A dart shot at a monkey is traveling 10 m/s horizontally, while simultaneously traveling 7 m/s downward. At what angle below the horizontal is the dart traveling? Answer in degrees

Fuse, breakers, and other overcurrent protection devices set an appropriate current limit and sever short circuits.

The size of the overcurrent protection system depends on the overcurrent protection system type and the maximum current that can travel through the circuit components. National codes specify the size and design of the overcurrent protection system. The size of the overcurrent protection devices is typically determined by the array's short-circuit current.

The PV is a limited current source, meaning that the short-circuit current is the highest current produced by this source, which is the major justification for choosing the array's short-circuit current.

The distribution lines of electric grids integrated with DER are safeguarded by an overcurrent protection system. The phase overcurrent protection and the ground overcurrent protection are two further classifications for this protection strategy. Depending on the distribution method, the relays employed in such schemes could be either directional (functioning for in-front events) or nondirectional (working for all). Radial distribution systems are where nondirectional relays are most frequently employed.

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From steam table,

(a).

The final temperature is 180°C.

At 10 bar, saturated liquid,

Temperature = 180°C

(b).

Heat removed from the steam is  2065.6 kJ/kg.

At 10 bar - 200°C, h1 = 2828.27 kJ/kg

At 10 bar, saturated liquid, h2 = 762.68 kJ/kg

Heat removed = h1 - h2 = 2065.6 kJ/kg

(c).

Work done is 204.9 kJ/kg.

Work done = heat removed - change in internal energy = 2065.6 - (2622.26 - 761.55) = 204.9 kJ/kg

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Option c is the right solution. This shows that it has gone beyond the threshold when the difference is immediately noticeable.

The lowest kinetic energy that two moving particles must have when they collide is known as the threshold energy in particle physics. Always larger than or equal to the desired particle's rest energy is the threshold energy. As a result, this is changed to: f = W/h, where h is the Planck constant. So, we can calculate the threshold frequency if we know the work function. Photoelectric effect in radioactivity. The frequency at which the effect is only feasible is known as the photoelectric threshold frequency, denoted by the Greek letter nu with the subscript zero, v0. The threshold energy is the lowest energy that each colliding molecule must have in order for the collisions to be successful.

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Answer:

i don't know what?

Explanation:

i said what?

option c When a ball is thrown horizontally at 100 m/s, a second ball is dropped from the same height at the exact same moment neither they both hit the ground at the same time .Here gravitational force plays role.

Gravitational force tells if Any two bodies' mutual attraction is directly proportional to the sum of their masses and inversely proportional to the square of their separation. As a "thought experiment," Newton proposed the Newton's cannonball, which supports the idea that gravity is a powerful force that affects planetary motion.

He assumed a cannon on top of a very tall mountain peak in this thinking experiment. If the cannon is loaded with gunpowder and fired, the following situations might occur.

If the cannon's speed is modest, it will fall to Earth in a projectile motion.

If the speed of the cannon is equal to the orbital speed at that altitude, the cannonballNo change in gravity affects the speed of light.

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a. Angular speed, w = v/r where  v is the linear speed, r is the radius

b. v = w*r

c. I(disk)=1/2mr^2,I(hoop)=mr^2, I(Ball)=8/3mr^2 disk is the smallest moment of inertia.

A body has an attribute called inertia that makes it resist attempts to move it or, if it is already moving, to alter the speed or direction of its motion. A body's inertia is a passive characteristic that prevents it from doing anything other than opposing active agents like forces and torques. A moving body continues to move not because of its inertia but rather because no force exists to stop it, alter its direction, or accelerate it.

A body's moment of inertia, which quantifies its resistance to the action of a force, and its mass, which determines how resistant it is to the action of a force, are two numerical measures of inertia.

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Force of friction if the coefficient of static friction is 0.44 is 189.728N. The force of friction if the coefficient of kinetic friction is 0.27 is 116.424N.

Force of friction:

The force that resists the sliding or rolling of one solid object over another is called the force of friction.

The formula for the force of friction is:

F =μN

F = force of friction

μ= coefficient of friction

N = normal force

We have to find the force of friction when the coefficient of static friction is 0.44.

