An ant carries food at a speed of 1 cm/s. how long will it take the ant to carry a cookie crumb from the kitchen table to the ant hill, a distance of 50 m? express your answer in seconds, minutes and hours.

When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive