I make a scale model of a tower using a scale of 1:300. If the real tower is 120 metres tall, how tall is my scale model in cm? Explain

Q: Given the two charged particles shown in the figure below, find the electric field at the origin.…

A: Solution: Given: k = Coulomb's constant = 8.99 x 109 N.m2/C2  q1 = charge located at (x1, y1) =…

Q: A negative test charge -2nC is placed at point P to measure an electric field. The field is measured…

A: Given test charge  at point P is (q) = -2 nC  Electric field at point P  E = 2000 N/C  ( pointing…

Q: The pendulum consists of 2-lb rod BA and a 6 lb disk. The spring is stretched 0.3 ft when the rod is…

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Q: Find the momentum (in kg. m/s) of a helium nucleus having a mass of 6.68 x 10-27 kg that is moving…

A: Given:-  The mass of the helium nucleus is m = 6.68 x 10-27 kg  The nucleus moves with the velocity…

Q: cramming student warms 0.500 L of cold coffee in a Pyrex carafe. Full carafe of coffee at 20°F. How…

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Q: 9 For the capacitor net- work shown in Fig. E24.29, the potential difference across ab is 220 V.…

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Q: For each of the following sets of quantum numbers, indicate the quantum number with an UNALLOWED…

A: 1.  n = 3 So l have possible values  from 0 to n-1 i.e 0 to 3-1  From 0 to 2  l = 0 ,1 , 2 We have…

Q: Three point charges q1 = 64 mC, q2 = -25 mC and q3 = -4 mC are placed at the vertices of a right…

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Q: The gap between the plates of a parallel-plate capacitor is filled with three equal-thickness layers…

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Q: Black vultures excel at gliding flight; they can move long distances through the air without…

A: Given:The movement of black vulture in horizontal distance is 100 m and the angle is 3.5°.

Q: Find the potential difference between point a and point b for the situation shown below. Here &₁ =…

A: Given data  ε1 = 12.0ε2 = 8.77R1 = 3.93R2 = 5.64R3 = 1.88

Q: John can fly his airplane 2140 miles with a wind speed of 25 mph in the same time he can travel 1940…

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Q: spacecraft was designed to assess the ability of an impact to deflect the path of an asteroid. The…

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Q: An underwater diver discovers a large glass slab on the ocean floor. The actual thickness of the…

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Q: 3 кл ДДДДА. АДАДА. 12kn # Р 5mF

A: Given  C = 5 mF  R1= 3 kΩ  R2= 12 kΩ   Since , R1 and R2  are in parallel . Therefore equivalent…

Q: The figure below shows three capacitors with capacitances CA = 1.00 μF, CB = 1.20 μF, and Cc = 3.30…

A: CA = 1 uf  CB = 1.20 uf  Cc = 3.30 uf  V = 6 V

Q: In a homogeneous electric field, an electron e and a proton p are simultaneously liberated from…

A: This situation can be picturised as shown in figure: Things to be kept in mind: Electric field is…

Q: Two equally charged spheres of mass 1/2 pound are each suspended. one of them by a thread hanging…

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Q: An object is placed a distance do in front of a concave mirror with a radius of curvature r = 6 cm.…

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Q: A particle moves from left to right along the parabola y =x^2 with constant speed 5. Find the…

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Q: A resistor is placed in a circuit with an adjustable voltage source. The voltage across and the…

A: Given data:  Graph between voltage and current Required: The resistance (R)

Q: Solve step by step in digital format 3. A wire makes an angle of 40° with respect to a magnetic…

A: Given:-  The Length of the wire is L = 9 cm  The current in the wire is I = 4 A  The magnetic field…

Q: You have a sample of unknown medication that is radioactive. You believe you should be able to…

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Q: A charged particle with initial speed v, enters a region of uniform electric field set up by the…

A: Given: The speed of the chargeed particle is v. The charged particle attract toward higher…

Q: The equipotential lines in a region of electric field are shown in the diagram below. For each path…

A: given data: q=+2.5x10^-7C V0 = 160V

Q: A car of mass m = 1500 kg accelerates uniformly from rest to 10 m/s in 3.0 s. Calculate the…

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Q: A spaceship moves past Earth with a speed of 0.808c. As it is passing, a person on Earth measures…

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Q: The rate of heat flow in a solid plate depends on geometry of plate, temperature distribution and…

A: Rate of heat flow in a solid plate is depends upon the thermal conductivity, area and temperature…

Q: A point charge, q, is moved from a position 30 cm away from a test charge to a position 15 cm from…

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Q: A proton follows the path shown in the figure as it passes through the three different regions of…

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Q: For an electromagnetic wave the amplitude of the electric field is Eo, and the amplitude of the…

A: Solution: Given: For an electromagnetic wave, the amplitude of electric field is Eo and the…

Q: An object with negative charge is placed in a region of space where the electric field is directed…

A: given data: electriv field of the regionof the space = vertically upward

Q: - A weight-lifter does 4.4 x 10³ J of work in raising a weight from the floor to a height of 2.0…

A: Given  Work (w) = 4.4 × 103 J  Height (h) = 2 m  (a) let average force is ' F ' .   w = F× h…

Q: Bebang stands shoulder deep in the pool and observes that six crests of periodic surface waves pass…

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Q: (a) What is the momentum (in kg · m/s) of a proton moving at 0.716c?  kg · m/s (b) At what speed (in…

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Q: A neutral -meson is a particle that can be created by accelerator beams. If one such particle lives…

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Q: A diffraction grating with n = 3.5E-05 lines/nm is used to separate two colors of light. The angle…

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Q: A resistor made of Nichrome wire is used in an application where its resistance cannot change more…

A: Given data, Change in resistance =1.15% R0 at T0=20° C

Q: QA.18: By what factor is the capacitance of a metal sphere multiplied if its volume is tripled? (a)…

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Q: A small charged particle of mass 1.0 x 10-8 kg is traveling rightward between two plates separated…

A: Solution: Given: Particle travels from left plate to right plate. m = mass of particle = 1.0 x 10-8…

Q: A cannon is mounted on wheels and is at rest. It shoots a 8.8 kg ball with a velocity of 8.9 m/s.…

A: Given: The intial velocity of the system is 0 m/s. The mass of the ball is 8.8 kg. The mass of the…

Q: The interpretation of the Boyle's law is that for two gases at the same pressure and temperature,…

A: Here, it is asked whether the statement " The interpretation of the Boyle's law is that for two…

Q: digital to analog converter (DAC)

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Q: Unpolarized light passes through two Polaroid sheets. The transmission axis of the analyzer makes an…

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Q: A transformer has a primary coil with 450 turns of wire and a secondary coil with 900 turns. An AC…

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Q: A student walks 1.0 mi west and then 1.0 mi north. Afterward, how far is she from her starting…

A: Given : A student walk 1.0 mi west and then 1.0mi north.

Q: Consider a wire of a circular cross-section with a radius of R = 3.07 mm. The magnitude of the…

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Q: A pair of closely spaced platinum discs in a vacuum tube are connected to a DC power supply and an…

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Q: An unknown wire in a circuit has a circular cross-section with diameter 3.8 mm. It carries a current…

A: 1. The density of the charge carriers in a conductor or material is given by n = I /(A*vd*q) Here,…

Q: QA.6: Figure 2 below shows the electric field lines for two charged particles separated by a small…

A: Given data:  The electric field lines for two charged particles q1 and q2 Required: The ratio q1:q2…

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.