What is the recommended amount of time that a teenager should be participating in physical activity

A: 30 min

B: 60 min

C: 45 min

D: 15 min

What way do winds push warm water of the Pacific Ocean during El Nino year?

1. What is true about all forces? a. They are unbalanced b. They involve more than one object c. They cause objects to moved. d. They cancel each other out

A car is traveling at 52.4 km/h on a flat highway. The acceleration of gravity is 9.81 m/s2. a) If the coefficient of kinetic friction be- tween the road and the tires on a rainy day is 0.

Differnces of similarities between light and sound

Use the five rules to determine the validity of this categorical syllogism: All neutron stars are things that produce intense gravity. All neutron stars are extremely dense objects.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

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

A body has translatory motion if it moves along a

What is Nothing. (sorry i have been wondering this for a very long time)