A rocket, launched from the Earth, shuts off its engines when its speed is 4.90 km/s....

A rocket, launched from the Earth, shuts off its engines when its speed is 4.90 km/s. It reaches a maximum altitude H of 2790 km before it falls back to Earth. At what altitude l did the rocket's engines shut off? The mass, radius, and escape speed of the Earth are 5.972 x 1024 kg, 6.371 x 106 m, and 11.18 km/s respectively (4 points)

Expert Solution

genius_generous answered 2 years ago

A 790-kg two-stage rocket is traveling at a speed of 6.60×103 m/s away from Earth when...

A 790-kg two-stage rocket is traveling at a speed of 6.60×103 m/s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2.80×103 m/s relative to each other along the original line of motion What is the speed of each section (relative to Earth) after the explosion? Express your answers using three significant figures separated by a comma. V1,V2= What are the direction of each section (relative...

A 720-kg two-stage rocket is traveling at a speed of 6.90×10^3 m/s away from Earth when...

A 720-kg two-stage rocket is traveling at a speed of 6.90×10^3 m/s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2.10×10^3 m/s relative to each other along the original line of motion.What is the speed of each section (relative to Earth) after the explosion? R/= v1=5850, v2=7950. How much energy was supplied by the explosion? [Hint: What is the change in kinetic energy as a...

When the rocket is on earth and lifting off and burning fuel, which of the following...

When the rocket is on earth and lifting off and burning fuel, which of the following is or are conserved? Mark all that apply and provide a brief 1-2 sentence justification of your choices.  Momentum of the rocket  Mechanical energy of the rocket  Momentum of the rocket + exhaust + Earth system  Mechanical energy of the rocket + exhaust + Earth system When the rocket no longer burns fuel (but is still near Earth), which of...

A circular rock 5 km in radius hits the earth head-on, at speed 36 km/s. The...

A circular rock 5 km in radius hits the earth head-on, at speed 36 km/s. The rock's density is 3 g/cm3. The earth's mass is 6*1024 kg. Treating the earth as initially stationary, calculate its final in speed due to the impact. Because of the system's trouble with small numbers, calculate the speed in μm/s -- the distance unit is the micron or micrometer, 10-6 meter. I am so confused on where to start, like is the rocks density m2...

A model rocket is launched straight upward with an initial speed of 42.0 m/s. It accelerates...

A model rocket is launched straight upward with an initial speed of 42.0 m/s. It accelerates with a constant upward acceleration of 2.50 m/s2 until its engines stop at an altitude of 160 m. (a) What can you say about the motion of the rocket after its engines stop?. (b) What is the maximum height reached by the rocket? (c) How long after liftoff does the rocket reach its maximum height? (d) How long is the rocket in the air?

a model rocket is launched straight upward with an innitial speed of 11.0 m/s. it accelerates...

a model rocket is launched straight upward with an innitial speed of 11.0 m/s. it accelerates with a constant upward acceleration of 22 m/s^2 until its engines stop 3.0 seconds later. it then continues on as a free fall particle until it hits the ground. (a) draw and label a diagram of the above and below information (b) find the velocity (in m/s ) of the rocket at the instant it runs out if fuel. (c)find the max height (in...

[10 pts] A model rocket is launched from a raised platform at a speed of 120...

[10 pts] A model rocket is launched from a raised platform at a speed of 120 feet per second. Its height in feet is given by h(t) = -16t^2 +120 t + 32 where t represents seconds after launch. a. [3 pts] After how many second does the object reach its maximum height? Use the vertex formula. b. [2 pts] Use the previous result to find the maximum height reached by the rocket. c. [5 pts] After how many second...

A space vehicle is traveling at 4300 km/h relative to earth when the exhausted rocket motor...

A space vehicle is traveling at 4300 km/h relative to earth when the exhausted rocket motor (mass 4m) is disengaged and sent backward with a speed of 82 km/h relative to the command module (mass m).a) What is the speed of the space vehicle after the engine has separated relative to earth? b) What is the speed of the command module relative to earth just after the separtaion.

A rocket is launched at an angle of 60.0° above the horizontal with an initial speed...

A rocket is launched at an angle of 60.0° above the horizontal with an initial speed of 99 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 29.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find the maximum altitude reached by the rocket. Find its total time of flight. Find its horizontal range.

A rocket is launched at an angle of 50.0° above the horizontal with an initial speed...

A rocket is launched at an angle of 50.0° above the horizontal with an initial speed of 95 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 29.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. (a) Find the maximum altitude reached by the rocket. (b) Find its total time of flight. (c) Find its horizontal range. (c) Find its horizontal range.

Question