Why is reaching activation energy necessary?

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

Which of these is a TRUE statement? A) Sound travels through gases easier than liquids. B) Sound travels through solids easier than liquids. C) Sound sometimes travels easier through gases than solids.

During a total lunar eclipse, the Earth, Sun, and Moon are arranged in a line, and the Moon is completely dark. In what order do the Earth, Sun, and Moon line up?

A projectile is shot from the edge of a cliff 170 m above ground with an initial speed of 75.0 m/s at an angle of 24° below the horizontal. How much time does it take the projectile to hit the ground?

The Vernal Equinox is the shortest day of the year. Question 8 options: True False

A spring tide can occur at what day and month?

For a given launch velocity, at which launch angle does the projectile undergo the maximum horizontal displacement

Electric force is blank proportional to the amount of charge and blank proportional to the square of the distance between the charges

What happens in the gray zone between solid and liquid?

Which statement describes Newton's law of universal gravitation? Mass has hittle effect on gravity between objects. Gravity pushes objects away from Earth's center, Gravity does not act between Earth and the moon.