What is the half-life and decay constant
The counting rate from a radioactive source is 8000 counts/s at time t=0, while 10 mins later the rate is 1000 counts/s.
(a) What is the half-life?
(b) What is the decay constant?
(c) What is the counting rate after 30 minutes?
Expected delivery within 24 Hours
Determine the following The force acting on a 1 m2 surface corresponding to a 1 kPa pressure applied over the entire surface.
Coming out of a factory chimney are the following gases, CO2, SO2, O2, N2, H2O with volume percentage to be 13.5%, 0.3%, 5.2%, 76%, and 5% respectively. Calculate density of the gas mixture.
A 10.0 kΩ resistor and a capacitor are connected in series and then a 10.0 V potential difference is suddenly applied across them. The potential difference across the capacitor rises to 5.00 V in 1.40 µs.
If the force of the spring on the cylinder is F => (100s^1/3) lb, where s is given in feet, determine the speed of the cylinder just after it moves away from the spring, i.e., at s = 0.
The counting rate from a radioactive source is 8000 counts/s at time t=0, while 10 mins later the rate is 1000 counts/s. (a) What is the half-life? (b) What is the decay constant?
The flow areas are different for each cross-section. Find the Temperatures at (2) and (4), external heat transfer rate, 2Q3 (kJ/s) and nozzle exit diameter, D5 (m).
The energy loss in the system is 2.5 times the velocity head in the 2-inch pipe. Calculate the horsepower delivered by the pump to the oil.
A solid uniform spherical marble with mass 1kg and r= .02m rolls down a hill starting from rest. The hill is 1m high and has a hypotenuse of 2m. a. gravitational potential energy of the marble at the top of the hill?
1951752
Questions Asked
3,689
Active Tutors
1428438
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Provide a thorough, insightful comparison between the alternative plan and the preceptor's approach, analyzing key differences in clinical experience
A 43-year-old male presents to the clinic with malaise, fever, productive yellow-greenish cough, and mild right chest discomfort
HPI The patient is a 30 year old female who presents with neck pain. The pain has been persistent for the past week and is described as a dull ache.
Management of Shock Homework Case Study One Stage: A small animal practice with a team of five members: one veterinarian,
2-week-old Alyssa, presents for Well Child Care4-week-old male infant presents for well visit with parents reporting they noticed his left eye was caked dry
Provide feedback on their questions and plan for educating the client. Explain the social worker's role in the recommended intervention
Which components of patient-centered care did the healthcare providers do well in the video?