The theory of plate tectonics suggests that about 200 million years ago, all of Earth's land was confined to a single continent called

A. Laurasia.

B. Eurasia.

C. Gondwanaland.

D. Pangaea

Two boxes (m1 = 1kg and m2 = 3kg) and accelerated across a horizontal surface by a horizontal force F, applied to the left box.

Megan faced a traumatic experience when she was ten. She completely alienates herself from the incident to cope bett disorder is Megan likely to be suffering from? A. dissociative disorder B, mood disorder c anxiety disorder D. Schizophrenia

Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter (Ccal = 15.5 J/° c. When a100.0 mL volume of 0.100 M AgNO3 solution is mixed with a 100.0 mL sample of 0.200 M NaClsolution, the temperature in the calorimeter rises to 25.

Suppose that 1000 pollen grains slam into the abdomen of a 5.0 g bee that is hovering just above the flower. the grain's mass is 1.0*10-7g. if the collision is inelastic, what is the bee's speed immediately afterward?

The density of a mineral is determined by its mass and

An olympic hurdler accelerates at a rate of 15.5 m/s2. what is the rate in miles/min2?

What is the conservation of energy?

What data are needed to calculate the actual mechanical advantage of a machine

What antenna length should be used to create a dipole antenna that emits 100-mhz electromagnetic waves, a frequency typical of fm radio broadcasts?

If a motor lifts a 400.-kilogram mass a vertical distance of 10. meters in 8.0 seconds, the minimum power generated by the motor is (1) 3.2 * 10^2 W (3) 4.9 * 10^3 W (2) 5.0 * 10^2 W (4) 3.2 * 10^4 W