[tex]F_{s}[/tex] = μ N

    = μmg

    = 0.44× 44×9.8

    = 189.728N

Now we have to find the force of friction when the coefficient of kinetic friction is 0.27

[tex]F_{k}[/tex] = μN

    = μmg

    = 0.27 × 44 × 9.8

    = 116.424N

Therefore the force of friction [tex]F_{s}[/tex] is 189.728N and [tex]F_{k}[/tex] is 116.424N

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In astronomy class friends plan to get married at sunset, and they want the moon to be high in the sky. The moon should be First Quarter phase.

The study of the cosmos and everything in it that is not within the atmosphere of Earth is referred to as astronomy. Astronomers investigate the locations, movements, and characteristics of celestial objects. Astrology tries to understand how those placements, motions, and qualities impact people and events on Earth. The main distinction between astrology and astronomy is what determines the outcome. The Sun and Moon's effects during a particular zodiac sign are interpreted by the ancient tradition of astrology. 12 divisions of the sky, each measuring precisely 30 degrees, are said to exist in astrology. The scientific community has rejected astrology because it lacks the ability to explain how the cosmos works. The premises and claimed effects described in astrological traditions have not been proven by scientific research to be true.

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A singularity is a point where some property is infinite.

In technology, singularity describes a hypothetical future where technology growth is out of control and irreversible. Most especially, the singularity would require computer programs to become so advanced that artificial intelligence transcends human intelligence, potentially rubbing out the boundary between humanity and computers. Nanotechnology is recognized as one of the key technologies that will make singularity a truth. The technological singularity or simply the singularity is a hypothetical future point in time at which technological growth becomes uncontrollable and irreversible, resulting in unforeseeable changes to human civilization.

So we can conclude that a point where something is infinite is known as a singularity.

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Answer:

Tungsten oxide...

hop e it helps

The distance traveled will therefore simply be equal to the original velocity multiplied by the time period. The result of adding these two numbers together is about 2.41, or 4 times 10 to the ninth meters.

Some star material, with an initial velocity of roughly 40,232,600 m/s, is accelerated outward in specific shock waves that are created by a star dying. Let's record that as beginning velocity, which is 40 million 233,600 meters per second. And we inquired as to how far it travels in a minute. Since we are in space, there are essentially no accelerations to take into account. Therefore, we don't need to think about any form of slowing down or speeding up of this velocity.

The distance traveled will simply be equal to the original velocity multiplied by the time interval because this is how long it has been moving. And when we combine those two figures, we get a result of around 2.41, or 4 times 10 to the ninth meters.

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Substances that are soluble in water are polar substances which is a molecular characteristics that is not possessed by insoluble substances.

The molecular characteristics of a substance is the features that are exhibited by the ions and molecules of that substance that makes it unique from others.

Soluble substances are those substances that are able to dissolve in water while insoluble substances are those substances that are not able to form solution with water.

Example of soluble substances are salt and sugar while examples of insoluble substances are metals and fat.

The soluble substances are polar substances are they possess a negative and a positive pole in their molecules that allows for dissolution in water.

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The car can coast up to the height of 30.34m and (b) the thermal energy generated by friction is 118047.75J.

The energy in which an object that has as a result of motion is called as kinetic energy. A force is applied to an object in instruct to accelerate it. We have to put the effort in order to apply the force. After the completion of the work the energy is removed from the item and then it moves at a new, constant speed.

Potential energy is defined as the form of stored energy which is dependent on the ordering of system components.

(a) given; [tex]v=24.4m/s^{2}[/tex], [tex]g=9.81m/s^{2}[/tex]

KE(initial)= PE(final)

[tex]\frac{1}{2} mv^{2}[/tex]=[tex]mgh[/tex]

[tex]h=\frac{v^{2} }{2g}[/tex]

[tex]h=\frac{24.4^{2} }{2*9.81}[/tex]

h=30.34m

(b) If, in actuality, a 750 kg car with the same initial speed is observed to coast up a hill to a height 14.3 m above its starting point

E(friction)=KE(initial)-PE(final)

E(friction)=[tex]\frac{1}{2} mv^{2}-mgH[/tex]

E(friction) =[tex]\frac{1}{2}(750)24.4^{2} - (750)(9.81)(14.3)\\[/tex]

E(friction)=118047.75J

A friction is defined as the force which prevents two objects from moving against each other.

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The magnitude of the average velocity of chickadee flight is 2.5 m/s

Average velocity is defined as the rate of change of displacement with respect to time. Mathematically, we can write -

v = Δx/Δt

Given is a chickadee who flies 30 m to the West for 6 seconds and then 40 m to the North for 14 seconds.

