According to information received from radio telescopes, where is our sun positioned in the milky way? a. at the exact center of the galactic nucleus b. just outside the galactic nucleus c. at the tip of one of the spirals d. within one of the

The refractive index of light passing from air to water is 4/3 and air to glass is 3/2. Calculate the refractive index of glass relative to water

Use Hooke's Law to determine the work done by the variable force in the spring problem. Nine joules of work is required to stretch a spring 0.5 meter from its natural length. Find the work required to stretch the spring an additional 0.40 meter.

The slope of a displacement vs. time graph gives a. distance b. velocity c. acceleration d. displacement

1. Productivity is the combination of A. efficiency and energy B. efficiency and attitude C., effectiveness and resources. D. efficiency and effectiveness

Mr. Polifka does a demonstration in science class. He holds an unlit match six inches above a candle flame. After a while, the match bursts into flame.

What is a circuit, s resistance if 12v produces 2A of current?

Dinosaur fossils are too old to be reliably dated using carbon-14, which has a half-life of about 5730 years. Suppose we had a 68 million year old dinosaur fossil.

A power station delivers 510 kw of power at 12,000 v to a factory through wires of total resistance of 2.5 ω. how much less power is wasted if the electricity is delivered at 47,000 v rather than 12,000 v?

Two spaceships of mass 300,000 kg are 250 m apart. what is the force of gravity between them? (G = 6.67 times 10⁻¹¹ N*M²/kg²)

Air pressure is 1.0 · 105 N/m2, air density is 1.3 kg/m3, and the density of soft drinks is 1.0 · 103 kg/m3. If one blows carefully across the top of a straw sticking up 0.