a candle that is 10.0 cm high is placed 30.0 cm in front of a diverging lense the lens has a focal length of -20.0 cm what is the magnification of the image

2565Ns is the impulse applied to the ball by the racket when a 57 g tennis ball is served at 45 m/s velocity and the ball started from rest.

Given :

The mass of tennis ball=57g

velocity applied =45m/s

Now to find the impulse applied to the ball by the racket;

The general formula for impulse is J = Δp

⇒J = Δp               ∵  (Δp=mΔv )

∴ J = mΔv

Now substituting the values

J=57*45

J=2565Ns

Hence, 2565Ns is the impulse applied to the ball by the racket when a 57 g tennis ball is served at 45 m/s velocity and the ball started from rest.

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An average tendon can withstand 16000 per square inch of force (psi). The Achilles tendon may begin to fail at a force of F = 1280 pounds.

That meaning of the term "force" is obvious. At this point, it is quite acceptable to refer to a force as a push or possibly a pull. An item does not "have energy in it" or "encompass energy." A force is applied to one thing by another. A factor is anything that affects non-living things as well.

Inertia is what holds the cosmos together. Literally. That could prevent matter from having the electric forces necessary to produce its system layout. Vibrating particles generate heat and rotational motion, which operate to counteract inertia.

Area of tendon 0.4×0.2

=0.08 square inch.

0.08 square inch tendon =16000×0.08

F =1280 pound.

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Frequency is inversely proportional to the time period. That is, f = 1/T.

This refers to the number of waves that passes a fixed place in a given amount of time.  Frequency is measured in hertz, this is equal to one event per second.

What is period, T ?

This refers to the time needed for one complete cycle of vibration to pass a given point. A period is measured in seconds.

Note:  AS the frequency of a wave increases, the period of the wave decreases. Frequency and Period are in reciprocal relationships.

Mathematically :

f = 1/T

T =Total time,Period

f =  Frequency

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Answer:

0.012 m/s^2 for 2 sig figs

Explanation:

Newton's Second Law of Motion says that F = ma (Force is the product of mass times acceleration).

The force is the sum of the two "guys" pushing the same direction.  Force is (25N+33N) = 58N

Mass is 5000kg

Force = ma

58N = (5000kg)*a

The units for 1 Newton are 1kg*m/s^2

58 kg*m/s^2 = 5000kg*a

a = (58kg*m/s^2)/(5000kg)

a = (58/5000) m/s^2

a = 0.0116 m/s^2 or 0.012 m/s^2 for 2 sig figs

The distance over which the force acts on the box, given that 70 N is applied to the 10 Kg box is 3.125 m

We'll begin by obtaining the acceleration of the box. Details below:

Net force = mass × acceleration

40 = 10 × acceleration

Divide both sides by 10

Acceleration = 40 / 10

Acceleration = 4 m/s²

Finally, we shall determine the distance. Details below

v² = u² + 2as

5² = 0² + (2 × 4 × s)

25 = 0 + 8s

25 = 8s

Divide both side by 8

s = 25 / 8

s = 3.125 m

Thus, we can conclude that the distance covered is 3.125 m

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The energy that results from an object's location in relation to other things is known as potential energy. Potential energy is frequently connected to restorative forces like the force of gravity or a spring.

The mechanical energy of an item is the total of its potential and kinetic energies. A falling object loses potential energy while gaining kinetic energy. The difference between the increase in kinetic energy and the reduction in potential energy is exact.

Potential energy and kinetic energy vary primarily in that one is the energy of what can be and the other is the energy of what is. In other words, stored energy is ready to be released but potential energy is immobile.

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Answer: D. Annular Solar Eclipse

Explanation:

An annular solar eclipse happens when the Moon passes between the Sun and Earth, but when it is at or near its farthest point from Earth. Because the Moon is farther away from Earth, it appears smaller than the Sun and does not completely cover the Sun.

(A) The two additional forces that act on the sled as it travels from the top of the hill to the bottom are friction force and weight of the children.

