Physics, 27.08.2020 09:01 stephanie1105
The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-5.55 107) t ^2 + (3.35 105) t, where v is in meters per second and t is in seconds. The acceleration of the bullet just as it leaves the barrel is zero. (a) Determine the acceleration and position of the bullet as a function of time when the bullet is in the barrel. (Use t as necessary and round all numerical coefficients to exactly 3 significant figures.) (b) Determine the length of time the bullet is accelerated. (c) Find the speed at which the bullet leaves the barrel. (d) What is the length of the barrel?
Answers: 2
Physics, 21.06.2019 23:20
Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?
Answers: 1
Physics, 22.06.2019 12:00
Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?
Answers: 3
Physics, 22.06.2019 12:30
Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?
Answers: 1
The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-...
History, 19.09.2019 05:00
History, 19.09.2019 05:00
Mathematics, 19.09.2019 05:00
English, 19.09.2019 05:00
History, 19.09.2019 05:00
Business, 19.09.2019 05:00
Mathematics, 19.09.2019 05:00
Mathematics, 19.09.2019 05:00
Mathematics, 19.09.2019 05:00
Mathematics, 19.09.2019 05:00
Mathematics, 19.09.2019 05:00