Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Radon is a radioactive gas, commonly found in the basement of ahouse. It has a half- life of 3.8 days.
a. What is the decay constant of radon in (second)-1?
b. Ahouse basement contains initially 5.0 × 107 radon atoms. Howlong does it take for theactivity to be reduced to 0.1% of its initial value? Assume thatthe basement is sealed off so that radon gas cannot enter of leave thebasement.
c. It will take four times as long to reduce the activity to 10-4 ofits original activity?
The Cosmoclock 21 Ferris Wheel in Yokohama City Japan hasdiameter of 100m, Find the speed of the passengers when the Ferris wheel isrotating at this rate
A cubic metal box with sides of 18 cm contains air at a pressure of 1 atm and a temperature of 311 K. Find the force due to the internal air pressure on each wall
A particle with a rest mass of M=135GeV/c^2 or 1.35x10^11 eV/c^2 decays into two particles (which emerge back-to-back). The speeds of the two particles are measured at v1=.9c and v2=.01c. What are the masses of the two particles?
Three charges, each of magnitude 9 nC, are at separate corners of a square of edge length 4 cm. The two charges at opposite corners are positive, and the other charge is negative.
suppose the water at the top of niagara falls has a horizontal speed of 3.2 ms just before it cascades over the edge of
An 8m, 290 N uniform ladders rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.75, and the ladder makes a 50° angle with the ground. How far up the ladder can a 720 N person climb before the lad..
An 271 N object is moving to right when forces act on it Two forces act in + y direction (up) 32 N and 17 N One force acts in down , -y, direction 20N Two forces act to right , +x, direction 18 N and 26N, Determine the net force on the particle
An ice skater is gliding horizontally across the ice with an initial velocity of +6.46 m/s. How much time elapses before her velocity is reduced to +2.69 m/s
Two capacitors C1 = 5.6 ?F, C2 = 13.7 ?F are charged individually to V1 = 16.4 V, V2 = 6.1 V. Calculate the final potential difference across the plates of the capacitors once they are connected
A 60 kg skier skis a distance of d=200 m down a q=15o incline starting from rest. His speed at the bottom of the hill is 5 m/s. What was the NET work done on the skier
A blackbody is emitting radiation at a rate of 25 W at 27oC. what is the rate of emission
A 60 kg person jumps off a diving board and hits the water with a speed of 21 m/s. Determine the magnitude and direction of the average force that the water exerts on the diver
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd