What is the half-life of the isotope
A certain radioactive isotope placed near a Geiger counter registers 160 counts per second. 32 hours later, the counter registers 10 counts per second. What is the half-life of the isotope?
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An iron bolt of mass 65.0 g hangs from a string 32.0 cm long. The top end of the string is fixed. Without touching it, a magnet attracts the bolt so that it remains stationary, displaced horizontally 28.0 cm to the right from the previously vertic
During the same interval, a 28 greyhound can accelerate from rest to 23 . Compute (a) the change in kinetic energy and (b) the average power output for each.
The pile driver falls 3.80 m before coming into contact with the top of the beam, and it drives the beam 13.0 cm farther into the ground as it comes to rest. Using energy considerations, calculate the average force the beam exerts on the pile driv
What fraction of the chemical energy transformed appears as internal energy in the batteries?
While mopping the deck, a sailor pushes with a force of 30 N down on the handle of his mop at an angle of 45 to the horizontal. If the mop accelerates horizontally at 1.0 m/s2 and the coefficient of kinetic friction is 0.10, what is the mass of th
A 1.60-m tall person lifts a 2.10-kg book from the ground so it is 2.20 m above the ground. (a) What is the potential energy of the book relative to the ground? Number Units (b) What is the potential energy of the book relative to top of the perso
41.1 min at 37 km/h, and spends 15.4 min along the way eating lunch and buying gas. Determine the average speed for the trip.
The primary coil of a transformer has 237 turns; the secondary coil has 2100 turns. An alternating current is sent through the primary coil. The emf in the primary is 25 V. What is the emf amplitude in the secondary?
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult