In May 20, 2019, the definition of kilogram was changed from the definition in terms of Pt:lr cylinder of the International Prototype of the Kilogram to the definition in terms of the three fundamental physical constants. Which of does not define it? (A) Planck constant (B) Acceleration due to gravity  (C) Speed of light in vacuum (D) Specific atomic transition frequency of Cesium (E) None of these

Q: A PROBLEMS 6.63, 6.64 6.64 This "double" nozzle discharges water (at 10°C) into the atmosphere at a…

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Q: Mass of a body is 4. 8 kg, What is it's weight ?

A: Weight is defined as the gravitational pull on a body by the planet. Given: Mass, m=4.8 kg.…

Q: Given two charges: q1=–60nC and q2=+40nC are separated by 100 mm in an environment of relative…

A: Given data: The two charges are, q1=-60 nCq2=+40 nC The distance between the charges are, d=100 mm.…

Q: The area of the skin of an adult human being is about 2.10m^2. If the temperature of the skin of an…

A: Solution: Given that A = 2.1 m2 T0 = 26 C T=36

Q: 26. Mr. Labrador needs an extra rectangular table in his office. He has one made with a surface 0.38…

A: Write the given values with the suitable variables. A=0.38 m2l=76.2 cm=0.762 m Here, A is the area…

Q: An object is thrown horizontally from the top of a 14-m building and lands 60 m from the base of the…

A: height of building (h) = 14 m distance in horizontal direction (d) = 60 m

Q: spring has a natural length of 15 inches. A force of 10 lbs. is required to keep it stretched 5…

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Q: A charge A of +250 StatC is placed on a line between two charges B of +50 StatC and C of -300 StatC.…

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Q: A 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10-8 N-m) carries a current of 2.5 A. Determine…

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Q: A set of light bulbs connected in parallel consist of twenty five 650 ohms bulbs and connected to a…

A: Write the given values with the suitable variables. n=25R=650 ΩV=90 V Here, n is the number of…

Q: Duestion 5: The correct relationship between the kinetic energy (K) and momentum (P) is ...... a)…

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Q: magnetic induction at the centre of the

A: Given; Acc. to given figure;  Infinity long straight conductor is bent into shape. It carries a…

Q: 30) Why is water not used in a barometer?: * OA) Because its density is greater than that of…

A: The correct option is (C) Because water height at the same temperature would be much higher.

Q: (b) It was measured that the electric field at point P with magnitude 450 N/C just outside the outer…

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Q: Force on the conductor B

A: Given; If the wire A is infinetely long and the length of wire B is 2 m.Where,  Two parallel wires A…

Q: A  2.0 mm diameter iron wire ( resistivity, ρ = 9.7 x 10–8 Ω-m) carries a current of 2.5 A.…

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Q: Ten cells, each with an internal resistance of 0.20 ohms and an e.m.f. of 4.5 V are connected (a) in…

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Q: A potential difference of 24 V exists between two points in a circuit. What is the work done on a…

A: Given:- Potential difference between two points of the circuit is ∆V=24V Charge is q=1 C…

Q: Krypton-79 has a half-life of 35 h. How many half-lives have passed after 105 h?

A: Krypton-79 has a half-life of 35 h. How many half-lives have passed after 105 h?

Q: A car rounds a 40 m radius curve at 26 m/s. The magnitude of it's acceleration in m/s?

A: Given in question -  Radius(r) = 40 m                                   Speed(v) = 26 m/s To find -…

Q: The magnetic field inside a 100-turn solenoid 2 cm long that carries a 10-A current is (let μ=1.257…

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Q: The tires of a go-kart are 1 m in circumference. The tires revolve 15 times per second. What is the…

A: Circumference, C = 1 m Number of revolution in one second, n = 15  Time, t = 40 sec Distance, d = ?

