Determine half-life of the radioactive substance
The bacteria population doulbes every six days. The scientist started her count from 6432 bacteria. When will the count reach 10674? Determine half-life of the radioactive substance if 2.4g decays to 0.8g in 41 hours.
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A car of 1000 kg moves at a speed velocity of 2.0m/s. Determine its kinetic energy? Determine the required velocity for a 20.0 gram bullet which would encompass the similar kinetic energy as the car?
The rectangular flower bed is to be twice as long as it is wide. If they are enclosed should be greater than 72m2, what can you conclude about width of flower bed? Illustrate work.
The two slits are illuminated by light which comprises of two wavelengths. One wavelength is acknowledged to be 436 nm. On a screen, the fourth minimum of the 436 nm light coincides with the third maximum of the light. Determine the wavelength of
In Young's experiment, narrow double slits 0.2 mm apart diffract the monochromatic light onto a screen 1.5m away. The distance among the fifth minima on either side of the zeroth order maximum is calculated to be 34.73mm. Find out the wavelength o
Determine the magnitude of the rms magnetic field of the gamma-ray pulse at the surface of magnetar, supposing that the pulse radiates evenly outward in all directions.
A rubber ball is dropped to a hard floor from the height of 2.0 meters. It then rebounds to a height of 0.5 meters. i) Determine at what percentage of initial potential energy was ‘lost’ in the collision?
The initial investment of 4000 dollars grows at the annual interest rate of 4 percent compounded continously. How long will it take to double investment.
A wire Cu having a diameter of 1 mm carries a net current I = 1x10-3 A. When this current is evenly distributed across the wire’s cross section, determine the speed of free charges carrying the current. Suppose that there is one free e
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