The specific heat of copper is 0.39 j/g*degrees celcius how much heat is needed to raise the temperature of 1000.0 g of copper from 25.0 degrees celsius to 45.0 degrees celcius

Aerogenerators are used to produce electricity from

An electron enters a region of space containing a uniform 2.71 * 10 - 5 2.71*10-5 T magnetic field. Its speed is 197 197 m/s and it enters perpendicularly to the field. Under these conditions, the electron undergoes circular motion.

The mass of an object with 500 J of kinetic energy moving with a velocity of 5 m/s is?

Wyatt is moving a box with a mass of 37 kg a distance of 37 meters. Wyatt did 360 J of work in 2 minutes when moving the box. What was his power output? A) 9.72 W B) 3 W C) 180 W D) 323 W

One degree kelvin equals one degree Fahrenheit? True or false

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the bulb?* A. 1.6A B. 9000 A C. 195 A D. 0.63 A

A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. Long after contact is made with the battery (a) the voltage across the capacitor is A) equal to the battery's terminal voltage.

A beam of electrons with a speed of is incident on a slit of width 200. nm. The distance to the detector plane is chosen such that the distance between the central maximum of the diffraction pattern and the first diffraction minimum is 0.300 cm.

Which element has the greatest number of valence electrons? O A. Phosphorus (P) OB. Oxygen (0) O C. Sodium (Na) O D. Magnesium (Mg)

Let r =.07 be the reserve rate. Which of the following is the money multiplier?