Arocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 56.6 × 105 kg, of which 8.50 × 105 kg is fuel. the rocket engine is then fired for 240 s, during which fuel is consumed at the rate of 350 kg/s. the speed of the exhaust products relative to the rocket is 2.38 km/s.
(a) what is the rocket's thrust? after the 240 s firing, what are
(b) the mass and
(c) the speed of the rocket?
Answers: 1
= Mass of ship = 56.6×10⁵ kg
= Speed of the exhaust products relative to the rocket = 2.37 km/s
Another question on Physics
Physics, 21.06.2019 15:30
Which would not reduce the amount of green house gasses in the air
Answers: 1
Physics, 22.06.2019 17:40
Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
Physics, 22.06.2019 18:30
In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
Physics, 22.06.2019 22:20
A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.
Answers: 1
You know the right answer?
Arocket, which is in deep space and initially at rest relative to an inertial reference frame, has a...
Questions
History, 13.04.2020 02:29
Mathematics, 13.04.2020 02:29
English, 13.04.2020 02:30
Mathematics, 13.04.2020 02:30
Mathematics, 13.04.2020 02:30
English, 13.04.2020 02:30
Mathematics, 13.04.2020 02:30
English, 13.04.2020 02:30
Social Studies, 13.04.2020 02:30