Now, the displeacement of the chickadee, can be calculated as follows -

|Δx|² = (30)² + (40)²

|Δx|² = 900 + 1600

|Δx|² = 2500

|Δx| = [tex]\sqrt{2500}[/tex]

|Δx| = 50

Now, the average velocity of the chickadee will be -

v = |Δx|/Δt

v = 50/(6 + 14)

v = 50/20

v = 2.5 m/s

Therefore, the magnitude of the average velocity of chickadee flight is 2.5 m/s

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Answer:

See below

Explanation:

The half life is 12 year, so after 12 years HALF Of the sample will be gone and half will be left

1/2   *   1 x 10^16  =   .5 x 10^16   = 5 x 10^15 nuclei

Rocket B's speed in relation to rocket A is 0.4c

If the two frames of reference's directions are at odds with one another, the two frames of reference would see the relative speed as the total of their individual speeds. Furthermore, if the motion of the two frames is parallel, relative speed would be seen as the difference between the individual speeds.

The Earth's frame of reference is at rest, but the two rockets passing by are traveling relativistically with respect to Earth.

Since both rockets are moving in the same general direction, rocket B's relative speed to rocket A is equal to the difference between the two rockets' individual speeds.

Speed of rocket A is v = 0.70c

speed of the rocket B is u =0.86c

let,

speed of the rocket B with respect to rocket A is u₁

Now,

u₁ = (u - v) / [(1 - u) * (v / c²)]

u₁ = (0.86 - 0.70) / (1 - 0.86 * 0.70 / c²)

u₁ = 0.16 / (1 - 0.6) = 0.16 / 0.4

∴ u₁ = 0.4c

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Answer: See Below

Explanation:

A reflective glass mirror will reflect all the components of white light and not allow visible light to pass through.

A transparent glass block will allow light to pass through with some refraction.

Answer:

18m/s

Explanation:

Divide 450 into 25 to know how many m per second and it gives 18m per second

The percentage of additional power transmitted is 73.2%.

A conductor is an object or form of fabric that permits the flow of fee in a single or extra instruction. Materials manufactured from steel are not unusual electrical conductors.

A conductor, or electrical conductor, is a substance or fabric that allows energy to drift through it. In a conductor, electric rate carriers, typically electrons or ions, pass without problems from an atom to an atom when voltage is carried out.

IN DC 2-WIRE SYSTEM

If R is the resistance oper conductor,then the power transmitted is

P=VI

And power loss is = I²R

IN AC 3-PHASE 3 WIRE SYSTEM

P=√3VIcos φ

 =√3VI             [as unity power factor,cos φ=1]

power loss= 3I²R

The percentage of additional power transmitted in a phase 3 wire ststem is

(√3VI-VI  )/ VI  *100 =73.2%

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The expected result of the experiment is that the liquid air will boil because the extreme difference in temperature will cause heat to be transferred from the ice to the liquid air ( B ).

The temperature of the liquid air = - 200 °C

The temperature of the block of ice = - 12 °C

Since they are in a thermally insulated flask, the heat will be transferred until both the objects' temperature becomes equal. So the temperature of liquid air rises and the temperature of ice decreases. The boiling point of liquid air is - 194.35 °C. So the liquid air boils.

Option A would have been correct if the final statement was decrease in temperature and not increase in temperature. Option C is incorrect because the ice becomes colder. Option D is incorrect because liquid air will boil.

Therefore, the expected result of the experiment is that the liquid air will boil because the extreme difference in temperature will cause heat to be transferred from the ice to the liquid air and the molecules of the liquid air will begin to leave the liquid ( B ).

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a) It takes you 1.893s to reach the opened door and jump in.

b) The maximum time that you can wait before starting to run and still catch the bus is 1.27s

The time which the passenger can delay and still catch the bus must be less than this.

