2. Why was it important to examine both the color and the streak of your minerals? Think about streak and explain why it's called a mineral's "true color". Answer in at least 2 sentences.

Patty makes a table of the symbols used for the parts of an electric circuit. What label should Patty place in the marked cell? Battery Switch Resistor Bulb

A motorist driving a 1000-kg car wishes to increase her speed from 20 m/s to 30 m/s in 5 s. Determine the horsepower required to accomplish this increase. Neglect friction.

A train is moving on a flat, continuous track. label all forces acting upon the object

A spring is compressed 1.5 meters and has a spring constant of 65 N/m. a) How much force is involved in compressing the spring? b) How much energy does the spring store? c) How high could it potentially launch a 0.10 kg projectile?

Which would be the most reliable source of information about the weather

A uniform, thin, solid door has height 2.20 m, width 0.870 m, and mass 23.0 kg. (a) find its moment of inertia for rotation on its hinges. (b) is any piece of data unnecessary

How does wavelength and frequency affect the speed?

A cyclist turns a corner with a radius of 37 m at a speed of 22 m/s. What's the cyclist acceleration? If the cyclist and cycle have a combined mass of 90 kg, what is the force causing them to turn?

A gas had a initial volume of 168 cm at a temperature of 255 k and a pressure of 1.6 atm the pressure of the gas decreased to 1.3 atm and the temperature of the gas increases to 285 k

A train travels 90 kilometers in 1 hours, and then 60 kilometers in 3 hours. What is its average speed