SCUBA diver Dave drives his boat across the lake to pick up a water-proof surpri
ID: 1866238 • Letter: S
Question
SCUBA diver Dave drives his boat across the lake to pick up a water-proof surprise birthday present for this sister (picture #1 at the left) fter he has picked up the large heavy water-proof crate containing the gift, he begins to drive back across the lake (picture #2). #2 But then he realizes his sister might see the gift in his boat, and so he stops the boat and hides the gift underhis boat suspended by cables (picture #3). (He will pull it out later just before her birthday party.) #3 . , The following questions refer to the previous story 40. When the crate is UNDER the boat (picture #3), the water displaced is equal to a. the combined weight of the boat and the crate. b. .. the combined volume of the boat and the crate c. . . . the weight of the boat plus the volume of the crate. d. .. the yolume of only the crate e. the weight of only the crate. I ..! When the crate is UNDER the boat (picture #3), the vertical #3lJta AAL forces on the system are .. a. in equilibrium (EF 0. b. NOT in equilibrium (2F+0) 2.. When the crate is INSIDE the boat (picture #2), the vertical #2 forces on the system are a. in equilibrium (EF -0) b. NOT in equilibrium (EF +0). when the crate is UNDER the boat (picture #3), the buoyancy force on the system is equal to the , #3 weight of the only the crate b. combined weight of the boat and the crate. ? The boat will sit lower in the water when the a. boat is empty. (picture # 1) c. crate is UNDER the boat. (picture #3) c weight of the only the boat. b. crate is INSIDE the boat. (picture #2)Explanation / Answer
40. Only option (a) is correct because Archimedes Principle says that any body fully or partily submerged in liquid will face an upward buoyant force that is equal to weight of fluid displaced.
1. Option (a) is correct because boat keeps floating that means its weight and crate weight is equal to buoyant force.
2. Option (a) is correct reason is as same as 1
3. Option (b) is correct reason is same as 40
4.The boat will sit lower when the crate is inside the boat hence option (b) is correct
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.