All protons in a vacuum have the same

1) Speed

2) Wavelength

3) Energy

4) Frequency

What is the current in a 60.0 Ï resistor when the potential difference across it is 120.0 v?

2. A biologist measures the speed of a swimming amoeba. The amoeba covers a distance of 17.36 microns in 30 seconds.

The temperature of 5 pounds of water is 40 degrees. Btus are added until the temp of the steam produced rises to 280 degrees Fahrenheit. How many btus are absorbed by the water The temperature of 15 pounds of ice is 32 degrees Fahrenheit.

When two objects of different masses, different temperatures, and different sizes are placed in thermal contact, energy will always travel a. from the hotter object to the cooler object b. from the bigger object to the smaller object C.

Which characteristic does an object with a constant acceleration always have?

What's the difference between the resistance of 1,000 feet of aluminum No. 14 wire and 1,000 feet of No. 14 copper wire? A. The aluminum has 0.84 ohms more resistance. B. The aluminum has 2.66 ohms more resistance. C. The copper has 0.

Discuss the use of headrests in the seats in a car in terms of newtons laws. Use terms and provide a comprehensive in depth answer with references.

Larry's gravitational potential energy is 1870Jas he sits 2.20 m above the ground in a sky diving airplane. What is Larry's gravitational potential energy when he begins tojump from the airplane at an altitude of 923m?

Which travels faster in helium, copper or lemonade?

In order for a boat to float, its weight must have a magnitude equal to the