Calculate the average speed of the electrons in m/s. ans.(2.1x10^6 m/s) ps. How do I get the answer?

Calculate the average speed of the electrons in m/s. ans.(2.1x10^6 m/s) ps. How do I get the answer?

The diagram shows a triangular prism with a ray of light entering side AB and incident on side AC as shown. The refractive index of the material making up the prism is 1.64. Identify quantitatively...

An ordinary light bulb will hum at 13 decibels one meter away in a spherical shaped wave. Explain how many decibels you would hear if you were 2 meters away from 2 light bulbs.

The battleship New Jersey has nine 16-inch guns on its deck. If a person was on deck when all nine were fired, they would be subjected to a 215 decibel level of sound. At 202 decibels, a human being...

A rocket goes up at a velocity of 20m/s on the moon. If the gravity on the moon is 1.4m/s squared, then what velocity will the rocket hit the ground at? A ball before it is thrown has a gravitational...

physics word problem

At the equator, there is a magnetic field B horizontal to the North and magnitude B: ... T (given) What is the magnitude and direction of the velocity of an electron e (me =9.31 x 10-31 Kg...

The temperature of the wire is 50 degrees (Celsius). Given that at 20 degrees, ρo = 2.82x10-8 Ωm and α = 3.9x10-3 /C. Determine: a) the resistivity of the wire b) the current...

a)The capacitance b)The charge on each plate c)The electric field between the plates d)The work done by the battery to charge the plates e)Which of the above values change is a dielectric is inserted...

Hi, I have a hard time understanding the concept of the Inverse Square Law, and hence, answering this question. Please help! The inverse square law for the intensity of light explains...

One long wire carries current 26.0 A to the left along the x axis. A second long wire carries current 70.0 A to the right along the line (y = 0.280 m, z = 0). (a) Where in the plane of the two...

A woman weighing 600 N lies on a 2.5-m-long, 60 N reaction board with her feet over the pivot as show in Figure 1. The scale on the right reads 250 N. She now extends her arms upward, in front...

A converging lens with f=29.8 cm yields an image with magnification M=−2.5. Find the object distance. in terms of centimeters. They will be assumed to be cm. to a precision of tenths of...

We want light to reflect inside material 1 as it strikes the surface between materials 1 and 2. Material 1 has an index of refraction of n1=1.62 and material 2 has an index of refraction of n2=1.23...

A diverging lens with f=−42 cm is placed 33 cm from a jar of marshmellow fluff. Find the image distance. meters. to a precision of tenths of a cm.

A 225-g block is pressed against a spring of force constant 1.45 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal. Using...

For a spectrograph fed with an f/3.32 beam, and with an f/1.33 camera, what is the magnification factor of the entrance slit at the detector focal plane (larger or smaller)? The question...

can someone help. A typical magnitude of the external magnetic field in a cardiac catheter ablation procedure using remote magnetic navigation is B = 0.080 T. Suppose that the permanent...

If you were to shake the end of a taut spring up and down 10 times a second, what would be the frequency and the period of the sinusoidal wave produced on the spring?

A thin conductive sheet is placed on the ground. The sheet is square with L m side length and carries a total charge of Q C. A small ball bearing is held above the centre of the sheet and...

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