Which of the following is a reverse fault?

When did the Phanerozoic era begin?  This is the same time as the end of the Proterozoic, and the beginning of the Cambrian period.  Enter your result as millions of years.  For example: if you think the answer is 3.5 billion years ago, enter 3500.  Or if you think it’s 5 million years ago, enter 5.

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

The innermost satellite of Jupiter orbits the planet with a radius of 4.22 × 105 km. What is the period of the satellite in Earth’s day? MJupiter = 1.89 x 1027 kg, G = 6.67 × 10-11 N ∙ m2/kg2.

An object has a mass of 60 kg on Earth. What are the mass and weight of this object on the surface of the Mars where the acceleration due to gravity is only 2/3 of what it is on Earth?

The captain of a spaceship orbiting planet X discovers that to remain in orbit at 410 km from the planet’s center, she needs to maintain a speed of 68 m/s. What is the mass of planet X? G = 6.67 × 10-11 N ∙ m2/kg2.

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?

The circular blade of a table saw is 20 centimeters in diameter and spins at 4000 rpm. 

 A 1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. What is the magnitude of the friction force required to keep the car from sliding?

What type of current will a PTA be using for iontophoresis?