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!
Compute each part of given question:
Question: A radioactive isotope has a half-life of 76.0 min. A sample is prepared that has an initial activity of 16.0E10 Bq.
Part A: How many radioactive nuclei are initially present in the sample?
Part B: How many are present after 76.0 min?
Part C: How many radioactive nuclei are present 152.0 min after the sample was first prepared?
Part D: What is the activity after 152.0 min?
For some reason I keep getting it wrong I don't know if it's a calculation error. Please show your work so I can see what I'm doing wrong with this above question! Please help.
A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 10.0 m/s, How long is he in the air
when a person inhales air moves down the bronchus windpipe at14cms. the average flow speed of the air doubles through a
The density of a 5.0-m long rod can be described by the linear density function ?(x) = 125 g/m + 13.3x g/m2. One end of the rod is positioned at x = 0 and the other at x = 5 m
Two children who are bored while waiting for their flight at the airport decide to race from one end of the 20 -long moving sidewalk to the other and back. Phillippe runs on the sidewalk at 2.0 (relative to the sidewalk). Renee runs on the floor at 2..
The heels on a pair of women's shoes have radii of 0.42cm at the bottom. If 32 percent of the weight of a woman weighing 580N is supported by each heel, find the stress on each heel.
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
When 1.0 kg of coal is burned, about 3.0 x 107 J of energy is released. how many kilograms of coal must be burned to produce the same energy as 0.79 kg of 92U235
a kid fires water horizontally from a squirt gun held 1.4 above the ground. it hits another kid 2.3 away square in the
A circular surface with a radius of 0.068 m is exposed to a uniform electric field of magnitude 1.43×104 N/C. The electric flux during the surface is 60 N·m2/C. What is the angle among the direction of the electric field and the normal to the surface..
A bowling ball, which can be treated as a solid sphere with a diameter of 21.6 cm and a weight of 33 kg, The kinetic energy of the bowling ball is
A wire carries a current of 0.665 A. This wire makes an angle of 55.5° with respect to a magnetic field of magnitude 4.92E-5 T, What is the length of the wire
A rocket is launched at an angle of 58.0�° above the horizontal with an initial speed of 102 m/s. Find the maximum altitude reached by the rocket
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