With a power supply able to produce 125 a of current, how long must the nails stay in the electrolysis chamber to receive 1.33*107 c of charge?

Which best describes the relationship between humidity and air pressure? Humid air has higher pressure because of the heaviness of water. Humid air is lighter, so it has lower pressure. Air pressure is lower below sea level because of the humidity.

What happens to the density of a substance as its temperature increases?

What are elementary particles? Why is the study of these particles essential to providing evidence for cosmological theories?

Scientists launch a rocket, and they monitor its acceleration and the force exerted by its engines. As the rocket gets higher, the monitors show that the acceleration of the rocket is increasing but the force exerted stays the same.

Which of the following electromagnetic waves is not used for communication? A gamma rays B microwaves C infrared waves D radio waves

From whom should a departing VFR aircraft request radar traffic information during ground operations?

A stone is thrown at an angle of 30.0 degrees above the horizontal from the top edge of a cliff with an initial speed of 15 m/s. A stopwatch measures the stone's trajectory time from the top of the cliff to the bottom at 6.30 s.

A particular solid is electrically charged after it is rubbed, but it is not known whether its charge is positive or negative. How could you determine which charge it has by using a piece of plastic and fur?

A mass of 5 kg is moving at 5 m/s when it collides with another mass of 2 kg moving in the same direction at 2 m/s. After the collision they become bonded together. What is the final velocity of the two masses together? 2.22 m/s 6.23 m/s 3.56 m/s 4.

The process of developing a sense of identity during adolescence was highlighted by