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Q: An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an…

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Q: 1. Which of the following quantities are units of momentum? N m kg s/m kg m2/s2 ON S none

A: Required: The units of the momentum

Q: In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 2710…

A: a) "Adiabatically" means no heat is transferred, so there  is no heat flow, here the answer is Zero…

Q: Magnetic poles and electric charges are comparable in terms of their interaction: like poles/charges…

A: Magnets can be created in form of Electromagnets that is a device which creates a magnetic field…

Q: The smaller and larger pistons of a hydraulic press have radius of 0.035 m and 0.0135 m.The input…

A: Th pressure on both side of the piston will be equal to each other.  The pressure is define as force…

Q: Which of the following is a unit for resistivity' A. ohm/meter B. ohm/meter? С. ohт - теter D. ohm -…

A: Introduction :- Here we need to find the unit of resistivity of a material.

Q: A projectile is fired vertically upward with an initial velocity of 64 ft/s from an initial height…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Part 2 A long thin solenoid consists of 20 closely spaced loops of copper, 10.0 cm long with a…

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Q: In a Little League baseball game, the 0.3 kg ball enters the strike zone with a speed of 10.0 m/s…

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Q: figure. At which of the labeled points is the water in the pipe under the greatest pressure? The…

A: According to Bernoulli theorem pressure is inversely proportional to speed but speed is inversely…

Q: Which law is applicable for the take off of the rocket? * Newton’s first law of motion…

A: Option (D) is right  ==> conservation of momentum which is also known as newton's third law of…

Q: Refer to the figure 2. Two electrolytic capacitors are connected in series across a 12-volt supply.…

A: Two capacitors are connected in series connection. So equivalent capacitance of them(Ceq)…

Q: ure: A force of 35 N is applied at a 125° angle to an object while a second force of 60 N is applied…

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Q: buckminsterfullerene, c60, is a large molecule consisting of 60 carbon atoms connected to form a…

A: We have to write expression for Wein’s displacement law

Q: A 5.0 x 102 N object is hung from the end of a wire of cross-sectional area 1x10-6 cm². The wire…

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Q: 7. Two bodies A and B in the figure shown are separated by a spring. Their motion down the incline…

A: Given Two bodies A and B in the figure shown are separated by a spring. Their motion down the…

Q: (Refer to Figure 3) For the parallel circuit given, what is the current flowing thru R2? А. 3.2 А В.…

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Q: At age forty, a man requires contact lenses (f = 65 cm) to read a book held 25 cm from his eyes. At…

A: focal length (f) = 65 cm object distance (d) at age of forty= 25 cm object distance at age of forty…

Q: Which of the following statement is false?   An object is said to be in equilibrium if and only if…

A: An object is said to be in equilibrium if net force (vector sum of all forces) acting on it is zero…

Q: (Refer to Figure 4) Three resistors are connected in series and are being supplied by a 12volt…

A: All the 3 resistors are in series connection. So their equivalent resistance Req=R1+R2+R3=10+5+5=20…

Q: The period of pendulum is measured to be 3s in the inertial frame of the pendulum. What is the…

A: The relativistic factor when measured by the moving observer is 1.60.

Q: A light beam in air has an angle of incidence of 35°at the surface of a glass plate. What are the…

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Q: A 370 µF capacitor in a photoflash is charged to a voltage source of 330 V. How much charge is…

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Q: communicating with an astronaut on the moon, 3.8  108 m from earth, what is the minimum time delay…

A: Spped = distance /time Time = distance /speed

Q: A color television set draws about 2.5 A when connected to a 120-V source. What is the cost (with…

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Q: Young's modulus of iron rod is 21 x 1010 N/m?. A force of 7.0 x 105 N is applied to a 1.5-m length…

A: Given data as per question Young modulus = 21*1010 Force  =    7*105  A    =  0.25

Q: A car travelling along a road is making a turn where the radius of curvature is r = 2t2 m where t is…

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Q: If a body is in equilibrium and a 300 N force is acting on it to the East, what other force must…

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Q: What is the total charge of the entire circuit if it is connected to a 12-V battery? A. 83.76 µC B.…

A: First, we find the total capacitance in the circuit. Then we calculate the total charge in the…

Q: A flywheel is brought from rest up to a speed of 1 500 rpm in one minute. What is the average…

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Q: (Refer to Figure 3) For the parallel circuit given, compute for the dissipated power for R3 . A.…

A: To determine power dissipated across resistance R3 for  the parallel circuit given in the question.

Q: A 2 kg ball moving at 3 m/s collides with a 4 kg that is stationary. If the collision is perfectly…

A: m1 = 2 kg, m2 = 4 kg Speed of m1 before collision, u1 = 3 m/s Speed of m2 before collision, u2 = 0…

Q: Consider two parallel copper plates both 1m² in area. The lower plate is charged with 4uC of charge…

A: Note: According to the company policy, only the first 3 sub-questions are solved here, to get a…

Q: Which of the following statement is false? Angular acceleration of object is zero if it is not…

A: Given, Statements regarding equilibrium and angular acceleration

Q: A green toy car with 0.025-kg mass moves to the right at 0.30 m/s and has a head-on, elastic…

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Q: . Determine the currents I, and la 2 A 7A I. ЗА 4 A

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Q: 37° 10 m A uniform beam of length 10 m and weight 60 N is attached to a wall by a cable as shown in…

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Q: explain why the balloon was attracted to the wall in static electricity activity

A: Given: explain why the balloon was attracted to the wall in static electricity activity

Q: explain what happened to the balloon when it was rubbed on the sweater. what charge was acquired by…

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Q: An incandescent bulb with a tungsten filament is rated at 60W. If placed across a 120 volt supply,…

A: Given, Bulb with tungsten filament is rated at 60W (Power (P)= 60W) Voltage across bulb (V) = 120…

Q: frgme I Suppose, there is an infinite current carrying wire lying along the z-axis as shown in the…

A: The magnetic field at point P1 is            -1.53 x 10-9 T î or -1.53 nTî

Q: A 75 kg person stands on each of the following planets. Rank order her weight on the three planets,…

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Q: A 2 kg object moving at 3 m/s collides with a 4 kg object that is stationary. If the collision is…

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Q: A 1200-kg car moving at 15.6 m/s suddenly collides with a stationary car of mass 1500 kg. If the two…

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Q: When the cells are connected in parallel, then (A The emf increases B The emf decreases C The…

A: If all physical parameters and temperature stay constant, Ohm's law asserts that the voltage across…

Q: Specify two reasons for the difference between measured and expected energies.

A: In this question we have to specify the difference between measured and expected energies. Please…

Q: 100-W light bulb is turned on. It has an operating voltage of 120 V. (a) How much current flows…

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Q: A 10 kg wheel of radius 0.5 m rotates at an angular speed of 10 rad/s. Find the centripetal force (…

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Q: A particle travelling along a straight road abide by the (v-t) graph shown. The initial displacement…

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Q: Which of the following statement is false? A) An object is said to be in equilibrium if and only if…

A: Options A and E: If no resultant force or torque acts on a body, then the body undergoes no change…

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.