If you want to lift a 5-kg box to a height of 2 meters, how much work must be

done?

O A. 2J

O B. 50 J

O C. 98 J

O D. 100

3. Which form of radiation is used to kill microorganisms? a. microwaves b. visible light c. infrared rays d. ultraviolet rays

A stone is dropped from a bridge and hits the pavement below in 2 seconds. what is the velocity of the stone when it hits the pavement

Tp-15 water current has the greatest effect on which type of boat?

Distinguished scholars are usually attracted to teaching at a

The slope of the line on distanc-time graph is A. Distance B. Time C. Speed D. Displacement

The act, process or state of the change in place or position oa a body with respect to time and relative to the observer is said to be : - 1. Rest 2. Stationary 3. Motion 4. None of the above

During a snowball fight two balls with masses of 0.4 kg and 0.6 kg, respectively, are thrown in such a manner that they meet head on and combine to form a single mass of 1 kg. the magnitude of intial velocity foreach is 15 m/s.

Which phases of matter do molecules have the lowest amount of energy?

How many Oxygen (O) atoms are in the following? H2O + CO2 4 3 2

How does surface roughness affect friction