(B) The force of friction is opposing the motion while the weight of the children is assisting the downward motion.

The forces that act on the sled as it travels from the top of the hill to the bottom with either aid the downward motion or oppose the downward motion.

The forces acting on the sled include the following;

The weight of the children is acting downwards and it will increase the motion downwards since there in the same direction.

The force of friction between the surface of the sled and the hill will oppose the downward motion of the children as the father exerts the downward force.

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The car’s average acceleration is 6 meter/second^2.

Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).

Given that: the car can accelerate from rest to 30 m/s in 5 seconds.

Hence, average acceleration of the car = change in speed/time interval

= ( final speed - initial speed)/time interval

= ( 30 m/s - 0 m/s) / 5 second

= (30/5) meter/second^2

= 6 meter/second^2.

Hence, the  average acceleration of the car  is  6 meter/second^2.

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The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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The correct answer is option a. According to the uncertainty principle, the more we know about a particle's momentum, the less we know about its location or position.

The uncertainty principle is a fundamental principle in quantum mechanics that states that it is impossible to simultaneously know both the exact position and momentum of a particle. This is because any attempt to measure the position of a particle with high accuracy will inevitably disturb its momentum and vice versa.

The uncertainty principle is a consequence of the wave-particle duality of quantum mechanics, which states that all particles exhibit both wave-like and particle-like behavior. When we measure the position or momentum of a particle, we are essentially measuring the wave-like properties of the particle, which are inherently uncertain. This uncertainty is inherent in the nature of the universe and cannot be overcome, no matter how advanced our measurement technologies become.

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When the gas is compressed then the pressure of the gas increases .

The Pressure of Gas is defined as the stress exerted on the walls of its container that the gas exerts.

By the property of Compressibility of the gas ;

if the temperature is maintained constant , and when the gas is compressed ,

the volume of the gas decreases which leads to the increase in the pressure of the gas .

that means , when the gas is compressed then the pressure increase  .

Therefore , the increase in compression of gas leads to increase in pressure .

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After thrown from his horse, Collin might have trouble with his occipital lobe.

The occipital lobe is one of the four significant lobe of the cerebral cortex in the mind of warm blooded creatures. The name gets from its situation at the rear of the head, from the Latin ob, "behind", and caput, "head".

The occipital lobe is the visual handling focus of the mammalian mind containing a large portion of the physical locale of the visual cortex. The essential visual cortex is Brodmann region 17, ordinarily called V₁(visual one). Human V₁ is situated on the average side of the occipital curve inside the calcarine sulcus; the full degree of V₁ frequently go on onto the occipital shaft.

V₁ is much of the time likewise called striate cortex since it tends to be distinguished by a huge stripe of myelin, the Stria of Gennari. Outwardly determined locales outside V₁ are called extrastriate cortex. There are numerous extrastriate districts, and these are specific for various visual errands, for example, visuospatial handling, variety separation, and movement insight. Two-sided injuries of the occipital curve can prompt cortical visual deficiency.

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The sign of qsystem and qsystem are - qsystem>0 and qsystem>0.

The Q-system for rock mass-containing classifications is developed by the barton, Lien, and Lunde. It expresses the quality of the rock mass-containing in the so-called Q-value, on whichs designe are based and support recommendations of the underground excavations.

systems is a portions of the Universe that had been chosen up for studying in the changed that takes places withing it in responses to varying conditions. A systematic may be complexity, such as a planet, or relatively simple, as the liquid withing a glass.

Beacuse when system gain extra heat then surrounding q is posetive and when the surrounding works on the system then w is also positive.

Thus both qsystem and

qsystem are same.

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Answer:

Below

Explanation:

The friction subtracts from the forward force

F = ma

(5000 - 1250) / 1500 = a    = 2.5 m/s^2

Newton's third law states that any action will have a(n) equal and opposite reaction.

Tarzan weighs 73 kg. From a 26.1 m vine, he swings. Tarzan is travelling at 3.65 m/s when he is at his lowest point in his swing. The vine is under 2635.3 kg-m/s^2 of tension at the swing's lowest point.

