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Answer:

JOULE per kelvin

The SI unit of specific HEAT is joule per kelvin and kilogram, J/(K kg). For example, at a TEMPERATURE of 25 °C (the specific heat capacity can vary with the temperature), the heat required to RAISE the temperature of 1 kg of water by 1 K (equivalent to 1 °C) is 4179.

Explanation:

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Answer:

Given:

A particle A of mas of 3mg is balanced by keeping ANOTHER object of B of charge +30nC below it at a depth of 5cm.

To find:

Charge on A in ORDER to balance the object against Gravity.

Calculation:

Object A will be balanced against gravity only when the gravitational force acting on it is equal to the electrostatic force exerted by object B.

\therefore \: F_{g} = F_{E}∴F

g

=F

E

= > mg = \dfrac{k(q1)(q2)}{ {r}^{2} }=>mg=

r

2

k(q1)(q2)

= > 3 \times {10}^{ - 6} \times 10 = \dfrac{k(q1)(30 \times {10}^{ - 9} )}{ {(0.05)}^{2} }=>3×10

−6

×10=

(0.05)

2

k(q1)(30×10

−9

)

= > 3 \times {10}^{ - 5} = \dfrac{k(q1)(30 \times {10}^{ - 9} )}{ {(0.05)}^{2} }=>3×10

−5

=

(0.05)

2

k(q1)(30×10

−9

)

= > 3 \times {10}^{ - 5} = \dfrac{k(q1)(30 \times {10}^{ - 9} )}{ 25 \times {10}^{ - 4} }=>3×10

−5

=

25×10

−4

k(q1)(30×10

−9

)

= > 3 \times {10}^{ - 5} = \dfrac{k(q1)(6 \times {10}^{ - 9} )}{ 5 \times {10}^{ - 4} }=>3×10

−5

=

5×10

−4

k(q1)(6×10

−9

)

= > {10}^{ - 5} = \dfrac{k(q1)(2 \times {10}^{ - 9} )}{ 5 \times {10}^{ - 4} }=>10

−5

=

5×10

−4

k(q1)(2×10

−9

)

= > {10}^{ - 9} = \dfrac{k(q1)(2 \times {10}^{ - 9} )}{ 5 }=>10

−9

=

5

k(q1)(2×10

−9

)

= > 1 = \dfrac{k(q1)(2 )}{ 5 }=>1=

5

k(q1)(2)

= > 1 = \dfrac{9 \times {10}^{9} (q1)(2 )}{ 5 }=>1=

5

9×10

9

(q1)(2)

= > \: q1 = \dfrac{5 \times {10}^{ - 9} }{18}=>q1=

18

5×10

−9

= > \: q1 = 0.27 \times {10}^{ - 9}=>q1=0.27×10

−9

= > \: q1 = 0.27 \: \: nC=>q1=0.27nC

So, final answer:

\boxed{ \SF{ \: q1 = 0.27 \: \: nC }}

q1=0.27nC

Given:-

• Speed of LEO (s) = 15m/s.

• Time taken (t) = 1hour.

To FIND:-

• Distance covered by Leo (d) .

Solution:-

As we know that,

⟹ Distance = Speed × Time

⟹d = s×t

Put the value which is given above we get

⟹ d = 15×1

⟹ d = 15km.

∴ The Distance covered by leo is 15km.

Additional Information !!

✧ The speed of an object that is MOVING is quantity tell us how fast it is moving.

✧ Distance is the product of speed and time.

✧ If the position of an object does not CHANGE as time passes the object is said to be at rest.

✧ If the position of an object change as time passes it is said to be in motion.

✧ SI UNIT of speed is m/s.

Answer:pH and pOH

Equation 11 is correct only at room temperature SINCE changing the temperature will change KW. The pH scale is logarithmic, meaning that an INCREASE or decrease of an integer value changes the concentration by a tenfold. For EXAMPLE, a pH of 3 is ten times more ACIDIC than a pH of 4.

Explanation:

Answer:

50 MS - 1 is this answer

Explanation:

OK

EXPLANATION:

,C, vxfzgdgcjvhdrduhkbyaedobfp

ANSWER:

QUANTITY: Inductance

Symbol: H

Dimensions: ML2T-2I-2

Explanation:

Answer:

Velocity:

Velocity (v) is a vector QUANTITY that measures displacement (or CHANGE in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the DISTANCE traveled (d) over the change in time (Δt), represented by

the equation r = d/Δt.

Formula:

In SCIENCE, a formula is a concise way of expressing INFORMATION symbolically, as in a mathematical formula or a chemical formula. The informal use of the term formula in science refers to the general construct of a relationship between given quantities.

ANSWER:

Write the DIMENSIONS of a and B in the formula v = a+bt , where v is velocity and t is time ? Just dimensions no UNITS. Velocity v is given by v=at2+bt+c, where t is time.

