equal sign.

ΣPbefore = ΣPafter

(m1*v1) + (m2*v2) = (m1*v3) + (m2*v4)

where:

m1 = m2 = 100 [kg]

V1 = velocity of car A = 8 [m/s]

V2 = velocity of car B = - 10 [m/s]

V4 = velocity of car B after the collision = 8 [m/s]

(100*8) - (100*10) = (100*V3) + (8*100)

V3 = -10 [m/s]

Explanation:

The appropriate options to the questions on electromagnetic waves are as follows:

1. D

2. A

3. A

4. D

Electromagnetic waves in physics are electromagnetic radiation, such as light and radio waves.

EM radiations consist of oscillating electric and magnetic fields oriented perpendicularly to each other, moving through space.

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate.

Visible light is the part of the electromagnetic spectrum, between infrared and ultraviolet, that is visible to the human eye.

A communication satellite is an artificial satellite that transmits the signal via a transponder by creating a channel between the transmitter and the receiver at different Earth locations.

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Force is the physical action that can give acceleration to a body upon which it is applied

The true statements about the forces and accelerations of each when they collide are;

The reasons why the above statements are true are given as follows:

Known:

Mass of the truck, m₁ = 5,000 kg

Mass of the car, m₂ = 1,000 kg

Velocity of the truck = \(v_t\)

Velocity of the car = \(v_c\)

According to Newton's third law of motion, action and reaction are equal and opposite

Force, F = Mass, m × Acceleration, a

Let a₁ represent the acceleration of the truck and let a₂ represent the acceleration of the car, we have;

F = 5,000 × a₁ = 1,000 × a₂

\(a_2 = \dfrac{5,000 \ kg}{1,000 \ kg} \times a_1 = 5 \cdot a_1\)

Therefore;

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Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

The doctors could see if her cells are getting the molecules they need from food and air. Doing so allows the doctors a general overview of how well her body's biological systems are performing since the basic necessities of the human system are food and oxygen. Therefore if the body is receiving both food and oxygen properly and distributing it properly and efficiently as well without any problems then the most likely outcome is that she is healthy enough to perform her tasks in the submarine under more pressure.

Answer:

The doctors could see if her cells are getting the molecules they need from food and air

Explanation:

Answer:

under developed soil horizons

Answer:

The Force between the two charges is an attractive force of 16,000N

Explanation:

Expression for the electric force between the two charges is given by

F = (k*q1*q2) / r^2

Here, k = constant = 9 x 10^9 N*m^2 / C^2

q1 = - 2.0x10^-4C

q2 = + 8.0x10^-4C

r = 0.30 m

Substitute the given values in the above expression -

One charge  is + and the other is a -, therefore the net force is an attractive force (opposites atract)

The attraction force is:

F= 9.0x10^9 * 2.0x10^-4 *8.0x10^-4 N/ 0.30^2

F= 16,000N

The force between the two charges will be 16,000 N.It is the force exerted by one charge on another charge.

The electric force between the two charges is directly propotional to the product of the charge and inversly propotional to the square of the distance between them.

The given data in the problem is;

q₁ is the megnitude of charge 1= - 2.0x10⁻⁴ C

q₂ is the megnitude of charge 2 = + 8.0x10⁻⁴ C

k is the propotionallity constant = 9 x 10⁹ Nm² / C²

r is the seperated distance = 0.30 m

F is the electric force=?

The electric force is found as;

\(\rm F = \frac{K q_14q_2}{r^2} \\\\ \rm F = \frac{9 \times 10^9 \times 2.0 \times 10^{-4}}{(0.30)^2} \\\\ \rm F = 16,000N\)

Hence the force between the two charges will be 16,000 N.

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The distance wheel goes about 1.3m after 5 rotations.

Given data :

radius = 0.26 m

rotation = 5

Distance = 0.26 x 5 = 1.3 m

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A free body diagram is a diagram that shows the direction of the forces that are acting on a body.

A free body diagram is a diagram that shows the direction of the forces that are acting on a body. We know that force is a vector quantity. This implies that the magnitude and the direction of a force are equally important when we are dealing with the forces.