Q: A current of 4 A flows from M(1, 0, 4) to N (3, 0, 4) in a straight, solid conductor in free space.…

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Q: An electric device connected to 220 v draws a current of 4.55 A. It is operated 8 hours a day. If…

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Q: An object has a mass of 0.5 kg is placed in front of a compressed spring. When the spring was…

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Q: Question Two masses are suspended by a cord as shown in the figure below. If mi 5 kg, and m2 -15 kg.…

A: Please note : As per answering guideline I can answer the first question only. Since, this is not a…

Q: A force of 50 N is required to stretch a spring 10 cm beyond its natural length. How much work will…

A: Given, Force=50N Spring length=10cm=10×10^-2=0.1m

Q: 30. A metal block which measures 25 cm x 10 cm x 0.05 m has a mass of 13.5 kg. Find its density in…

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Q: A standing wave is created in a string stretched between two fixed ends 1.65m apart. when the string…

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Q: what distance will

A: Given;  A body slowly noving at platform with a speed of;   v=4 m/sCoefficient of friction is=0.2…

Q: A 50.0-kg object moving at 11.2 m/s transferred 1539 J of energy as work to another object. What is…

A: Given: The mass of the object is 50 kg. The initial velocity of the object is 11.2 m/s. The work…

Q: Ф (Wb) 4.0 2.0 20 30 40 - t (s) -2.0 -4.0- A. What is the magnitude of the induced current at t=5…

A: Current induced is induced emf upon resistance So induced current depends on induced emf.…

Q: In figure below, R1 = 100 ohms, R2 = 50 ohms, and the ideal batteries have emfs, V1 = 6.0, V2 = 5.0…

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Q: A 10-ohm resistor has a constant current. If 1,200 C of charge flow through it in 4 minutes what is…

A: Given data:  Charge (q) = 1200 C Time (t) = 4 minutes Required: Current (I)

Q: Create a problem and solve it in your own. Kindly use the combinations below: COMBO B Problem1:…

A: Projectile motion Projectile motion is a form of motion experienced by an object or particle that is…

Q: A coherent light is used to illuminate two slits separated by a distance d = 2.1x 10-4 m, see Figure…

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Q: If the energy received by 6 m² area in 500 seconds is 4530 KJ. Calculate the value of Solar constant…

A: Given data :             Time     =     t            Area      =      A          Energy   =     E…

Q: Two particles are created in a high-energy accelerator and moves off in opposite directions. The…

A: Write the expression for the speed of the second particle.

Q: A battery is supplying electrical power to a single resistor R. If the total current in the circuit…

A: Given data:  Current (I) = 0.75 A External resistance = R Battery Emf (ε) = 8 V Internal resistance…

Q: Two 7.0 cm x 7.0 cm metal electrodes are spaced 1.0 mm apart and connected by wires to the terminals…

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Q: Question The magitude of the net force acting on the object in the figure is.. 38 FF3N F 4N (a) 5 N…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: When light travels obliquely from air (n=1.00) to glass ( n=1.50), the refracted light A. Bends…

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Q: Half of the volume of an object that weighs 100 N is submerged in water when allowed to float…

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Q: . 28. A fuse for one line in your home's electrical system melts if more than 30 A of current flows.…

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Q: A 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10 8 0-m) carries a current of 2.5 A. Determine…

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Q: When 20 N of force is applied to a spring of natural length 2 m, the resulting compression is 0.5 m.…

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Q: Rank in order the potential differences (AVC)1 to (AVc)4 of the four capacitors in (Figure 1). Rank…

A: Given data - Here are given four capacitors with different different charge and capacitance. We find…

Q: kindly answer this immediately thankyou -An automobile has a speed of 60 mi/h. When the brakes are…

A: An automobile has a speed of 60 mi/h. When the brakes are applied, it slows to 15 mi/h in 4 second.…

Q: Find the work done Force%3D2.24 N displacement=2 m

A: Given data : Force=F Displacement=d   Required : Work done

Q: 1. Determine the resistance of a 1609-meter length of 12-gauge copper wire. Given: length = 1609…

A: Given value--- length = 1609 m. diameter = 0.002117 m. resistivity = 1.7 × 10-8 ohm m . We have to…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.