A sample of radioactive material contains 1.1E15 atoms and has an activity of 6.3E11 Bq. What is its half-life?
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A sample of radioactive material contains 1.1E15 atoms and has
an activity of 6.3E11 Bq. What...
A sample of radioactive material is initially found to have an activity of 114 Bq. After...
A sample of radioactive material is initially found to have an activity of 114 Bq. After 4 days and 5 hours, the activity of the sample is found to be 85 Bq. 1) Calculate the disintegration constant of this material. 1 = 51 Submit 2) Calculate the half-life of the material. T12- days Submit 3) How long from the beginning (when the activity was 114 Bq) did it take for the sample to reach an activity of 10 Bq? t...
5. A sample with 4.0x 1015 atoms has an activity of 3.50 1012 Bq. It has...
5. A sample with 4.0x 1015 atoms has an activity of 3.50 1012 Bq. It has a half-life of 600 years (a) How much is the decay constant? (2 marks) (b) How much time will it take to drop to one-quarter of its original amount? (2 marks)
A uniformly charged disk of radius 35.0 cm carries a charge density of 6.00 x 103...
A uniformly charged disk of radius 35.0 cm carries a charge density of 6.00 x 103 C/m2. Calculate the electric field on the axis of the disk at the following distances from the center of the disk. (a) 5.00 cm 302 Your response is within 10% of the correct value This may be due to roundoff error, or you could have a mistake in your calculation least four-digit accuracy to minimize roundoff error. MN/C carry out all ntermediate results to,...
Madelyn and Scarlett decide to work a problem from the book. An RLC circuit has been...
Madelyn and Scarlett decide to work a problem from the book. An RLC circuit has been set up as illustrated in the simulation. Initially, the switch S is at a, allowing the capacitor to charge. With the capacitor already fully charged, the switch is moved to b at time t = 0. As a result, the capacitor is being allowed to discharge through the resistor and the inductor. Find the frequency f of the oscillations in current that result, using...
As a 9.00-mol sample of a monatomic ideal gas expands adiabatically, the work done on it...
As a 9.00-mol sample of a monatomic ideal gas expands adiabatically, the work done on it is -2.50 103 . The initial temperature and pressure of the gas are 480 K and 2.40 atm. Calculate the following. (a) the final temperature 480 x Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize...
A race car moves such that its position fits the relationship x = (5.5 m/s)t +...
A race car moves such that its position fits the
relationship
x = (5.5 m/s)t + (0.85
m/s3)t3
where x is measured in meters and t in
seconds.
(b) bo termine the instantane os decimal places in your answer.) elocity or the ear at t 、75, using time intervals of 0 40 s, o 20 s, and 0.10 s (in order to better see the limiting process keep at least three t65 68 n iO% of the correct value. This...
The extremes of the x-ray portion of the electromagnetic spectrum range from lambda = 1.0 times...
The extremes of the x-ray portion of the electromagnetic spectrum range from lambda = 1.0 times 10^-8 m to 1.0 times 10^-1.3 m. Find the minimum accelerating voltages required to produce wavelengths at these two extremes. V = For 1.0 times 10^-8 m, Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize...
Switch S shown in the figure below has been closed for a long time, and the...
Switch S shown in the figure below has been closed for a long time, and the electric circuit carries a constant current. Take C 3.00 F, C2 6.00 uF, R1 = 4.00 k, and R2 = 7.00 k. The power delivered to R2 is 2.00 W. R C - S R, (a) Find the charge on C. Q 222.18 Your response is within 10 % of the correct value. This may be due to roundoff error, or you could have...
PRACTICE IT Use the worked example above to help you solve this problem. Charge q1 6.90...
PRACTICE IT Use the worked example above to help you solve this problem. Charge q1 6.90 uC is at the origin, and charge 92 =-4.90 pC is on the x-axis, 0.300 m from the origin (see figure). (a) Find the magnitude and direction of the electric field at point P, which has coordinates (O, 0.400) m. 2.53e5 magnitude Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake...
A 7.80-9 bullet moving at 470 m/s penetrates a tree trunk to a depth of 4.90...
A 7.80-9 bullet moving at 470 m/s penetrates a tree trunk to a depth of 4.90 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. 18728.48 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N (b) Assuming the frictional force is...
A sample of radioactive material is initially found to have an activity of 114 Bq. After 4 days and 5 hours, the activity of the sample is found to be 85 Bq. 1) Calculate the disintegration constant of this material. 1 = 51 Submit 2) Calculate the half-life of the material. T12- days Submit 3) How long from the beginning (when the activity was 114 Bq) did it take for the sample to reach an activity of 10 Bq? t...
5. A sample with 4.0x 1015 atoms has an activity of 3.50 1012 Bq. It has a half-life of 600 years (a) How much is the decay constant? (2 marks) (b) How much time will it take to drop to one-quarter of its original amount? (2 marks)
A uniformly charged disk of radius 35.0 cm carries a charge density of 6.00 x 103 C/m2. Calculate the electric field on the axis of the disk at the following distances from the center of the disk. (a) 5.00 cm 302 Your response is within 10% of the correct value This may be due to roundoff error, or you could have a mistake in your calculation least four-digit accuracy to minimize roundoff error. MN/C carry out all ntermediate results to,...
Madelyn and Scarlett decide to work a problem from the book. An RLC circuit has been set up as illustrated in the simulation. Initially, the switch S is at a, allowing the capacitor to charge. With the capacitor already fully charged, the switch is moved to b at time t = 0. As a result, the capacitor is being allowed to discharge through the resistor and the inductor. Find the frequency f of the oscillations in current that result, using...
As a 9.00-mol sample of a monatomic ideal gas expands adiabatically, the work done on it is -2.50 103 . The initial temperature and pressure of the gas are 480 K and 2.40 atm. Calculate the following. (a) the final temperature 480 x Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize...
A race car moves such that its position fits the
relationship
x = (5.5 m/s)t + (0.85
m/s3)t3
where x is measured in meters and t in
seconds.
(b) bo termine the instantane os decimal places in your answer.) elocity or the ear at t 、75, using time intervals of 0 40 s, o 20 s, and 0.10 s (in order to better see the limiting process keep at least three t65 68 n iO% of the correct value. This...
The extremes of the x-ray portion of the electromagnetic spectrum range from lambda = 1.0 times 10^-8 m to 1.0 times 10^-1.3 m. Find the minimum accelerating voltages required to produce wavelengths at these two extremes. V = For 1.0 times 10^-8 m, Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize...
Switch S shown in the figure below has been closed for a long time, and the electric circuit carries a constant current. Take C 3.00 F, C2 6.00 uF, R1 = 4.00 k, and R2 = 7.00 k. The power delivered to R2 is 2.00 W. R C - S R, (a) Find the charge on C. Q 222.18 Your response is within 10 % of the correct value. This may be due to roundoff error, or you could have...
PRACTICE IT Use the worked example above to help you solve this problem. Charge q1 6.90 uC is at the origin, and charge 92 =-4.90 pC is on the x-axis, 0.300 m from the origin (see figure). (a) Find the magnitude and direction of the electric field at point P, which has coordinates (O, 0.400) m. 2.53e5 magnitude Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake...
A 7.80-9 bullet moving at 470 m/s penetrates a tree trunk to a depth of 4.90 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. 18728.48 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. N (b) Assuming the frictional force is...
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