Now, in a thug of war, there are two forces that are acting on the rope. The forces acts from the opposite ends in which the rope is being pulled. The rope would move in the direction in which the pulling that is exerted is found to be of greater magnitude.

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Answer:

It doesn’t really relate

Explanation:

heavier load the parachute must be moving faster to match the downward force of the greater load

and approx terminal velocity when the parachute is open

velocity for Ping pong ball with parachute = 9m/s

velocity for Soccer ball with parachute = 15m/s

velocity for Golf ball with parachute =24m/s

velocity for Watermelon with parachute = 25m/s

so weight of an object doesn’t really realted how fast it falls with a parachute

To calculate the height from which a car of mass m=1270 kg must be dropped in order to acquire a speed v=88.5 km/h, we will use the conservation of energy formula.

Conservation of energy law states that the total energy of an isolated system remains constant provided no energy is added to it or removed from it.

According to the law, energy can neither be created nor destroyed, but it can be transformed from one form to another.

Conservation of energy equation is given as,

Potential Energy + Kinetic Energy = Total Energy

Let h be the height from which the car is dropped.

Let g be the gravitational acceleration.

Using the conversion factor for speed v = 88.5 km/h to m/s, we have:

v = 88.5 km/h ≈ 24.58 m/s

The potential energy of the car before it was dropped is equal to the potential energy of the car when it reaches its maximum speed.

Also, the kinetic energy of the car when it reaches its maximum speed is equal to its total energy. We have the following:

Potential Energy = mgh

where

g = 9.81 m/s2 (gravitational acceleration),

h is the height in meters.

Kinetic Energy = (1/2)mv^2

Total Energy = Potential Energy + Kinetic Energy

Substituting,

(1/2)mv² + mgh = mgh + 0.5mv²

1/2mv²= mghh = v²/2ghh

= (24.58 m/s)²/(2 x 9.81 m/s² x h)h

= (24.58 m/s)² / (2 x 9.81 m/s²)h

= 30.3 m

Therefore, the height from which the car of mass m=1270 kg must be dropped in order to acquire a speed v=88.5 km/h is approximately 30.3 m.

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Answer:

y-component = 45.75N

x-component = 0N

Explanation:

a) The gravitational force is 1.7 * 10^4 N.

b) The acceleration due to gravity is 277 m/s^2.

We know that the gravitational force is the force of attraction that acts in the universe between any two masses that are close to each other. We can see that we have the following information;

Mass of the sun =  2 x 10^30 kg

Mass of the person = 60 kg

Radius of the sun = 695,700 km or 695,700000 m

Force of gravity = Gm1m2/r^2

G = gravitational constant

m1 = mass  of the sun

m2 = mass of the person

r = radius of the sun

Hence;

F = 6.67 x 10^-11 * 2 x 10^30  * 60/( 695,700000)^2

F =  8 * 10^21 /4.8 * 10^17

F = 1.7 * 10^4 N

The acceleration due to gravity is gotten from;

g = Gm/r^2

g = 6.67 x 10^-11 * 2 x 10^30/( 695,700000)^2

g = 1.33 * 10^20/4.8 * 10^17

g = 277 m/s^2

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When the oval of Cassini splits into two parts, the values of a and c are related by a² < c.

The polar equation for the ovals of Cassini is given by:

r² = (x² + y²) = (a² - c²) ± 2acosθ

where r is the distance from the origin to a point on the curve, and θ is the angle that the line connecting the origin to that point makes with the positive x-axis.

To investigate the shapes of these curves, we can consider different values of a and c. When a = c, the curve simplifies to a circle centered at the origin with radius a. When a > c, the curve is a single, closed oval shape, as shown below:

As a decreases relative to c, the oval shape becomes more elongated, as shown below:

When a = c√2, the curve splits into two separate ovals, as shown below:

As a continues to decrease, the separation between the two ovals increases, as shown below:

When a = c, the two ovals merge back into a single oval shape, but with the orientation reversed from the original shape, as shown below:

From this analysis, we can see that the relationship between a and c determines the shape of the oval of Cassini. When a = c√2, the curve splits into two separate ovals. As a decreases below this value, the separation between the ovals increases, and when a = c, the two ovals merge back into a single shape, but with the orientation reversed.

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