70 60 50 20 30 V 30 50 20 V 20 V A C

Q: . Based on the problem below, how far away should one’s face be for thereflected image to be twice…

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Q: Calculate the frequency and wavelength of a photo having an energy of 1.5 eV

A: Given Data : The energy of the photon is given as E = 1.5 eV.

Q: An airplane is cruising at a speed of 257.2 m/s along a straight line and makes a turn along a…

A: Speed, V = 257.2 m/s Centripetal acceleration, ac = 3g = 3×9.8 m/s2 = 29.4 m/s2 Formula for…

Q: A particle travels along a straight line with an acceleration of a = (10 – 0.2s) m/s², where s is…

A:

Q: TRUE OR FALSE 1.) If the system represents a translating rigid body or a series of connected…

A: 1. In a translating body all particles are rigidly bonded. So in between the particles the distance…

Q: Two objects, both with a mass of 1.7 kg are sliding across a horizontal, frictionless surface toward…

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Q: and standing still at a point A. Another point, B, is several meters away and you want to get there.…

A: According to Newton first law of motion that is law of inertia object at rest remains at rest and…

Q: 4. The flywheel of an engine has moment of inertia 2.50 kg.m? about its rotation axis. What constant…

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Q: The blue monochromatic light is used to shine on the Potassium metal surface in the photoelectric…

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Q: Blue monochromatic light is used to shine on the Potassium metal surface in the photoelectric effect…

A: Given : Wavelength of given Blue monochromatic light =  470 nm=470 *10-9 m Work function of…

Q: Four resistors, R1 = 100 N, R2 = 250 N, R3 = 350 n and R4 = 200 N are connected such that the…

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

A: Data provided:  Emf (ε) = 8 V Current (I) = 0.75 A Internal resistance (r) = 1 Ω Asked: The external…

Q: A 2.0 mm diameter iron wire (resistivity, p=9.7x10-8 ohms-m) carries a current of 2.5 A. Determine…

A: Given: The diameter of the wire is 2 mm = 0.002 m.                                    {  here 1 mm =…

Q: An electron has a speed of 0.75c and moves in the opposite direction with respect to the direction…

A: Write the given values with the suitable variables. v=0.75cE=2.5×104 N/Cq=1.6×10-19 C Here, v, E,…

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: 2. The current density in a copper wire of diameter 1.5 mm ig 1.5x 10° A/m2. The number of free…

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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: A horizontal platform 6m in diameter revolves so that a point on its rim moves 6.50m/s. Find its…

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Q: The radius of the

A: Given; Electron at rest are accelerated by a potential of V volt.  These electron have uniform…

Q: stion 12: All the given units are basic units except; Newton (b) Meter (c) kelvin (d) Candle

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Q: (a) As shown in Figure 1, point charge 1 with charge +4q and point charge 2 with charge +q is fixed…

A: Electrostatic force is fundamental force. It depends on 2 charges and distance between them. Force…

Q: A capacitor consists of two 4.1-cm-diameter circular plates separated by 1.0 mm. The plates are…

A: diameter of circular plates of capacitor, D=4.1 cm=4.1×10-2mplate separation, d=1 mm…

Q: Try this one. A tsunami is a sea wave produced by an underwater earthquake. The height of a tsunami…

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Q: 15.32 · Interference of Triangular Pulses. Two triangular wave pulses are traveling toward each…

A: We have to apply superposition principle here

Q: (b) An electric dipole with a separation distance of 0.8 nm consists of charges +3e and -3e. The…

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Q: 2. A 4.0 kg object has a velocity of 3i m/s at one instant. Eight seconds later, its velocity is (8i…

A: given data as per question m = 4kg  u   =  3i

Q: 5. If electric energy costs PHP20/kWh, how much does it cost to use the following appliances per…

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Q: 25. Lito is 172.72 cm tall and weighs 50 000 g. Express his height and weight in meters and…

A: Given Height is given as h=172.72 cm Mass is given as m=50000 g   We have to calculate the height…

Q: A body is projected at an angle of 30° to the horizontal with kinetic energy 40 J. What will be the…

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Q: 27. A piece of carpet is 68.58 cm wide. How many strips of such carpet will it take to cover the…

A: Given: The width of the piece of the carpet is 68.58 cm = 0.6858 m. The width of the roop is 5.5 m.

Q: 3. How much energy is released in a nuclear reaction if 4.37 x 10A-25 kg of mass is converted to…

A: Given data: The mass converted to energy is m=4.37x10-25 kg.

Q: A particle moves along the x-axis so that the position s is given as a function of the time at s(t)…

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

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Q: A spherical shell with a mass of 1.65 kg and a radius of 0.37 m is rolling across the level ground…

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Q: Lightbulb A was found out to give 30.0W of power, producing the same brightness as lightbulb B…

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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: A project by some  Engineering students requires them to monitor the traffic safety at a busy…

A: vg = 55 mph VA = 70 mph

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

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

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Q: 6. Given the information below, how much energy is emitted in the reaction? 23 22.9945 mass of Ne 1…

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Q: Part A The flash unit in a camera uses a special circuit to "step up" the 3.0 V from the batteries…

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Q: A parallel plate capacitor is constructed from two plates of different areas. If this capacitor is…

A: The charge on each plate will always be equal and of opposite polarity.

Q: Should 400 g be 4000 g?

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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…

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Q: A parallel-plate capacitor with plate separation d is connected to a battery that has potential…

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Q: What average net thrust must a17-ton airplane have to reach an altitude of 5,000 ft and a speed of…

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Q: An iceberg (sg = 0.917) floats in the ocean (sg = 1.025). What percent of the volume of the iceberg…

A: Given, Specific gravity of iceberg, SGiceberg = 0.917 specific gravity of ocean, SGocean = 1.025

Q: Two objects with the same mass and radii are to race down an incline, starting from rest. Assuming…

A: We need to comment which body will reach the bottom of incline the fastest.

Q: 21) At rest, how many forces are acting on the slide if it is being pushed forward? Assume all…

A: All surfaces have friction and slide is pushed forward .

Q: Determine the total resistance of the compound circuit

A: Answer:-  Given  Resistance (R1) = 3 ohm  Resistance (R2) = 3 ohm  Resistance (R3) = 10 ohm…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.