A 25.0-meter length of platinum wire with a cross-sectional area of 3.50 * 10^-6 meter^2 has a resistance

of 0.757 ohm at 20°C. Calculate the resistivity of the wire. [Show all work, including the equation and

substitution with units.]

Holding a book while walking means i am doing work on the book. true or false

Which of the following processes start with a material that is in a fluid or semifluid state and solidifies the material in a cavity (two best answers) : a. pressing b. forging c. casting d. machining e. turning f. molding

What is the closest planet to earth that scientist think can support life?

Where in the motion is the magnitude of the net force on the object a maximum? where in the motion is the speed a maximum?

A capacitor is connected to an ac generator that has a frequency of 2.3 kHz and produces a rms voltage of 1.5 V. The rms current in the capacitor is 31 mA. When the same capacitor is connected to a second ac generator that has a frequency of 4.

Emily jogs 3 laps at the track to warm up. She jogs at 5 mph. Then she runs 3 more laps at 7 mph. What is true about her average speed and her average velocity?

Which of the following elements are the most reactive? beryllium, calcium, magnesium, barium?

1.) State which definition of power below is correct. A.) the energy transferred per hour. B.) the energy transferred. C.) the energy transferred per second. D.) the force over a distance. 2.

Science and technology are closely related, but not the same. Which of the following is most likely a result of technology, not science?

Ashlee pours some quantity of orange juice in a glass. She accidentally breaks the glass and juice spills all over the floor. Which characteristic of the juice will change? A. mass B. State C. Shape D. Volume