11) A heat engine receives 7000 J of heat and loses 3000 J in each cycle. What is the efficiency of this engine? B) 70% C) 43% D) 30% A) 57%

Q: Complete the graphical method corresponding to the information provided

A:

Q: Section 3: Type II Projectiles 3A. Ted swings and hits a baseball, which leaves his bat with an…

A:

Q: (I) The rectangular loop in Fig. 21-58 is being pushed to the right, where the magnetic field points…

A: We have to follow the Lenz's law of Electromagnetic induction to answer this question.

Q: 18) Two protons are fired toward each other in a particle accelerator, with only the electrostatic…

A: As two protons are fired towards each other there would be repulsion between them due to the…

Q: Bridging Problem: Calculating Electric Field: Half a Ring of Charge Positive charge Q is uniformly…

A:

Q: 18) Two isolated copper plates, each of area 0.40 m², carry opposite charges of magnitude 7.08 x…

A: The correct answer is option B Potential difference = 8 V

Q: 4. In 1896 in Waco, Texas, William Crush parked two locomotives at opposite ends of a 6.4-km-long…

A:

Q: How many electrons are necessary to produce 1.0 C of negative charge? (e=1.60 x 10-19 C) A) 6.3 x…

A: We know thatQ=neWhereQ=chargen=number of electronse=charge of electron

Q: illustrate charging by conduction and induction. Describe your materials and how the demonstration…

A: Electric charge are of two types: Positive and negative, commonly carried by charge carriers protons…

Q: 18) A bar magnet is pushed through a coil of wire of cross-sectional area 0.020 m² as shown in the…

A: Given : Area (A) = 0.020 m2 Number of turns (N) = 7 Rate of change of strength of magnetic field :…

Q: For the following impedance network, determine the magnitude of the equivalent impedance, in Q. Z1 =…

A:

Q: 12) A bar magnet is oriented above a copper ring, as shown in the figure. The magnet is dropped and…

A: According to lenz's law Induced emf always opposes the cause by which it is produced.

Q: 4. At time t- 0, a wire circular loop of radius R is horizontal in a constant uniform magnetic…

A: Given, A circular loop is rotating in magnetic field with constant angular speed

Q: 16) Two electrons are 20.0 mm apart at closest approach. What is the magnitude of the maximum…

A: Given that, Distance between electron (r) = 20 mm = 0.02 m charge of electron (q )= 1.6 x 10-19 C k…

Q: 5. (II) A falling rock has kinetic energy KE just before striking the ground and coming to rest.…

A: A falling particle is striking the ground and coming to rest, it is required to calculate the total…

Q: 12) A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral…

A: Solution :- Given that, A plastic rod is charged up by rubbing a wool cloth, and brought to an…

Q: (II) A falling rock has kinetic energy KE just before striking the ground and coming to rest. What…

A:

Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

A: Given data :                    Original length (L0) =  17.400 cm                   Initial…

Q: The figure at the right shows two charges that are held in place. There is always more charge on q1…

A:

Q: •• A 2.85-kg bucket is attached to a rope wrapped around a disk- shaped pulley of radius 0.121 m and…

A: This problem is about rotational motion and gravity, and it can be solved by understanding the…

Q: You are spending the summer interning as a technical advisor for the writers of a gangster movie…

A: constant velocity of bonie (v) = 108 km/hr acceleration of police car (a) = 2 m/s2Initial velocity…

Q: 4. At time t= 0, a wire circular loop of radius R is horizontal in a constant uniform magnetic…

A:

Q: 24) When the current through a resistor is increased by a factor of 4, the power dissipated by the…

A: Say we have a circuit with a power source of voltage V and a resistor of resistance R through which…

Q: 11) As a proton moves in a direction perpendicular to the electric field lines A) it is moving from…

A: Given  Proton moves direction perpendicular to the electric field .  Electric potential for moving…

Q: An astronaut is in equilibrium when he is positioned 513 km from the center of asteroid X and 364 km…

A: Given: The given values are, The given r1 value is 513 km. And the given r2 value is 364 km. Find…

Q: 0/1 point You are inside an elevator standing on a scale. You do not know anything about the motio…

A: Newtons third law : for every action there is equal and opposite reaction

Q: 5) The electric field at point P due to a point charge Q a distance R away from P has magnitude E.…

A: Given : Electric field at point P due to a point charge Q , at a distance R away from P has…

Q: 30) A circular coil of copper wire is lying flat on a horizontal table. A bar magnet is held above…

A: As we know Lenz's law states that the direction of induced current in the conductor by changing…

Q: 2) A negatively-charged plastic rod is brought close to (but does not touch) a neutral metal sphere…

A: The correct answer is option A The sphere is now positively charged

Q: 3) Two tiny beads are 25 cm apart with no other charges or fields present. Bead A carries 10 µC of…

A: Option A is the correct answer

Q: When a light wave enters into a medium of different refractive index, A) its speed, frequency, and…

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Q: 12. • When the play button is pressed, a CD accelerates uniformly from rest to 450 rev/min in 3.0…

A: Initial angular speed (ωi) = 0 final angular speed (ωf) = 450 rev/min…

Q: 2) In a single-slit diffraction experiment, the width of the slit through which light passes is…

A: Required effect of reduction of slit width on width of central maximum.

Q: Section 2: Type I Projectiles 2A. While standing atop a 20 meter cliff overlooking a lake Julianna…

A: Given:  Cliff height, h=20 m Julianna's horizontal velocity, vx=2.75 m/s

Q: A rectangular coil, with corners labeled ABCD, has length L and width w. It is placed between the…

A:

Q: 1) As shown in the figure, a bimetallic strip, consisting of metal G on the top and metal H on the…

A: Curved downward ( SO option C is correct)

Q: You are standing on Jupiter's Moon Europa and you have a bowling ball and a soccer ball of the same…

A: Let mass of bowling ball is m & mass of soccer ball is M.

Q: 18) Two protons are fired toward each other in a particle accelerator, with only the electrostatic…

A: Protons are subatomic particles which are having a charge, q=+1.6×10-19C and mass 1.67×10-27 kg. The…

Q: Problem 3: A meteoroid is moving towards a planet. It has mass m = 0.86x10° kg and speed v = 3.5x10'…

A:

Q: 15) The figure shows electric field lines arising from two small charged particles P and Q. Consider…

A: From the Gauss Law for electric field , we can imagine spherical surfaces of same radius on both…

Q: 7) For a beam of light, the direction of polarization is defined as A) the direction that is…

A: Question: For a beam of light, the direction of polarization is defined as_____________________

Q: Coherent light of frequency 6.33x1014 Hz passes through two thin slits and falls on a screen 87.0 cm…

A: Frequency of light is Distance of the screen from slits is Position of the third bright fringe is…

Q: had been constructed. gnoring Earth's rotation, find the change in your weight if you were to ride…

A: We will formula for acceleration due to gravity. Then solve

Q: 17) A flat coil having 40 turns, each one of cross-sectional area 12.0 cm², is oriented with its…

A: Area of cross section (A) =12 Cm2=0.0012 m^2 Number of coil(n) =40 Magnetic field varies from 0T to…

Q: Indicate what happens when light strikes each type of matter listed below: T = transmits straight…

A: a. T (it'll transmit straight through) b. (B) light will refract as it enter in the aquarium water…

Q: 31) In an electromagnetic wave in free space, the electric and magnetic fields are A) parallel to…

A: Electromagnetic wave is the wave that is propagated by simultaneous periodic variations of electric…