У От х 02

Q: Shannon has a mass of 60 kg and steps into an elevator on the top floor of a building with her bathr...

A: the scale reading while accelerates downward  substitute the known values,

Q: A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the c...

A: Since the work done for both the charges to move from one plate to another is same.    

Q: Can you show how they got their answer for Ein in the attached screen shot?

A: Consider a gaussian surface with  radius r inside the shell. Then the charge enclosed inside the she...

Q: What is the repulsive electrical force between two protons 4.0x10^-15meters apart from each other in...

A: The equation for the magnitude of the electrical force between two point charges is given by,  

Q: Why when a parachutist jumps out of an airplane is the vertical drag forces maximum at terminal velo...

A: The drag force is a resistive force that acts on body, when the body is in motion through a fluid. T...

Q: does the period of a pendulum depend on the mass of the bob?

A: Formula of the time period of a pendulum, Where, T is time period, l is length of the rod and g is ...

Q: Answer must be according the correct signifcant numbers.

A: It is given that

Q: Sphere A has initial charge qo. How many successive contacts with an uncharged identical sphere must...

A: The charge will be transferred from the charged sphere to the uncharged one until the two spheres ha...

Q: Three equal point charges, each with charge 1.00 μCμC , are placed at the vertices of an equilateral...

A: The equation for the potential energy due to two point charges is given by, The net potential energ...

Q: Hi, please provide the correct answer for the 1st part.  Find m1.   much appreciated,   Thanks! ??

A: Consider the tension in the cable be T, and the acceleration of the object be a.   The free-body dia...

Q: The earth spins on its axis once a day and orbits the sun once a year (365 1/4 days). Determine the ...

A: (a) The spinning angular velocity of the earth about its axis of rotation is:

Q: An insulating sphere of radius 0.190 m has uniform charge density 6.90×10−9 C/m^3. A small object th...

A: It is given that

Q: A projectile was fired at an angle of 45 degrees to the horizontal plane at a  speed of  300 m/s. Ho...

A: The vertical velocity of the projectile is

Q: A 2.20-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.90 m down ...

A: Given Mass m = 2.20 kg Distance travelled d= 1.90 m Duration t = 1.80 s Initial velocity u = 0 m/s

Q: A student who weighs 545 N climbs a stairway (vertical height of 4.3 m) in 30 s. What is the power o...

A: The work done by the student is,

Q: Please help me with all the parts, there are 2 total parts attached as 2 different screenshots.

A: The free-body diagram of the forces on the housing unit is,

Q: Find the net electric flux through the spherical closed surface shown in the figure below. The two c...

A:

Q: A circular steel casting with a grap, if a casting is heated (A) does width of the grap in increase ...

A: The change in width of the circular steel is

Q: In the open ocean, the tides are waves that have a period of 12 hours and a speed of 750km/hr. What ...

A: Wave speed,

Q: A wire of length L and cross-sectional area A has resistance R. What will be the resistance Rstretch...

A: A wire has length L, cross sectional area A and resistance R. Then resistance of the wire is given a...

Q: A cylinder in an engine is 11.40cm in diameter amd 24.00cm high. find the area and volume.

A:

Q: What are the magnitude and the direction of the force on a -5.31 nC charge in an electric field of +...

A:

Q: Calculate the density in g/ml of H2O if a 9846 ml bottle weighs 689 g.

A: The density is defined as ratio of mass by volume.

Q: What is the equivalent value of the capacitance for the figure shown? C1 = 27.0 μF, C2 = 12.0 μF and...

A: consider the figure given in question. The capacitor C1, and C2 are connected in series and its comb...

Q: A positive charge Q1 = 38.5 nC is located at the origin. A negative charge Q2 = -6.5 nC is located o...

A: Let the point where electric field due to charge charge Q1, and Q2 is zero be x. The electric field ...

Q: . A student attaches a ball to the end of a string 0.600 min length and then swings the ball in a ve...

A: a) The required acceleration at the highest point is,  

Q: What is the charge Q2 if the potential at the dot is 3.89×103 V? The charge on Q1 is 4.00 nC and the...

A: Given: Potential at dot = 3.89 X 103 V Charge on Q1 = 4 nC Charge on Q3 = -7 nC Distance between Q1 ...

Q: Compute your  Average velocity in the following two cases: (a)  You walk 61.4 m at a speed of 2.47 m...

A: Part (a): Given,

Q: For y = 0 the firing angle which optimizes a projectile's range is 45 degrees. For y < 0 (landing...

A: Let v be the initial velocity of the projectile, theta be the angle at which it is projected, t be t...

Q: A flywheel rotating at 12 rev/s is brought to rest in 5 s. The magnitude of the average angular acce...

A: The initial angular velocityof the flywheel,

Q: parts b and H- Please help me with all the parts there are 2 parts attached as 2 different screensho...

A: Given: Mass of the person = 67 kg Gravitational acceleration = 9.8 m/s2

Q: A truck covers 40.0 m in 9.35 s while uniformly slowing down to a final velocity of 2.95 m/s find th...

A:

Q: A small plane that travels with constant speed, has a mass m = 1643 kg. This includes load. The comb...

A: Given: Mass = 1643 kg Area of both wings = 20.5 m2 Speed of air below wind = 147 m/s Air density = 1...

Q: A small charged sphere is attached to a thread and placed in an electric field. The other end of the...

A: a) The magnitude of the electric field is,  

Q: A 9.54-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic fric...

A:

Q: There are three distinct sounds coming from a sound source 6 blocks away. Using the illustrations ab...

A: Given information: The speed of sound in air (v) = 340 m/s From the given figure the we can infer th...

Q: please help me

A: Mass of the elevator m = 2110 kg Maximum tension T = 2.175 x 104 N = 21750 N

Q: A circular-motion addict of mass 81.0 kg rides a Ferris wheel around in a vertical circle of radius ...

A: a. The period of the motion can be calculated as follows.  

Q: Calculate the increase in sound level resulting from using an ear trumpet to aid in hearing. Take th...

A: The equation for the intensity of sound is For sound having same power, the relation between the ar...

Q: What human sense is first in supplying the most information about the external world?

A: Our environment stimulates our senses, either directly or indirectly. The five senses (sight, hearin...

Q: In the following exercises assume that there's no damping.

A:

Q: Can you please answer number 6 and show the steps

A:

Q: In the following exercises assume that there's no damping.

A: Write the expression for the displacement of the mass in terms of the force and substitute the known...

Q: If a closed cylindrical surface of height 0.3m and diameter 0.2 m were placed as shown, completely e...

A: According to the gauss law, the net electric flux through the surface of the closed cylindrical mate...

Q: Current passes through a solution of sodium chloride. In 1.00 second, 2.68×10^16Na+ ions arrive at t...

A: Number of sodium ion,

Q: An object of mass m falls from rest in a vacuum. As it falls it losses an amount E of gravitational ...

A: Let object is falling from the height h Mass of the object = m Loss in gravitational potential energ...

Q: A ball is thrown downward from the top of a 300 ft tall building with an initial velocity of 100 ft/...

A: Given,

Q: A parallel-plate vacuum capacitor is connected to a battery and charged until the stored electric en...

A: (a) The energy stored in the capacitor is U. As the battery is disconnected from the circuit and a d...

Q: Light with a wavelength of 633 nm passes through a slit 7.79 A7 first dark fringe on either side. wi...

A: The condition for the minimum diffraction for a single slit is given by,

Q: I am stuck on a Physic problem and need help. The question is: Influenced by the gravitational pull ...

A:

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.