From the question:

Distance between the passenger and the door of the bus d = 9

Acceleration of the bus a¹ = 1.0m/s²

Speed of the passenger v = 5.7m/s

Time taken for you to catch up with the bus must occur at the exact position with the bus,

Let the position = y

The time taken for you to reach the point:

t = total speed/distance

t = y + 9/5.7 ..................... eqn 1

The time taken for the bus to reach the same point;

y = vt + 1/2at²

Initial velocity of the bus is zero

y = 0.5*(1)t²

y = t²/2

t = √2y .......................eqn 2

We solve eqn (1) and (2) together:

9 + y = 5.7 * √2y

81 + y² + 18y = 64.98y

y² - 46.98y + 81 = 0

y = 45.187m or 1.792m

Now we take the smallest distance: x=1.792 m

Time taken for both to reach this point: (put x in eq. (1))

t = 1.792+9/5.7

t = 1.893s

For the maximum waiting time we find have:

Relative acceleration, ar = -1m/s⁻²since the bus is moving away from the intended

The final relative velocity for the passenger to catch it, vr = 0m/s⁻¹

Using equation of motion:

s = 9 + 1/2 * (-1)t²

also the initial relative velocity:

vr = ur + ar.t

ur = 5.7 - t

and

vr² = ur² + 2ar.s

0² = (5.7 - 1)² - 2 * 1 * (9 - 0.5t²)

t = 1.27s

Here's the complete question:

You are 9.0 m from the door of your bus, behind the bus, when it pulls away with an acceleration of 1.0 m/s2. You instantly start running toward the still-open door at 5.7 m/s.

How long does it take for you to reach the open door and jump in?

What is the maximum time you can wait before starting to run and still catch the bus?

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The - 60.6 N is the average force experienced by the clay.

The force applied by a body moving at a constant velocity (rate of speed) over a fixed time period is known as the average force. The magnitude and direction of force are both vector quantities. The term 'average' denotes that this velocity was not precisely measured or was not 'instantaneous.' As a result, the average force over a given time period is equal to the body's mass multiplied by its average velocity. The magnitude and direction of the average force are both vector quantities.

Average acceleration = Δv/t

We know F = ma,

We have m = 0.24

Δv = Final velocity - Initial velocity

Δv = (0 - 23) m/s
Δv = -23 m/s

t = 91 ms or 0.91 s

As we know acceleration (a) = v/t

So, a = -23/0.91

a = - 25.27 m/s²

Put the above value in formula F = ma.

F = (0.24 kg) × (-25.27 m/s²)

F = - 60.6 N

Therefore, the average force experienced by the clay is - 60.6 N.

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The complete question is:

"A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 23 m/s. the clay comes to a stop against the wall in 91 ms, what is the average force experienced by the clay"

Answer:

a

Explanation:

8.33 x 10²v .

The potential difference at which proton fall is :   = 8.33 x 10²v .

Here,

The potential difference is as follows:

Energy change, [tex]e^{v}[/tex] = 1/2 m(v2² - v1²)

By substituting,

1 . 602 x 10 ⁻¹⁹ = 1/2 x 1.67 x 10 ⁻²⁷( 5² - 3²) x 10 ¹⁰

v x 1.602 x 10⁻¹⁹ = 0.835 x 10⁻¹⁷ x 16

v = ( 0.835 x 10⁻¹⁷ x 16 ) / 1.602 x 10⁻¹⁹

  = 0.835 x 10²x16 / 1.602

  = 13.36 x 10² / 1.602

  = 8.33 x 10²v

So the potential difference is : 8.33 x 10²v .

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The assumptions of the kinetic theory is given below.

The kinetic theory postulates that liquid molecules constantly move, expressing their thermal energy. These molecules frequently clash with one another, and occasionally one or another surface collision gains enough momentum to propel it out of the liquid and into the sky.

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The range of baseball thrown at a speed of Vo at an angle of elevation theta is Vo^2sin2theta/g.

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In case of a block resting on the top of a  table and we are considering only the forces acting upon the block.          

                      (block)

     _______[[[[[[[[[]]]]]]]]]]_______  ( table)

             /                                \

           /                                     \

         /                                         \

figure represents block resting on a table,

Gravity P

Spring: A

Tension A

Normal: P

Friction A

Air Res.: A

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The torque on the motor's shaft is 1.375 Nm.

We need to know about torque to solve this problem. Torque is the rotational equivalent of linear force. It can be determined as

τ = F x r

where τ is torque, F is perpendicular force and r is radius.

From the question above, the parameter given are

m = 1.1 kg

d = 25 cm

r = 12.5 cm

Convert radius to meter

r = 12.5 cm

r = 12.5 x 10¯² m = 0.125 m

Find the weight

W = m . g

W = 1.1 . 10

W = 11 N

By substituting the parameters, we get

τ = F x r

τ = 11 x 0.125

τ = 1.375 Nm

Hence, the moment applied is 1.375 Nm

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