What fraction of a given sample of radioactive nuclide remains after four half lives?

In the early stages of its formation, earth became hot enough that some of its solid materials turned to liquid. Which of these factors did not directly contribute to earths high internal temperatures

How long will your trip take (in hours) if you travel 350 km at an average speed of 80 km/hr

In which thermodynamic process work done maximum

In what ways are sound waves and electromagnetic waves different? A. They travel at the same speed B. Electromagnetic waves have a frequency but not a wavelength C. Sound waves have frequency but not wavelength D.

Identify the sentence that clearly states its meaning. a) While taking a shower, across the bathroom floor, a little mouse scurried. b) While taking a shower, a little mouse scurried across the bathroom floor.

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?