Other Physics Answers

complete process (given, required, equation, solution)

1) What is the energy of a photon of violet light with a frequency of 7.00 x 1014 Hz?

2) What is the energy of a photon of orange light with a frequency of 5.00 x 10-7 Hz?

3) What is the energy of a photon of blue light with a frequency of 6.50 x 1014 Hz?

show graphically how density of air varies with distance when a periodic sound waves travels in it.show the graph for two instants of time differing by half of periodic time.​

1. It is desired that 5.8 uC of charge be stored on each plate of a 3.2- uC capacitor.

What potential difference is required between the plates?

Courtney’s mass is 55kg. When she is in a tuck position her radius of gyration in the saggital plane is k= 0.35m and she rotates at an angular velocity of 9.9 rad/s. How fast would she rotate if she was able to bring her knees closer to her chest so reducing k to 0.28 m

If 8000 cal of heat is needed to change the temperature of a certain amount of ice at -250C to steam at 1350C, determine the mass of the ice. The specific heat of ice is 0.50 cal/g C0 while its heat of fusion is 80 cal/g. The specific heat of steam is 0.46 cal/g C0 while its heat of vaporization is 540 cal/g. 

what is meant by 5×10⁵ Newton?

The left side end of the brass bar have a temperature of 300*C, while the right side end is at constant temperature lower than the left side. The cross-sectional area of the bar is 2.55x 10^4 m2. Because of insulation, there is negligible heat loss through the sides of the bar. Heat flows through the bar, however, at the rate of 3.35 J/s. What is the temperature of the bar at a point 0.17 m from the hot end?

Calculate the number of hours necessary for 1$ worth of energy to be conducted along the wall? Let's say that 1(one) kilowatt hour of electrical energy costs $0.10. The temperature of the floor in relation with a concrete wall is 12.8*C. The temperature at the inside surface of the wall is 20.0*C. The wall is 0.10 meter thick and has an area of 9.0 m^2.

an object 3.0 cm tall is placed at a distance of 12 cm in front of a convex mirror with radius of curvature of 20cm

A shaft is timed to rotate 87 rev in 0.50 min. What is its angular speed in radians per second?