A pressure cooker has a mass of 1.5 kg and temperature of 30°C. The specific heat
capacity of the alloy from which the pressure cooker is made up of is 1000/kg
What will be its temperature when 7.5 *10') of heat is supplied to it? ​

A joule is a unit of energy.

Answer:

The work done by a force of one Newton is known as joule

Explanation:

Answer:

The motion of the moon around the earth is circular motion

Explanation:

Answer:

the correct answer is 3 meters

Explanation:

convert 1= 30 amp

which Car has the dead

battery ?

CarA

Car B

Ams => The Current i flows into the of the Battery of Qax A.

Posithe terminal

So. By using Passinge sign Convention.

Power P₁ = Vi = 12X 30

PA = 360 Watt (the)

=>Power is Positive So Car Ahabsorbing So now we can say car A has dead battery.

Power,

Connection is maintained for t = 1 min. Energy toonsffered to the dead battery

=> we know w(t) = Work = Emergy t S. Pdt fo W (1 = imin) = 360 dt

t = 60 sec = 1 min.

36. (t), 60

360 X60

|w[t=1mm) = 21.60 *Jure.

The measurement of angle R is 37°. Therefore, option A is correct.

Given information,

Angle P = 53°

Radius = PQ

Tangent = QR

As PQ is the radius of the circle and QR is tangent. The angle between the radius and the tangent is always 90° because the radius and tangent are perpendicular to each other. Thus, Angle Q is 90°.

The sum of all the internal angles in a triangle is always equal to 180°.

Thus,
∠P +∠Q + ∠R = 180°

Substituting the values:

53° + 90° + ∠R = 180°

143° + ∠R = 180°

∠R = 180° - 143°

∠R = 37°

Therefore, the measurement of angle R is equal to 37°.

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Your question is incomplete, most probably the full question is this:

Is tangent to circle p at point q. What is the measure of angle r? 37° 53° 90° 97°.

Answer:

Only one parent is needed, and it is faster than sexual reproduction.

Explanation:

Sorry I'm not the best at explaining it but that's the answer.

asexual reproduction provides an advantage to the organisms that live on a rotting log by generating huge number of creatures in a very short amount of time

Asexual reproduction refers to a type of reproduction where a child is born to a single parent. The newly created people are clones of their parents since they have the same genetic makeup and physical characteristics.

Both multicellular and unicellular species can reproduce asexually. There will be no gamete fusion involved in this procedure, and the number of chromosomes will remain the same. With the exception of specific situations where there is a possibility that a rare mutation will occur, it will inherit the same genes as the parent.

The benefits of asexual reproduction are as follows:

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The man at C must exert a force of 18 lb to prevent the pole from rotating when the man at B exerts a force of 30 lb.

Clockwise moment caused by the force P at B = P * d1 = 30 lb * 3 feet = 90 lb-ft

The counterclockwise moment caused by the force F at C = F * d2

Since the resultant moment is zero, we have:

90 lb-ft = F * d2

To find F, we can rearrange the equation:

F = 90 lb-ft / d2

Substituting the value of d2 (5 feet):

F = 90 lb-ft / 5 feet = 18 lb

Force is a fundamental concept in physics that describes the interaction between objects and their ability to cause changes in motion or deformations. It is a vector quantity, meaning it has both magnitude and direction. Force can be represented by various physical manifestations, such as pushes, pulls, or impacts.

According to Newton's laws of motion, force is directly related to an object's acceleration. When an unbalanced force acts on an object, it causes a change in its velocity, either by accelerating or decelerating it. Force is measured in units called newtons (N), and one newton is defined as the force required to accelerate a mass of one kilogram by one meter per second squared.

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Complete Question:

If the man at B exerts a force of P = 30 lb on his rope, determine the magnitude of the force F the man at C must exert to prevent the pole from rotating, i.e., so the resultant moment about A of both forces is zero.

Answer:

The answer is positive.

Explanation:

In a middle of an atom, nucleus, contain neutrons (neutral charge) and protons (positive charge) so it will become positively charge nucleus.

Answer:

I need help on this

Explanation:

The current I in the circuit will be 12A.

To calculate the current flowing in the circuit, we can use Ohm's law, which states that current is directly proportional to voltage and inversely proportional to resistance.

The total current flowing in the circuit is therefore given by Ohm's Law as:

I = V/R

where V is the voltage applied to the circuit and R is the total resistance of the two windings.

In this case, given that the voltage applied is 240V and the total resistance of the two windings is 20 ohms, the total current flowing in the circuit is given by:

I = 240/20 = 12A.

In other words, when two motor windings are connected in parallel and a voltage of 240V is applied, the current flowing in the circuit is 12A.

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Answer: When the worker is on the top rung

Explanation: When the ladder was initially resting on the wall, the torque from the normal reaction on ladder from the horizontal surface is equal to the torque from the vertical surface on ladder.

The weight of the worker produces a torque which is in the direction of the torque from the normal reaction on ladder, produced by the vertical surface. Therefore for the ladder to stay in rotational equilibrium, the torque on ladder from the normal reaction produced by the horizontal surface must increase.

