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Determine the ratio of the electric force to the gravitational force between an electron and a proton when separated by a distance r.
Calculate the magnitude and direction of the electric field at a point P which is 30 cm to the right of a point charge Q = -3.0 x 10-6 C
What is the force acting on a 5m2 wall by normal atmospheric pressure at sea level (101kPa)?
What force must be applied to a surface area of 0.5m2 to produce a pressure of 2.3×105Pa?
You drive 9 miles east then 9 miles north
A 60-cm tall glass is filled with water to a depth of 40cm.What is the pressure at the bottom of the glass?
A sample of unknown material weighs 450N in air and 300N when submerged in water with a density of 1000kg/m3.What is the density of the material?
Find the mass of 3 liters of water. Show your solution
1.The intensity of sound is found to be 7.3×10-5 Wm-2 at3.5m.Find the soind intensity if the observer is:
a. 2m
b. 5m
c. 10m
2.Solve for the power in problem number 1 (a,b,c)
1.A string is 1.2m long.If the wave speed is 400m/s.Find the
a.first harmonic
b.second harmonic
c.third harmonic
d.fourth harmonic
e.tenth harmonic
2.Find the wavelength of each harmonic in problem 1.
a.first harmonic
b.second harmonic
c. third harmonic
d.fourth harmonic
e.tenth harmonic
#340153 on Dec 2023