Blog

Carbon 14 would be a good means of assigning absolute ages to very old (billions of years) igneous rocks?

Pressure always increases with increasing depth in the crust?

How much more energy is released in a magnitude 7 earthquake than a magnitude 5 earthquake?

Which of the following is a reverse fault?

Hominids originated in the late Mesozoic, roughly 80 million years ago?

The age of a crystal in a rock as determined by radiometric dating would not be affected by metamorphism?

What is the name of the metamorphic rock seen in the picture below?

Order the basic divisions of the geologic time scale from longest to shortest.

A 50.0-kg crate is being pulled along a horizontal frictionless surface. The pulling force is 10.0 N and is directed 40.0° above the horizontal. What is the magnitude of the acceleration of the crate?

A policeman investigating an accident measures the skid marks left by a car on the horizontal road. He determines that the distance between the point that the driver slammed on the brakes thereby locking the wheels and the point where the car came to a stop was 28.0 m. From a reference manual he determines that the coefficients of static and kinetic friction between the tires and the road under the prevailing conditions was 0.7 20 and 0.310, respectively. How fast was the car going when the driver applied the brakes?