Newest physics B Questions | Wyzant Ask An Expert

08/20/20

Physics question #1 part b

A 3.75 kg object tied to a string is swung around a person’s head in a horizontal circle. The length of the string is 1.0 m and the maximum force the string can withstand without breaking is 25.0... more

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Physics B Physics Electrical Engineering Mechanical Engineering

08/20/20

Ventilation of a thick, metal Faraday Cage/Physics or Engineering question

How can you permit airflow in a faraday cage built of thick metal that shields high and low frequencies?

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Physics B Science Physics Actuarial Science

07/11/20

The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12 m/s at an angle 47 degrees

Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12 m/s at an angle 47 degrees; with respect to the horizontal.... more

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Physics B Math Science Physics

07/11/20

Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the horizontal.

Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the horizontal. The ball is struck 3 feet above home plate. You watch as the... more

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Physics B Math Calculus Physics

07/11/20

A blue ball is thrown upward with an initial speed of 23.5 m/s, from a height of 0.7 meters above the ground. 2.9 seconds

A blue ball is thrown upward with an initial speed of 23.5 m/s, from a height of 0.7 meters above the ground. 2.9 seconds after the blue ball is thrown, a red ball is thrown down with an initial... more

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Physics B Math Calculus Physics

07/11/20

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds.

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds. It then continues at a... more

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Physics B Calculus

07/09/20

Photography Maximum Angle

A photographer is taking a picture of a 4-foot painting hung in an art gallery. The cameralens is 1 foot below the lower edge of the painting. How far should the camera be fromthe painting to... more

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Physics B Physics Physics C

06/26/20

hello to all the best tutors here !

I have recently a problem with one of the fundamental of physics book which is chapter 31 and i cant really solve the problems specially the RLC circuits , is there anything i can do for... more

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Physics B Physics

06/25/20

please answer this :

As a loop of wire with a resistance of 10  moves in a constant non-uniform magnetic field,it loses kinetic energy at a uniform rate of 5 mJ/s. The induced current in the loop:

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Physics B Physics

06/22/20

please answer :

A solenoid is 3.0 cm long and has a radius of 0.50 cm. It is wrapped with 500 turns of wirecarrying a current of 2.0 A. The magnetic field at the center of the solenoid is:

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Physics B Physics

06/22/20

please answer :

Two parallel wires, 4 cm apart, carry currents of 2 A and 4 A respectively, in the samedirection. The force per unit length in N/m of one wire on the other is:

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Physics B Physics

06/21/20

please answer this :

In a certain mass spectrograph, an ion beam passes through a velocity filter consisting ofmutually perpendicular fields E and B. The beam then enters a region of another magnetic fieldB '... more

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Physics B Physics Physics C

06/21/20

please explain the answer

A uniform magnetic field is in the positive z direction. A positively charged particle ismoving in the positive x direction through the field. The net force on the particle can be madezero by... more

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Physics B Physics Physics C

06/04/20

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A parallel-plate capacitor has a plate area of 0.3 m2 and a plate separation of 0.1 mm. If thecharge on each plate has a magnitude of 5  10^–6 C then the force exerted by one plate on theother has... more

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Physics B Physics Physics C

06/04/20

please answer this :

Eight identical spherical raindrops are each at a potential V, relative to the potential faraway. They coalesce to make one spherical raindrop whose potential is:A) V/8B) V/2C) 2VD) 4VE) 8V

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Physics B Physics Physics C

06/04/20

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Positive charge Q is placed on a conducting spherical shell with inner radius R1 and outerradius R2. A point charge q is placed at the center of the cavity. The magnitude of the electricfield... more

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Physics B Physics Physics C

06/04/20

please answer this :

A conducting sphere of radius 0.01 m has a charge of 1.0  10^–9 C deposited on it. Themagnitude of the electric field in N/C just outside the surface of the sphere is:A) zeroB) 450C) 900D) 4500E)... more

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Physics B Physics Physics C

06/04/20

please explain:

A charged particle is placed in an electric field that varies with location. No force isexerted on this charge:A) at locations where the electric field is zeroB) at locations where the electric... more

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Physics B Physics Physics C

05/30/20

please answer this :

A galvanometer has an internal resistance of 12  and requires 0.01 A for full scaledeflection. To convert it to a voltmeter reading 3 V full scale, one must use a series resistance of:A) 102 B)... more

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Physics B Physics Physics C

05/30/20

please answer this :

A certain ammeter has an internal resistance of 1  and a range from 0 to 50 mA. To makeits range from 0 to 5 A, use:A) a series resistance of 99 B) an extremely large (say 106 ) series... more

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Physics B Physics Physics C

05/30/20

please answer this :

A charged capacitor is being discharged through a resistor. At the end of one time constantthe charge has been reduced by (1 – 1/e) = 63% of its initial value. At the end of two timeconstants the... more

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Physics B Physics Physics C

05/30/20

please answer this :

A certain capacitor, in series with a resistor, is being charged. At the end of 10 ms its chargeis half the final value. The time constant for the process is about:A) 0.43 msB) 2.3 msC) 6.9 msD) 10... more

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Physics B Physics Physics C

05/30/20

please answer this

55. To make a galvanometer into an ammeter, connect:A) a high resistance in parallelB) a high resistance in seriesC) a low resistance in seriesD) a low resistance in parallelE) a source of emf in... more

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Physics B Physics Physics C

05/30/20

please answer this

Two identical batteries, each with an emf of 18 V and an internal resistance of 1 , arewired in parallel by connecting their positive terminals together and connecting their negativeterminals... more

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Physics B Physics Physics C

05/23/20

capacitance series with battery

When a dielectric slab is insertedbetween the plates of one of the twoidentical capacitors which are series and connected to a battery, do thefollowing properties of that capacitor... more

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Physics question #1 part b

Ventilation of a thick, metal Faraday Cage/Physics or Engineering question

The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 12 m/s at an angle 47 degrees

Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the horizontal.

A blue ball is thrown upward with an initial speed of 23.5 m/s, from a height of 0.7 meters above the ground. 2.9 seconds

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds.

Photography Maximum Angle

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please explain the answer

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capacitance series with battery

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