Please answer the following question

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In the given figure, the resistors are joined in parallel connection.

Let's solve for total resistance [tex]R_t[/tex] :

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Answer:

pressure = force/area

force = 200N

area = πr², π =3.142, r = 12 cm = 0.12 m

pressure = 200/3.142×(0.12)²

p = 200/3.142×0.24

p = 200/0.754

p = 265.25 Nm-¹ or 265.25 Pa

Explanation:

convex mirror and concave lens

Answer:

1.6 An iron is supplied with a current of 3 A from the mains. The resistance of the iron is 100 Ω. Calculate the power of the iron. [2

Answer:

According to Lorentz transformation, the time observed of by objects moving in different reference frames are related to their velocity of motion and the speed of light

The time measured by Sarah who is located at the source of the signal and the center of the explosion is different from the time measured by Adam who is moving relative to Sarah and observes the signals moving at different speeds and therefore observes the buildings blow up not immediately but at different times

Explanation:

The time and space dilation equations are given as follows;

[tex]\Delta t = \dfrac{\Delta t'}{\sqrt{1 - \dfrac{v^2}{c^2} } }[/tex]

[tex]L = L' \times \sqrt{1 - \dfrac{v^2}{c^2} }[/tex]

Where;

Δt' = The time measured by Adam

Δt = The time measured by Sarah

L' = The distance measured by Adam

L= The distance measured by Sarah

v = The velocity at which Adam is moving

Let 'u' represent the speed of the signals

Given that Adam is traveling in between the two clock towers such that one signal is moving in the opposite direction towards him while the other signal moves in the his direction, by relativistic velocity addition, we have;

The velocity with which Adam observes the signal coming towards him, v' is given as follows;

v'' = (v + u)/(1 + v·u/c²)

∴ v'' > v

For the signal moving in the direction of Adam, we have;

v''' = (v - u)/(1 - v·u/c²)

v''' < v

Therefore, we have;

The time it takes the light to reach Adam from the furthest Tower which he passes as he is flies past Sarah in the middle, Δt'' is given as follows;

[tex]\Delta t'' = {\Delta t'} \times {\sqrt{1 - \dfrac{v''^2}{c^2} } }[/tex]

For the closer tower which Adam approaches, we have;

[tex]\Delta t''' = {\Delta t'} \times {\sqrt{1 - \dfrac{v'''^2}{c^2} } }[/tex]

Given that v'' > v''', therefore Δt'' < Δt''' and the time the light from the furthest building is seen first by Adam before the light from the closer building.

Answer:

Voltage = 10.54545

Given -

Current (I) - 11

Amps - 11

Resistance - 0.95868

Power - 116

We can conclude:

The voltage will be 10.54545, because of Ohm's Law:

Ohm's law states that:

Voltage (V) = Current (I) * Resistance (R)

Power (P) = Voltage (V) * Current (I)

Answer:

it's yellowish orange (3)

Explanation:

A grapefruit has a pH of somewhere between 2.9-3.3 and it is quite acidic. The juice of a grapefruit can cause erosion of tooth enamel and cause damage to one's teeth if ate excessively

Force ,F = 50 N

Area on which force act ,A = 0.00002 m²

Pressure is exerted on the head of nail,P

We have to calculate the pressure exerted on the head of a nail when force of 50 N is applied on nail and the area of contact with nail is 0.00002 m².

As we know that Pressure is calculated by the force acting per unit area.

where,

P denote pressure

A denote area on which the force acted

F denote force

Substitute the value we get

⟹ P = 50/0.00002

⟹ P = 50×100000/2

⟹ P = 25×100000

⟹ P = 2500000 Pa

Hence, the pressure exerted on the tip of the nail is 2500000 Pascal or 2500 KiloPascal.

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We know that

[tex]\boxed{\bold{P = \dfrac{F}{A}}}[/tex]

where

According to the question,

Answer:

1.5

Explanation:

heating of anything increases the kinetic energy of its molecules, so the molecules will move faster.

A helium balloon's temperature is raised by 1°C. This will cause molecules to move faster.

The temperature has an impact on this average kinetic (motional) energy. Their average kinetic energy likewise rises when gas molecules warm up.

As a result, they travel more quickly and collide more frequently and violently inside the balloon. The temperature has an impact on the hot air balloon's internal pressure. The molecules move more quickly and forcefully against the interior wall of the balloon as they warm up.

A region of the balloon is subjected to more force due to the gas particles' greater velocity, which raises the pressure there.

