It is estimated that the mass of the earth is 5.98 x 10^24kg, its mean radius is 6.38 x 10^6m. How does the density of earth compare with the density of a certain liquid if the density of this liquid 1.2 times the standard density of water?

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: Calculate the speed of a satellite in orbit 9.5 × 103 km above Jupiter. (rJ = 7.18 × 107 m, MJ =…

A: Given Data:- Mass of Jupiter is MJ=1.90×1027 kg Radius of the Jupiter is rJ=7.18×107 m The satellite…

Q: The gap between electrodes in a spark plug is 0.060cm. Producing an electric spark in a gasoline-air…

A: Solution

Q: Joyce was practicing a shot but she decided to try to throw the ball that has a mass of 5kg with an…

A: Write the given values with the suitable variables. m=5 kgu=12 m/sθ=40° Here, m is the mass, u is…

Q: Which of the following is false? O The resistance of a conductor has a dependence on the…

A: The resistance of a conductor depends upon the resistivity, length and cross-sectional area of the…

Q: Two waves traveling in opposite directions result in a standing wave. If the function of each (4Cm)…

A: Displacement of individual wave particle (A) = 4cm

Q: A 0.5 A current pass through the 500 turns, 40 cm long solenoid. Calculate the magnetizing force…

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Q: (a) 125 Joule (b) Question If a motor has a power of 3 W, how much work is done in 10 minutes? 46:…

A:

Q: point moves in a straight line with simple harmonic motion. When it is 500mm to the right of the…

A:

Q: A car whose wheels are 30 cm in radius is travelling with a constant velocity of 110 kph. If it is…

A: Given: The initial velocity of the car is 110 kph. The radius of the wheel is 30 cm = 0.3 m. The…

Q: A candle 10 cm high is placed 25 cm in front of a plane mirror. Draw a ray diagram to show how the…

A: Given data: The height of candle is h=10 cm. The distance of candle from mirror is u=25 cm.

Q: 3) Consider an object sends into projectile from ground level with initial velocity of vo and 0…

A: Solution: To derive the equation of projectile motion if the initial velocity and angle of launch is…

Q: How much energy in joules is required to move a charge of 12 mC through a difference in potential of…

A:

Q: A circular steel wire 2.00 m long must stretch no more than 0.25 cm when a tensile force of 400 N…

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Q: Consider a beam of electrons that moves from the electron gun towards the screen of a cathode ray…

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Q: Show the proccES in deriuing V2f tor moving target involuing elustic colligon.

A: We need to derive the equation for final velocity of the target in an elastic collision.

Q: the strength of the camera lens is 75 D, what is the radius of curvature of the lens in mm?

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Q: A spring has a natural length of 10 cm. If 10 dynes of force are required to hold, it stretched ½…

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Q: The crate has a weight of 550 Ib. Determine the force in each supporting cable. B 30 D

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Q: The magnetic force experienced by a 10nC as it passes straight through a B-field of 30mT is found to…

A:

Q: Question The potential energy of a person is 980 Joule who climbs a flight with stairs 10 m high at…

A: Solution:

Q: A mug 3cm in height is placed 12cm in front of a mirror. An upright image is 9cm tall is produced.…

A: Given data-          height of the object (O) = 3 cm         distance of the object from the mirror…

Q: 9 H the mass of the products in a fission reaction is 3.2 x 10^28 kg less than the reactants, how…

A:

Q: An independent and constant current source is supplying 0.6 ampere to a uniform copper conductor…

A: rinner = 7mm router = 10mm I  = 0.6A Resistivity = 2.4*10-8ohm electron per cubic meter = 6.4*1024…

Q: Two objects separated by a distance rare each carrying a charge - q. The magnitude of the force…

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Q: One end of a spring is attached to a solid wall while the other end just reaches to the edge of a…

A:

Q: A flywheel revolving 400r/min slows down with a deceleration of 4rad/s2 .   a) How long will it…

A: Given: The intial angular speed is 400 rev/min. The angular deacceleration of the wheel is 4 rad/s2.…

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: A wave of wavelength 0.45m travels down a 250m-long wire whose total mass is 20kg. If the wire is…

A:

Q: Given a converging lens with a focal length equivalent to 10.0 cm. (a) If an object is placed 30.0…

A:

Q: 2. The conducting rod shown in the accompanying figure moves along parallel metal rails that are…

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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: 4.16- The following coplanar forces pull on a ring 200N at 30.0°, 500N at 80.0degrees 300N at 240°,…

A:

Q: 6. How many positions can a lightning rod erected at a point'occupy with- out being vertical? How…

A:

Q: A stone was accidentally dropped from the top of a building 56 m high. After 0.38 s, another stone…

A: Given : Initial velocity of first stone u1=0 Height of the building (h) = 56 m Time difference…

Q: 2. A steel wire having cross-sectional area 1 mm' is stretched by 10 N. Find the lateral strain…

A:

Q: • A lens 4.50 cm thịck has an index of 1.720 and radii r, = -6.0 cm and r, = cm. If the second…

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Q: A 4 cm object is placed 8 cm away from a converging lens with a focal length of 6 cm. a.Calculate…

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Q: Consider a conductor with circular cross-section. While keeping other parameters the same, doubling…

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Q: 10. The wave equation for electromagnetic waves in frame S is given by a²E(x,t) 1 a²E(x,t) = 0. Use…

A:

Q: Prove that the distance traveled by a body falling freely during n second of its motion is equal to…

A: First we find the displacement in nth second and then we find the displacement in (n-1)th second…

Q: A circular hole 2.5 cm in diameter was cut from the center of a steel disc 7.5 cm in diameter. Find…

A: Given:dh=2.5 cmdd=7.5 cm∆T=10°Cα for steel=11×10-6/°C

Q: Based on the same question, (Blue monochromatic light is used to shine on the Potassium metal…

A: The energy of blue monochromatic light is 2.645 eV. a) Write the expression for the kinetic energy…

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: A rectangular brass plate has a dimension of 50 cm x 30 cm at 10oC. At what temperature should it be…

A: Solution: Given that rectangular brass plate has a dimension of 50 cm x 30 cm T1 = 10 C increase its…

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

A:

Q: A beam of protons is moving from the back to the front of the room. It is deflected upward by a…

A:

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

A:

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

A: Solution: Given that diameter =  2mm resistivity = 9.7x10-8 ohm m current = 2.5 A length = 20 m to…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.