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Problem: A uniform steel bar swings from a pivot at one end with a period of 1.8s.
Part A: How long is the bar?
Please provide clear step by step solution with notes on concepts and equations being used.
A golfer hits a shot to a green that is elevated 3.20 m above the point where the ball is struck. find the speed of the ball just before it lands
q1. a diffraction grating with 395 linesmm is 1.00 m in front of a screen. what is the wavelength of light whose
two point charges of equal magnitude are 7.8 cm apart. at the midpoint of the line connecting them their combined
You throw a 25.0 rock into the air from ground level and observe that, when it is 12.0 high, it is traveling upward at 17.0, Use the work-energy principle to find the rock's speed just as it left the ground
An 800 kHz radio signal is detected at a point 3.1 km distant from a transmitter tower. the electric field amplitude of the signal at that point is 210 mV/m. Assume that the signal power is radiated uniformly in all directions and that radio waves..
a magnetic field is oriented at an angle of 37 degrees to the normal of a rectangular area 4.5 cm by 7.0 cm. if the
If 15 g of radon gas with a half-life of 4 days is present in a balloon at t = 0, what is the mass of radon gas present
A converging lens is placed 20.0 cm to the right of a diverging lens of focal length 5.0 cm. Calculate the focal length of the converging lens
A single slit is illuminated with 660nm light, and the resulting diffraction pattern is viewed on a screen 2.3 m away. If the linear distance among the first and the second dark fringes of the pattern is 12 cm, what is the width of the slit?
How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted.
A 500 gram block attached to an ideal spring (k = 80 N/m) oscillates on a horizontal frictionless surface. Find the compression distance (x) of the spring
Suppose an ideal battery does 80 Joule of work in moving 7 C of charge between its terminals. Determine what the emf of this battery
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