Question

4. Calculate the specific power of a 90Sr power source in (a) watts per MBq.      (b)...

4. Calculate the specific power of a 90Sr power source in (a) watts per MBq.      (b) watts per kilogram.

Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
SHOW ALL WORK The power level of noise in the warehouse is measured in Watts and...
SHOW ALL WORK The power level of noise in the warehouse is measured in Watts and is normally distributed with a mean of 1 Watt and a variance of 3 Watts. Government regulations require employees to wear noise cancelling headphones if the metric X = (N1+N2+N3)/4 is greater than 2.5 Watts, where Ni for i=1,2,3 are independent measurements of the noise power level taken at three random times during the day. a) Calculate the probability that the first noise N1...
Th power of a red laser (wavelength of 630nm) is 450 watts. how many protons per...
Th power of a red laser (wavelength of 630nm) is 450 watts. how many protons per second does the laser emit?
A refrigerator has a COP of 9.5 and the power input is 80 watts. Calculate how...
A refrigerator has a COP of 9.5 and the power input is 80 watts. Calculate how many joules of energy input the refrigerator uses in 1 day and convert this into kilowatt-hours. Calculate the total energy Q(C) extracted in 1 day. If 1 kilowatt-hour of energy input costs 15 cents, calculate the cost of running the refrigerator for 1 day. Imagine 3% of the total Q(C) is used to freeze water at 0◦C into ice at 0◦C. Calculate the mass...
A particular microwave oven delivers 750 watts (exact value). (A watt is a unit of power,...
A particular microwave oven delivers 750 watts (exact value). (A watt is a unit of power, which is the joules of energy delivered, or used, per second.) If the oven uses microwave radiation with a wavelength of 12.6 cm, how many photons of this radiation are required to heat 1.00 g of water by 1.00 °C, assuming that all of the photons are absorbed? The specific heat of water is 4.184 J / g•°C at 25°C.
Garbage is a potential source of energy. The average quantity of garbage produced each day per...
Garbage is a potential source of energy. The average quantity of garbage produced each day per person in the US is approximately 2 kg. Assuming the energy content of the garbage to be approximately one-half of that of coal, determine the per-capita power, in watts, that could be obtained through its combustion. Based on a continuous per-capita consumption rate of 12 kW, determine the fraction of this quantity that could be supplied by garbage. Assume the heating value of one...
A source R of red light, a source G of green light, and a source B...
A source R of red light, a source G of green light, and a source B of blue light each produce beams of light with the same power. Rank these sources in order of increasing magnitude of the following quantities. Indicate ties where appropriate. (Use only the symbols < and =, for example R < G = B.) (a) wavelength of light (b) frequency of light (c) number of photons emitted per second
The sound intensity 30 meters from a jet engine is 10 Watts per square meter. What...
The sound intensity 30 meters from a jet engine is 10 Watts per square meter. What is the sound intensity level, in decibels, at the specified location a = 10 log [ I / IO ] IO = 10-12 W/m2 I = 10 Watts a = 130 dB B. Without hearing protection, repeated exposure to sounds at or above 80 decibels can cause hearing loss. What minimum distance from the source (the jet engine) would a listener have to keep...
3. Assume a 15-mw power source at A, A----------->B, and the receiver at B requires at...
3. Assume a 15-mw power source at A, A----------->B, and the receiver at B requires at least 0.01 mw for reception. What is the maximum allowable length for the following transmission lines if a signal at B is to be received? There may be unused information here but it gives you an idea of losses. a. 24-gauge twisted pair operating a 100MHz, 50 dB/km attenuation. b. 1/4 in. coaxial cable operating a 1GHz, 30 dB/km attenuation. c. optical fiber operating...
Problem 6:   Two students are standing the same distance from a source of sound. The first...
Problem 6:   Two students are standing the same distance from a source of sound. The first student receives a power of 246 × 10-6 W in their eardrum. The second student receives σ = 1.17 times more power in their eardrum. (A) If the second student's eardrum has a diameter of d = 1 cm what was the intensity of the sound that the student heard, in watts per square meter? (B) In this problem take the speed of sound...
A source of sound waves is isotropic, and emits a constant power P. You stand an...
A source of sound waves is isotropic, and emits a constant power P. You stand an unknown distance, r, from this source and measure the sound level to be 75.0 dB. You move 10.0 m closer to the source and measure the sound level to be 80.0 dB. a) Calculate P and r. b) with the same source and the same power output. You begin at the same distance, r, from this source and measure the sound level to be...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT