A startled moth is trying to evade a hungry bat hot on its trail, 3.00 m behind it. (a) What would be the time delay in the bat emitting an ultrasonic pulse and receiving the echo for air temperatures of 5.00 ◦C and 35.00 ◦C? (b) Use this range to express the percent uncertainty in locating the moth. Comment.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?