Therefore, the temperature of a helium balloon is increased by 1°C. Molecules will move more quickly as a result.

To learn more about temperature, refer to the link:

https://brainly.com/question/1457043

#SPJ2

Answer:

The correct answer is - radiant.

Explanation:

Electromagnetic waves are the transverse waves that get energy as radiation from the source and transfer to an absorber so, the radiant energy is the energy of electromagnetic waves.

Electromagnetic waves are can travel in space unlike mechanical waves and are made up of photons, tiny packets of energy. Electromagnetic waves or spectra include radio waves, infrared, light, microwaves, UV, X-rays, and gamma rays.

Answer: B

Explanation:

Answer:

27[tex]cm^{3}[/tex]

Explanation:

The formula to find the volume of a cube is Volume=height cubed(or to the power of 3) so you would replace height with 3cm and get the equation Volume= 3 to the power of 3. So 3 x 3 x 3 = 27. So your answer would be:

27[tex]cm^{3}[/tex]

Answer:

A). The faster an object moves, the more stretched time becomes.    

Explanation:

'Time dilation' is described as the 'slowing of the passage of time experienced by objects in motion relative to an observer that is measurable only at the relative speeds.' As per this particular relativity theory, the observer witnesses an elongated time with reference to the other setting. This reduction in speed of time(slowing down) becomes more clear and evident in the case of an object moving briskly near to the light's speed. Thus, option A is the correct answer.

Answer:

Explanation:

1- incident ray

2- the substance through which the wave travels

Answer: the incident ray(the incident ray is the ray striking the mirror at the point of incidence while the refracted ray is the ray leaving the mirror)

The substance through which the ray or wave travels.

Answer:

A thermo flask has a cork which prevents heat loss by conduction.

It also has vacuum which prevents heat loss by convection.

Answer: 29828 watts

Explanation: hope that helped bro

Ang pandamdam ay nagpapahayag ng matinding damdamin.

hope this helps!

please give me brainliest.

thank you!

Answer: Hope This Helps!

Explanation:

1: Newton’s first law of motion can explain how a magician pulls a tablecloth from underneath the dishes. A negligible horizontal force is applied during the process. As per Newton’s first law of motion, the dishes and glasses remain in their state of motion (rest); as a result, they remain undisturbed.

2: Newton's First Law of Motion is defined as "An object at rest and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force."In soccer, when the soccer ball is in the soccer field and it is not moving, that means that it is at rest and there is no force acting upon it. When there is a person that is ready to play soccer and wants to kick the ball and play, then the unbalanced force would be the power from the person's foot.

3: Newtons third law can explain, as the cannonball is pushed forwards by the expanding high-pressure gases created by the exploding gunpowder, it pushes back on these gases. The gases push back on the cannon itself, causing it to roll backwards. Alternative answer: the cannon pushes forward on the cannonball. the reaction force is the cannonball pushing backwards on the cannon.

Since Newton's laws dictate that the center in mass of every system of material points would travel along a straight line in the absence of external powers. The body will turn and rotate in almost any direction if there is an external field of forces.

Answer:

gas

Explanation:

Solids are compact together, liquida arent compact but are still close, and gases are free roaming and may be very far apart from eachother.

Answer:

The Answer is Gas.

Explanation:

Answer:

current is equal to V/R

Explanation:

I = 9/1000A

[tex]9 \times 10 ^{ - 3} [/tex]

Answer:

C

Explanation:

Answer:

c

Explanation:

edge

Answer:

A

Explanation:

It did not solve the problem.

Answer:

Climate change, where there is an increase in the average temperature, due to continuous human activities. These activities increase greenhouse gases in the atmosphere.

Explanation:

Alaska is the largest state in the United States, and it has a cold climate. The climate changed over time as human activities such as coal mining contributed to greenhouse gas emissions leading to global warming. Over the years. the variations in weather leading to climate change melt the permafrost (frozen ground below the soil surface) causing ocean waves to erode the land and destroy property.

a). Gravity does change across the surface of the Earth and throughout its atmosphere, due to several effects. First, there is the variation of gravity with latitude that you alluded to: you weigh about 0.5% more at the poles than on the equator. ... Second, gravity does indeed change with altitude.

b). That's because the planets weigh different amounts, and therefore the force of gravity is different from planet to planet. For example, if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. That's because Mercury weighs less than Earth, and therefore its gravity would pull less on your body.