This increase is possible when the worker is on the lower rung, but as the worker goes high, the magnitude of normal reaction from the vertical surface would increase, thereby increasing the risk of slipping of ladder.

The most simplified form of the law of conservation of energy that describes the motion of a block sliding from the top of a table to the bottom of a ramp is:1/2mv^2i + mghi = 1/2mv^2f + mghf

In this equation, the terms represent different forms of energy. Let's break it down:

- 1/2mv^2i represents the initial kinetic energy of the block, where m is the mass of the block and vi is its initial velocity.

- mghi represents the initial potential energy of the block, where m is the mass, g is the acceleration due to gravity, and hi is the initial height of the block.

- 1/2mv^2f represents the final kinetic energy of the block, where vf is its final velocity.

- mghf represents the final potential energy of the block, where hf is the final height of the block.

This equation states that the sum of the initial kinetic energy and the initial potential energy of the block is equal to the sum of its final kinetic energy and final potential energy.

It implies that energy is conserved throughout the motion, with no energy lost or gained, neglecting any non-conservative forces or work done by friction (Wnc).

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The correct ranking in descending order (largest first) of the energies needed for impinging electrons to knock a K-shell electron completely out of an atom in each of these targets is: Platinum, Silver, Copper

To rank the energies needed for impinging electrons to knock a K-shell electron completely out of an atom in each of the given targets, we need to consider the ionization energies of the K-shell electrons for each element. The ionization energy represents the energy required to remove an electron from its respective shell.

The ionization energy generally increases as we move across a period in the periodic table and decreases as we move down a group. Based on the given elements, we can determine their relative ionization energies:

Platinum (Z = 78): Platinum has the highest atomic number among the given elements. Generally, higher atomic number elements have higher ionization energies. Therefore, platinum would require the highest energy to knock out a K-shell electron.

Silver (Z = 47): Silver has an intermediate atomic number. It is expected to have a lower ionization energy compared to platinum but higher than copper.

Copper (Z = 29): Copper has the lowest atomic number among the given elements. It is expected to have the lowest ionization energy among the three.

Therefore, the correct ranking in descending order (largest first) of the energies needed for impinging electrons to knock a K-shell electron completely out of an atom in each of these targets is:

Platinum, Silver, Copper

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Answer:

No

Explanation:

We would not be able to see the star because its radiation is in the UV range. For the star to be visible, it has to be in the visible spectrum of light for me to be able to see it with my eyes.

The proof of third equation of motion is determined as  v² = 2as + u².

The proof of third equation of motion is determined as follows;

The first equation is given as;

v = u + at

t = ( v - u ) /a

where;

The formula for the average distance traveled by an object is;

s = (v + u)/2  x  t

Expand the equation above as;

s = (v + u)/2 x  (v - u)/a

s = (v² - u²) / 2a

2as = v² - u²

v² = 2as + u², proved

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Answer:

Linear

Explanation:

The slope is constant.

Answer:

A. Linear

Explanation:

hope I help you

If the journey is from here to Alpha Centauri, the time elapsed on their journey is 4.3 years

We define a light-year as the distance that the light moves in one year of time.

So, if someplace is at X light-years from here, it means that, at the speed of light, you would need to travel for X years to reach there.

From that, we can conclude that to reach Alpha Centaury traveling at the speed of light you need to travel for 4.3 years. So the time elapsed on the journey is 4.3 years.

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We are asked for the x coordinate of vertex

Here vertex is present somehow at 850-870nm

The most applicible answer should be 860nm

Option C is correct

ρ=2.5⋅g⋅cm3............

Explanation:

ρ=Mass/Volume=5⋅g2⋅cm3,

and thus typically it has the units g⋅mL−1 or g⋅cm−3.

Here, mass=5⋅g, and volume=2⋅m3.

Their quotient is the density as shown. And this could be any solid material (generally solids are denser than liquids). You will have to look up tables of densities for common materials.

A decrease in the price level results in an increase in the quantity of real GDP demanded because a lower price level stimulates consumption, investment, and net exports.

When the price level decreases, it means that the general level of prices for goods and services in the economy has fallen. This can have several effects:

Consumption: With lower prices, consumers can purchase more goods and services for the same amount of money. This increase in purchasing power encourages higher levels of consumption, leading to an increase in the quantity of real GDP demanded.

Investment: Lower prices can also reduce the cost of production for businesses. This can incentivize firms to invest in new projects or expand their existing operations, as they can produce goods and services at a lower cost. Increased investment boosts economic activity and contributes to higher real GDP demand.

Net Exports: A decrease in the price level can make domestic goods and services relatively cheaper compared to foreign goods and services. This can lead to an increase in exports as foreign consumers find the goods more affordable. At the same time, it can discourage imports as domestic consumers may choose cheaper domestic alternatives. This increase in net exports contributes to an overall increase in the quantity of real GDP demanded.