The force communicated through a rope, string, or wire when two opposing forces draw on it is known as tension. The tension force pulls energy equally on the bodies at the ends and is applied along the entire length of the wire. Every physical object in contact with another one applies some force to that object. For items that are hung, the tension is equal to the gravitational acceleration times the mass of the object.

Here m=73kg

acc (a) = 26.1 m

g=10

d= 3.65 m/s

Tension t = mg + ma.

Tension t = m(g + a).

t = m(g + a)

t= 73(10+26.1)

t= 73(36.1)

t= 2635.3 kg-m/s^2

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If the stone is dropped off a cliff and hit the ground with speed of 120 ft/sec , then the height of the cliff is  225 feet .

a stone is dropped off a cliff ,

the speed at which the stone hit the ground is = 120 ft/s ;

the Kinematic Equation states that ,  v - u = 2gh ;

since the stone was at rest when it was dropped off cliff  ,

the initial velocity (u) is = 0 ;

it hit the ground with speed 120 ft/sec , so the final velocity (v) is = 120 .

the acceleration due to gravity (g) is taken as 32 ft/s² .

substituting the values in the kinematic equation ,

we get ;

120² - 0² = 2*32*h

14400 = 64*h ;

h = 14400/64 ;

So , h = 225 ft .

Therefore , the height of the cliff is 225 ft .

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The angle between the resultant and the larger force is 60 degree  if resultant force value is value 9.1Newtons.

We know that resultant force is given by the superposition principle which uses a formula

Resultant force =√((F₁)² + (F₂)² + 2 ˣ F₁ ˣ F₂ ˣ cosθ)

Superposition principle of electric force to find the resultant power, all accuses are thought about independently of that specific charge as though any remaining charges are missing. Along these lines, for each charge, the power on that specific charge is to be found out. Then the vector amount of the multitude of forces gives the resultant forces on that charge.

We have resultant force as 9.1Newton,F₁=6.2newton,F₂=4.4 newton

So,on putting the values,we get

=>(9.1) = √[(6.2)² + (4.4)² + 2 × 6.2×4.4×cosθ]

Squaring on both sides,we get

=>9.1 × 9.1 =(6.2)² + (4.4)² + 2× 6.2×4.4×cosθ

=>82.81=38.44 + 19.36 + 54.56×cosθ

=>82.81=57.8+ 54.56×cosθ

=>82.81-57.8= 54.56×cosθ

=>25.01=54.56×cosθ

=>cosθ=25.01/54.56

=>cosθ = 0.458

=>cosθ=cos(62.5)°

=>θ=62.5°

=>θ=60°(nearest 10th)

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  (+ , -)

- sin(55)=y/18.5 -> 18.5sin(55)=y

- cos(55)=x/18.5 -> 18.5cos(55)=x

The magnitude will be given by |v|=a2+b2 if v=a,b is indeed the coordinates.In accordance with the application the direction usually equal to the angle made with the x-axis or the y-axis.The formula tan=(ba)=tan1(ba) can be used to determine the direction of a position vector, as shown in Figure 8.8.

Any number of dimensions can be included in the generalization of the vector magnitude formula.For instance, the formula for the magnitude of a four-dimensional vector a=(a1,a2,a3,a4) is a=a21+a22+a23+a24.

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The parameter of the dark energy equation of state is viewed as an arbitrary constant with a value falling between the range $w in [-1.5, -0.5]$, the upper and lower bounds of which are determined by recent measurements. We get scale factor approximations with better than 1% accuracy.

Mass of a solid substance per unit volume. The equation for density is d = M/V, where d represents density, M is mass, and V is volume. Density is often measured in grammes per cubic centimetre. Its mass per unit of volume is a measure of a substance's density. Although the sign can also represent the Latin letter D, it is most frequently used to represent density. Mass divided by volume is the formula for density in mathematics: displaystyle rho = frac mV. where V is the volume, is the density, and m is the mass.

