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Water drips from the nozzle of a shower onto the floor 235 cm below. The drops fall at regular (equal) intervals of time, the first drop striking the floor at the instant the fourth drop begins to fall. Find the location of the third drop as measured from the nozzle of the shower when the first drop strikes the floor. (cm below the nozzle)
A point charge of 8.40 mC is surrounded by an equipotential surface with a radius of 0.300 m. What is the electric potential on the surface
What is the total work W_fric completed on the block by the force of friction as the block moves a distance 8 rm m up the incline.
A cat stuck up a tree and has 500 J gravitational potential energy. It then falls. Find the kinetic energy of the cat just before it is caught by the owner. Find the kinetic energy of the cat after it is caught by the owner.
Derive an expression for the surface temperature of the Sun, in terms only of its solid angle, its flux per unit wavelength f(lambda1) at Earth at one wavelength (lambda 1) and its fundamental constants
A 2.5 meter long elastic cord is fixed at both ends. at what frequency should this cord be vibrated such that a n-10 standing wave is produced
What is the range of wavelengths for FM radio (88 MHz to 108 MHz) and AM radio (535 kHz to 1700 kHz)? (answer: for FM: 2.78m to 3.4m, for AM: 176m to 561m)
A 75 g spherical ball rolls without slipping down a ramp that makes an angle of 20 degrees with the horizontal. Find the magnitude and direction of the frictional force on the ball
An astronomical telescope uses an eyepiece of power +80.000 D. what is the magnification of the telescope
In the figure, a 4.0 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distan..
You buy an ice cream cone. The cone you are given is filled with melted ice cream of density 1.2g/cm^3. Find the pressure at the bottom of the cone
A circular window with 0.5m radius on a submarine can withstand a maximum pressure of 8900 N/m^2. How deep can the sub safely dive
What percentage of the neutrons would not interact if the concrete slab were made 36.0 cm thick? I know this is 1.305x10^1. B) How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted?
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