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Answer:

Explanation:

To find the net force on particle q1, we need to calculate the force between each pair of particles and then add them together. The force between two particles is given by Coulomb's law:

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

where F is the force, k is the Coulomb constant (approximately 8.99 x 10^9 N*m^2/C^2), q1 and q2 are the charges of the two particles, and r is the distance between them.

The force between q1 and q2 is:

F = 8.99 x 10^9 N*m^2/C^2 * (8.0 uC * 3.5 uC) / (0.10 m)^2

The force between q2 and q3 is:

F = 8.99 x 10^9 N*m^2/C^2 * (3.5 uC * -2.5 uC) / (0.15 m)^2

The net force on particle q1 is the sum of the two forces, which can be positive, negative or zero, depending on the direction of the force.

It's important to note that this calculation is based on the assumption that the charges are point charges, and that the forces are acting along a straight line. In real-world situations, charges are usually distributed over a certain volume, and the forces acting on the charges can be affected by various factors such as the presence of other charges or conducting materials, which can change the net force.

Answer:

An image of the cosmic microwave background radiation, taken by the European Space Agency (ESA)'s Planck satellite in 2013, shows the small variations across the sky (Image credit: ESA/Planck Collaboration) The cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang, or the time when the universe began

Explanation:

Answer:

2000

Explanation:

workdone=F×D

mg×h

u=0

d=100

a=15

m=2

=2×10×100

=2000

Answer:

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 10 × 9.8 × 5 = 590

We have the final answer as

Hope this helps you

To find the current in the resistor, we can use Ohm's Law and the concept of equivalent resistance. Thus, option A is correct.

First, let's calculate the equivalent resistance of the three cells connected in parallel. When resistors are connected in parallel, the reciprocal of the equivalent resistance is equal to the sum of the reciprocals of the individual resistances:

1/Req = 1/R1 + 1/R2 + 1/R3

Given that R1 = R2 = R3 = 22 Ω (internal resistance of each cell), we can substitute the values:

1/Req = 1/22 + 1/22 + 1/22

1/Req = 3/22

Taking the reciprocal of both sides, we find:

Req = 22/3 Ω

Now we can use Ohm's Law to calculate the current (I) in the resistor. Ohm's Law states that the current flowing through a resistor is equal to the voltage across it divided by its resistance:

I = V/R

Given that V = 1.1 V (emf of each cell) and R = 32 Ω (resistance), we can substitute the values:

I = 1.1/32

Calculating this value, we find:

I ≈ 0.034375 A

Therefore, the current in the resistor is approximately 0.034375 A.

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If the temperature of a gas increases, the pressure of the gas will also increase, provided that the volume and the amount of the gas remain constant.

This is known as Gay-Lussac's law or the pressure-temperature law. The law states that the pressure of a fixed amount of gas is directly proportional to its absolute temperature, assuming that the volume is kept constant.

The reason for this behavior is that when the temperature of a gas increases, the average kinetic energy of its molecules also increases, which causes the molecules to move faster and collide with the walls of the container more frequently and with more force.As a result, the pressure exerted by the gas on the walls of the container also increases.

Conversely, if the temperature of the gas decreases, the pressure will also decrease, assuming that the volume and the amount of the gas remain constant.

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After slowing down by 15 miles per hour and reducing the speed by one third, you are now going at 60 miles per hour.

If you are initially driving at a rate of one and a half miles per minute, it means you are traveling at a speed of 90 miles per hour (since there are 60 minutes in an hour).

In the second step, you slow down by 15 miles per hour. This reduces your speed to 75 miles per hour.

Finally, you reduce your speed by one third, which means you need to subtract one third of 75 from 75. One third of 75 is 25, so subtracting 25 from 75 gives you a speed of 50 miles per hour.

Therefore, after slowing down by 15 miles per hour and then reducing your speed by one third, you are now traveling at a speed of 50 miles per hour.

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The light from Polaris travels through space in the form of electromagnetic energy.

Electromagnetic energy is a type of energy that travels through space in the form of electromagnetic waves. These waves are made up of both electric and magnetic fields that oscillate perpendicular to each other and to the direction of the wave's propagation. Light is one type of electromagnetic wave, and it is emitted by objects like stars, including Polaris, and travels through space until it is absorbed or scattered by other matter. As electromagnetic energy travels through space, it can be affected by various factors, such as the presence of gravitational fields or other types of radiation, which can alter its path or properties.

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Answer:

If the ball is accelerating down through the air with no horizontal motion, the net forces acting on the ball must follow: C. The gravitational force is greater than the drag.

Explanation:

This is because the gravitational force is directed downward and the drag force opposes the direction of motion (therefore the drag force is directed upwards).  Since the ball is accelerating downwards, the gravitational force must be greater than the drag force in order to create this acceleration.

We know that the other options are incorrect because if the net force on the ball was directed upwards, the ball would be accelerating upwards.  If the net force on the ball was zero, the ball would not be accelerating at all.  If the drag was greater than the gravitational force, then the ball would be accelerating upwards as well.

Hope this helps!