How much mass there is in a specific volume or area is determined by its density. The formula for determining a substance's density is to divide its mass by its volume.

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The height of the cliff, given that her phone landed 20 m away when she accidentally threw her phone with a velocity of 5 m/s is 78.4 m

To determine the height of the cliff, we must first obtain the time taken for her phone to reach the ground. This is obtained as follow:

s = ut

20 = 5 × t

Divide both sides by 5

t = 20 / 5

t = 4 s

Finally, we shall determine the height of the cliff. Details below:

h = ½gt²

h = ½ × 9.8 × 4²

h = 4.9 × 16

h = 78.4 m

Thus, the height of the cliff is 78.4 m

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Answer:

Which is correct? "The answer to this question.." or "The answer of this question "?

1

If the spacecraft is moving at a speed of 0.800c , then the ratio of length of spacecraft to its length after landing is  0.600  .

Speed of Spacecraft is given as = 0.800c ,

the spacecraft is viewed through telescope ,

we have to find the ratio of the lengths of the spacecraft as viewed through the telescope on earth to its length measured after landing on earth .

let length of spacecraft viewed from telescope be = L

let length of spacecraft after landing be = L₀ :

So , by formula of length: L = L₀√(1 - v²/c²)

Substituting the values of V , we get

L/L₀ = √(1 - (0.800c)²/c²)

= √(1 - 0.800²)

= 0.600 .

Therefore , the ratio of the lengths of the spacecraft is  0.600  .

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The magnitude of  electric field is  5.08×10^-4 N/C in North direction.

The electromagnetic field-induced magnetic and electric forces acting on a point charge are referred to as the Lorentz force. It is also referred to as electromagnetic force and is employed in electromagnetism.

Given that: charge  of the particle: q =  11.2 μC.

Velocity of the particle in the west direction: v = 11.7 m/s.

Magnetic field acting on it: B =  5.01 × 10^–5 T.

Lorentz force on the particle is: F = 9.12 × 10^–9 N.

Let the electric field = E.

So, Lorentz force on the particle is: F = q (V×B + E)

9.12 × 10^–9 =   11.2 × 10^-6 ( 11.7 × 5.01 × 10^–5 × sin90° + E)

⇒ 11.7 × 5.01 × 10^–5 ×1  + E =  7.79×10^-5

⇒ E = 7.79×10^-5 -  11.7 × 5.01 × 10^–5 ×1

⇒ E = - 5.08×10^-4 N/C

Hence,  the electric field is  5.08×10^-4 N/C in North direction as magnetic force is acting south direction according to cork screw law.

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Answer: Acceleration

Explanation:

When two objects interact through the gravitational force between them, the more massive one has a lower acceleration than the less massive object.

We can determine if a star is moving toward or away from earth by measuring its brightness.

The correct answer would be:

[tex]\fbox{False}[/tex]

Initial velocity=- 80km/h, the diameter of the tyre= 75cm, and revolution= 300. initial angular velocity wi= v/r (80) (5/18)/75/200= 59.26 rad/sec. so, angular acceleration is 0.93 rad/sec2.

We must first determine the tires' angular acceleration. Let's transform the provided translational velocity to rotational velocity to do this. Thus, the tires' angular acceleration is 2.42 rad/s2 rad/s2.

The angular velocity (w), a vector quantity in a uniform circular motion, is determined by dividing the angular displacement (), also a vector quantity, by the change in time (t). Speed is equal to |w|R and is calculated by dividing the arc length traveled (S) by the change in time (t).

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According to the given statement The drag force is four times as strong, and the viscous force is double that.

It is the resistive (internal) force a fluid offers when tangential force is applied to its surface (shear). The fluid's near-surface particles stick to the surface when it flows over it. The fluid's velocity profile the about surface is thus zero.

Newton's law of fluidity states. The relationship between the shear stress and velocity gradient is straightforward. The negative magnitude of velocity gradient within the same two neighboring fluid layers has a direct relationship with the shear stress between them.

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