What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes?

1. being able to Carbon date fossils

2. X-ray Imaging capability

3. radiation treatment for cancer

4. invention of microwave cooking

A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and a resistor. The circuit does not contain a voltmeter or an ammeter. When the circuit is operating, the total current through the circuit is 0.50 ampere.

Refrigerant-134a enters the expansion valve of a refrigeration system at 160 psia as a saturated liquid and leaves at 30 psia. Determine the temperature and internal energy change across the valve.

Explain the relationship between gravity and pressure in a nebula

How does the human eye see objects? A. Light reflects off objects, enters the eyes, and is detected by the optic nerve in the retina. B. Light absorbed by objects, enters the eyes, and is refracted by the optic nerve in the retina. C.

Which object experiences the greatest gravitational force? A) car B) fire truck C) plane D) human

A projectile was launched horizontally with a velocity of 468m/s, 1.86m above the ground how long did it take the projectile to hit the ground

A racquet ball with mass m = 0.241 kg is moving toward the wall at v = 13.7 m/s and at an angle of θ = 34° with respect to the horizontal.

What type of plate boundary would be found along the coast line near Japan's volcanic mountain ranges

When the current in a toroidal solenoid is changing at a rate of 0.0270 A/s, the magnitude of the induced emf is 12.5 mV. When the current equals 1.30 A, the average flux through each turn of the solenoid is 0.00245 Wb.

A spring tide can occur at what day and month?