You have a spring with a spring constant 3240 N/m. ou want to store 255 J of energy in this spring, should you compress it or stretch it? oice : stretch it. a be done.

Q: A ball is thrown horizontally from the top of a 71.6-m building and lands 147 m from the base of the...

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Q: A positive point charge is placed at F. Complete the following statement: When it is released, A) N...

A: When a positive charge is left free in an electric field then it moves from lower potential to highe...

Q: An x-ray tube used for cancer therapy operates at 4.0 MV, with a beam current of 25 mA striking a me...

A: Write the expression for the power and substitute the required values.

Q: Two identical simple pendulums are released from rest at different times, but from the same initial ...

A: Explanation :- Due to difference in the time of release, the phase angle of the two simple pendulums...

Q: Explain how two objects can be attracted due to an electric force, even when one object has zero net...

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Q: Cadculate the kinetic Joules of a 70kg enesyy in toowesting at 4.26 mls

A: Given that                  Mass (m) = 70Kg                  Traveling (v) = 4.26m/s

Q: A cyclist moves at constant acceleration, passing through two stores that are 70 m apart within 7 s....

A: The relation between speeds and distance travelled is given by v2-u2 = 2as,where v = final velocity,...

Q: R ww a Battery

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

Q: The breakdown voltage can be decreased by increasing the:

A: Zener diode:  VI characteristic for zener diode,

Q: The velocity of electrons will change when they collide with ions, therefore, the probability per un...

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Q: At the surface of any conductor in electrostatic equilibrium, E=o/ɛ0. Show that this equation is con...

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Q: Given the following information, in which medium is the velocity of light the highest? Substance and...

A: Given data:  Index of refraction of Water (nw) = 1.33 Plate glass (npg) = 1.52 Vegetable oil (no) = ...

Q: D. A 3.1 g aluminum foil ball with a charge of +4.6x10-9 C is suspended on a string in a uniform E: ...

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Q: Problem 3: While sliding a couch across a floor, Hannah and Andrea exert forces FH and FA on the cou...

A: Force excreted by Hannah FH =115N Force excreted by Andrea FA =217 N

Q: A man and a parachute are falling with a speed of 173 ft/sec when the parachute opens and the speed ...

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Q: 'The atomic model that is currently used is called: *

A: In this question we have to answer the currently used atomic model. Please give positive feedback if...

Q: How much heat QH does a heat pump with a coefficient of performance of 2.00 deliver when supplied wi...

A: Given,   coefficient of performance = 2.00                                           W = 4.10 kJ    ...

Q: . How are we able to determine the chemical composition and temperature of any visible object? ite o...

A: Answer:-  Spectroscopy is the process which determine the chemical composition and temperature of an...

Q: 4. You have three blocks of different dimensions as follows b,(400mmx250mm), b2(400mmx3000mm), b,(40...

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Q: Calculate the speed of a dog running through a field if he is covering 25.5 meters in 45 second

A: distance covered (d) = 25.5 meters time taken (t) = 45 seconds   

Q: -As a result of change in the magnetic flux linked to the closed loop shown in the figure, an emf V ...

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Q: If an object is moved a distance d compared to something it is rubbing against with a kinetic fricti...

A: Displacement = d Kinetic friction  = fk Work done by a force F for displacement d is W= Fd cosθ Wher...

Q: A uniformly charged insulating sphere with radius r and charge +Q lies at the center of a thin-walle...

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Q: You build a simple pendulum on the Earth and you are given the mission to build an exact replica of ...

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Q: 2î-33 %3D Components, magaitude what is 3 A uhat is 2 A - 36 3? |

A: GivenA→=2 i-3 jB→=-4 i+3j

Q: (a) The 7.00-N and the R = 15.5 Q resistors between points c and d in the figure above are connected...

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Q: The Figure below shows a pair of charged particles held fixed in location on the x-axis, and a point...

A: 1) Since the particles have opposite charges, The charged particle Q1 will attract the charged parti...

Q: You launch a projectile horizontally from a building 42.7 m above the ground at another building 35....

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Q: A magnetic field of magnitude 0.64 T is directed vertically upward. (a) Find the magnetic flux thro...

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Q: A 0.500 kg particle moves in a circle of radius 0.150 m at constant speed. The time for 20 complete ...

A: Radius of the particle is R = 0.150 m  Time taken for 20  complete revolution is 31.7 s .  

Q: Match each plot with its corresponding eccentricity.

A: As the eccentricity increases,the closest and farthest point of the planet to the sun changes and th...

Q: 3. A uniform electric fieldE = 8000 N/C passing through a flat square area A 1o m2. Determine the el...

A: Given data:  Electric field (E) = 8000 N/C Area (A) = 10 m2 Required: Electric flux (Φ)

Q: What is the resultant force on the ring due to the first three weights (magnitude and direction) ana...

A: The force that is produced by the action of gravity on the basic pulley system is given by the equat...

Q: 2.25 Rg Sala (a)). What is the reading on the scale, which is marked in weight units? (b) In Figure ...

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Q: h d Figure 2. The magnitude of the initial velocity of the water is 14.65 directed at an angle 0 = 2...

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Q: A proton is initially moving west at a speed of 1.09  106 m/s in a uniform magnetic field of magnitu...

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Q: Find the direction and magnitude of the minimum velocity of charge q = +2e that will produce the mag...

A: A charged particle experiences a Lorentz force when placed in a magnetic field which is given by the...

Q: A person is standing on the side of a road when a car approaches them at 50 m/s while honking their ...

A: Given data:  The person is standing  Speed of source (vs) = 50 m/s, towards observer  Frequency of h...

Q: Four point charges are fixed to the corners of a square of side d as shown in the figure below, wher...

A: q1 = qq2 = -3qq3 = 5qq4 = 2qq = 6 μC d = 17 cm = 0.17 m   

Q: A piano wire has a linear mass density of u = 4.85 x 10- kg/m. Under what tension must the string be...

A: Given that--- linear charge density = 4.85 * 10-3 kg/m. wave speed = 508 m/s . We have to find--- ...

Q: 6. Find the center of mass of the region in the first quadrant bounded by the r-axis and the graph o...

A: GIVEN f(x) = e-x

Q: How do you describe the frequency in the first harmonic? A. The frequency in the first harmonic is a...

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Q: A slider is attached to an ideal spring and oscillates on a frictionless horizontal track. At a give...

A: The force exerted by the spring when the slider is displaced from the equilibrium position is given ...

Q: Determine the velocity of a cart that is accelerated from rest by a 30.0 N force for 20.0 m. The car...

A: Given data:  Initial velocity (Vi) = 0 m/s Force (F) = 30.0 N Displacement (d) = 20.0 m Mass (m) = 5...

Q: The table below shows information about the various colors of visible light. Calculatethe missing da...

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Q: Suppose the river is flowing east at 3 m/s and the boat is traveling south at 4 m/s with respect to ...

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Q: EM: The device at the right represents a simplified camera flash circuit. With V = 3V and R 150 Q, f...

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Q: 2. A crate with mass m2 =10kgs and a block with mass m, =7kgs hung on a pulley system. Ignoring the ...

A: Draw the free-body diagram of the block.

Q: A fly ball is hit to the outfield during a baseball game. Let's neglect the effects of air resistanc...

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Q: CsSnI3, a perovskite semiconductor, has a band gap of 1.3 eV. What area of the electromagnetic spect...

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