GIVEN:

A charge q is accelerated through a potential difference of V.

To find:

Kinetic ENERGY gained by charge?

Calculation:

In these type of questions, its BEST to apply the concept of mechanical energy conservation.

According to CONSERVATION OF MECHANICAL ENERGY:

• The MAGNITUDE of change in potential energy will be equal to the magnitude of change in the kinetic energy.

So, gain in KE by charge is qV.

EXPLANATION:

Magnets are objects that produce MAGNETIC fields and ATTRACT metals like iron, NICKEL and cobalt

f=mg

1 f=10

2 f=2*10

f=20

therefore 2ND ONE

ANSWER:

The answer is OPTION (d)......

Answer:

So here is your answer ☺️

Explanation:

(a) Electric charge of a body is quantized. This means that only integral (1, 2, …., n) number of ELECTRONS can be transferred from one body to the other. Charges are not transferred in fraction. Hence, a body possesses total charge only in integral multiples of electric charge. (b) In macroscopic or large scale charges, the charges used are huge as compared to the magnitude of electric charge. Hence, quantization of electric charge is of no use on macroscopic scale. Therefore, it is ignored and it is considered that electric charge is continuous

Quantization of charge means that every body has the charge EQUAL to the integral multiple of electrons... It is useless in macroscopic quantities because in that system there are uncountable electrons so quantization can't be dealer in system.

a) It STATES that charge on any body has to be an integral multiple of ELECTRONIC charge. i.e q=(+-)ne where n =no. of e transferred or gain. n has to be an integer=1, 2,3...... b) Quantization of charge is meaningful only at microscopic level,where changes involved are of the order of few tens or hundred of e i.e they can be counted. Such charges appear in discrete lumps and quantization cannot be ignored . At macroscopic level no. of charges are very large and cannot be counted.

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Answer:

So here is your answer

Explanation:

The pressure is force exerted by a body per UNIT area.

P = F/A.

From the above equation we can SEE that the force is inversely proportional to that of the area. We can see by physical example how the pressure exerted by the body depends on the area.

When we walk in HIGH heels the area of the contact of the heels with the surface is very SMALL and hence the pressure exerted will be very high so is the pressure exerted on the body.

Therefore , Smaller Area Of Contact = Higher Pressure Exerted.

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Answer:

sin⁻¹(8/9)

Explanation:

REFRACTIVE INDICES of glass and water are 1.5 = 3/2 and 4/3.

From SNELL's law,

μ₁ sinθ₁ = μ₂ sinθ₂

The critical angle,

θₙ = sin⁻¹(μ₁/μ₂)

    = sin⁻¹(4/3 * 2/3)

    = sin⁻¹(8/9)

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Answer:

1) When you slap your SIBLING.

2) When you kick a ball.

Explanation:

Common examples of newton’s THIRD LAW of motion are: A horse pulls a CART, a person walks on the ground, hammer pushes a nail, magnets attract paper clip. In all these examples a force exerted on one object and that force is exerted by another object.

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EXPLANATION:

Answer. The relationship between LINEAR SPEED and angular velocity is the product of angular velocity(Φ/t) and RADIUS equals to linear speed. ... w is omega(or angular velocity). R is radius of circle

ANSWER:

Explanation:

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Answer:

bulb MAY be fused.

baterry can be completed.

wires may be losely connected

Explanation:

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ANSWER:

it is -ve ACCELERATION or RETARDATION,so ,EXPRESSED in m/s^2

ANSWER:

CANT say

Explanation:

the same..........

Mass of body = 1kg

Velocity of body = 10m/s

We have to find KINETIC ENERGY of body.

✭ Kinetic energy of body of mass m MOVING with velocity V is given by

• KE = 1/2 × mv²

➠ Energy is a scalar quantity having only magnitude.

➠ SI unit : Joule (J)

➠ Dimension formula : [M¹L²T

Let's calculate :D

➝ KE = 1/2 × mv²

➝ KE = 1/2 × 1(10)²

➝ KE = 1/2 × 100

➝ KE = 50J

SOLUTION :

(pressured⇔.)3/2×(DENSITY)−3/2

=(ML−1T−2)3/2×(ML−3)−3/2

=M3/2l−3/2T−3×M−3/2L+9/2

=M0L3T−3=(M0L1T−1)2=υ3

Hence X = 3

ANSWER:

.........................

.

.

........

.

..

Explanation:

Electrons can move by the action of the electric FORCE, or the magnetic force. In the case of the electric FIELD, it is ESTABLISHED, by covenio, that regions around the positive charges are considered high potential, and regions around the negative charges, low potential.

Since electrons are negative they should be repelled by the negative CHARGE and attracted by the positive charge, that is, in an electric field the electrons must move from regions of low potential to the regions with high potential by the action of the electrical forces.

