subject
Physics, 14.09.2019 11:20 jamarhroul

Aspelunker is surveying a cave. she follows a passage 180 m straight west, then 230 m in a direction 45° east of south, and then 280 m at 30° east of north. after a fourth unmeasured displacement, she finds herself back where she started. a: use a scale drawing to determine the magnitude of the fourth displacement. express your answer using two significant figures.
b: determine the direction of the fourth displacement. express your answer using two significant figures.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 17:30
Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.
Answers: 1
question
Physics, 22.06.2019 07:30
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
question
Physics, 22.06.2019 20:50
An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)
Answers: 1
question
Physics, 22.06.2019 22:00
Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.
Answers: 2
You know the right answer?
Aspelunker is surveying a cave. she follows a passage 180 m straight west, then 230 m in a direction...
Questions
question
Spanish, 08.06.2021 17:10
question
Mathematics, 08.06.2021 17:10
Questions on the website: 13722362