In a battery, the chemical process separates the positive and negative charges so that a concentration of positive charges on the positive pole and a concentration of negative charges in the negative occurs. When the battery is connected to a circuit, an electric field is created inside the wires and electrons (the only ones that can move in metals) are repelled from the negative pole (region of low potential) and attracted by the positive (region of high potential).

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Answer:

ACCORDING to Ohms Law (I=E/R or Amps=Volts/Ohms) if the voltage in the CIRCUIT remains constant and the RESISTANCE is increased, the current should decrease. Try adding resistance to the circuit to lower the current output.

Explanation:

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ANSWER:I THINK answer is OPTION C positrons

Explanation:

Answer:

Equations of motion relate the displacement of an object with its velocity, acceleration and TIME. The motion of an object can follow many different paths. Here we will FOCUS on motion in a STRAIGHT line (one dimension).

Explanation:

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Explanation:

Time of FLIGHT of a Projectile - diagram

Therefore, time of flight =Tf=2tm−2(vosinθo)/g because of SYMMETRY of the PARABOLIC PATH.

OPTION A..... For SURE

Answer:

physics is the study of nature. Physics sets out to understand the PROCESSES, forces and structures of nature. One of its major characteristics is its ability to describe apparently disconnected and complex phenomena in terms of an underlying SIMPLICITY of MATHEMATICALLY expressed principles and structures.

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F=ma

F=20×10^-3×30 =0.6N

ANSWER:

True

Explanation:

Ddgggggvhh8e8w8q8q8q8w8288rf8fhg

ANSWER:

object should be PLACED behind the MIRROR to FORM a IMAGE of m=+4

ANSWER:

EXPLANATION:

OPTION NUMBER 4

ANSWER:

BIBLE was WRITTEN by thaveed is the CORRECT answer

Hi friends here your answer

given DATA :-

mass of bullet = 20÷ 1000

= 2× 10-^2

velocity U1 = 300 m/s

mass of wooden block = 880÷1000

= 0.88 kg

now

law of momentum conservation

momentum before collision = momentum after collision

mu1 + mu2 = mv1 +mv2

0.02 × 300 + 0 = v ( m1 + m2)

6 = v ( 0.02 + 0.88)

6 = v × 0.9

v = 60 /9

v = 6.66 m/s

The objective of cleaning and sanitizing food contact surfaces is to remove food (nutrients) that bacteria need to GROW, and to KILL those bacteria that are present. It is important that the CLEAN, sanitized equipment and surfaces drain dry and are STORED dry so as to prevent bacteria growth.

Current is the RATE at which electric charge flows past a point in a circuit. In other WORDS, current is the rate of flow of electric charge. Voltage, also CALLED electromotive FORCE, is the potential difference in charge between two points in an electrical field. ... Voltage is the CAUSE and current is its effect.Explanation:

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Answer:

We GET INFINITE only.

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ANSWER:

I do not KNOW!!!!!!!!!!!!!!!!!!!!!

ANSWER:

POSITRON

EXPLANATION:

because it is CHARGED PARTICLE

Answer:

Videos

Video RESULT for what is the value of current in the ac circuit R=10 ohm C=50 muF in series across 200V, 50Hz5:02

A series LCR circuit is CONNECTED to an ac SOURCE 200 V, 50 Hz.

Doubtnut

Jun 3, 2019

Video result for what is the value of current in the ac circuit R=10 ohm C=50 muF in series across 200V, 50Hz1:15

In a series LCR circuit with an AC source, R = 300 Omega, C = 2

Doubtnut

May 2, 2019

Explanation:

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A Galilean TELESCOPE is DEFINED as having one CONVEX lens and one CONCAVE lens. The concave lens serves as the ocular lens, or the eyepiece, while the convex lens serves as the objective.

ANSWER:

HELLO dear friend here's your answer....

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Answer:

HELLO

Explanation:

STEAM ENGINE RUNS WITH THE HELP OF HEAT ENERGY GENERATED BY THE COALS. THE HEAT ENERGY IS CONVERTED INTO MECHANICAL ENERGY IN ORDER TO RUN IT.

IN NUCLAER REACTOR, THE POWER IS GENERATED BY NUCLAER FISSION OR FUSSION.

RADIO AND TELEVISION ARE BASED ON GENERATION, PROPAGATION AND DETECTION OF ELECTROMAGNETIC WAVES.

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ANSWER:

CONTACT force is the answer

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NORMAL FORCE is EQUAL to CENTRIPETAL Force

Ma=Mv²/R

√ag=v

Answer:

ANSWER

Let the distance between the ship and the enemy SUBMARINE beS.

Speed of sound in WATER =1450m/s

TIME lag between transmission and reception of Sonar waves =77s

In this time lag, sound waves travel a distance which is TWICE the distance between the ship and the submarine (2S).

Time taken for the sound to reach the submarine =

2

1

×77=38.5s

Distance between the ship and the submarine, S=1450×38.5=55825m=55.8km

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