A spaceship's orbital maneuver requires a speed increase of 1.45 ✕ 103 m/s. If its engine has an exhaust speed of 2.00 ✕ 103 m/s, determine the required ratio Mi Mf of its initial mass to its final mass. (The difference Mi − Mf equals the mass of the ejected fuel.)
A spaceship's orbital maneuver requires a speed increase of 1.45 ✕ 103 m/s. If its engine...
A spaceship's orbital maneuver requires a speed increase of 1.30 ✕ 103 m/s. If its engine has an exhaust speed of 2.30 ✕ 103 m/s, determine the required ratio Mi/Mf of its initial mass to its final mass. (The difference Mi − Mf equals the mass of the ejected fuel.)
PLEASE SHOW YOUR WORK A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.4 g, which includes fuel mass of 12.5 g. The duration consumed.) of its burn is 1.90 s. (Assume all the fuel is (a) What is the average exhaust speed of the engine? m/s (b) This engine is placed in a rocket body of mass 44.5 spacewalk? Assume the fuel burns at a constant rate. g. What is the...
Problem 1 A model rocket has engine with an average thrust of 6.92 N. The rocket mass is 72.5g,which includes fuel mass 22.3 g. The duration of fuel burning is 2.52 s a) What is the average exhaust speed v, of the engine? (12 points) b) What is the final speed i of this rocket if it were to be fired from International Space Station with initial speed v-7660 m/s? Assume the fuel burns at a constant rate (13 points)...
Suppose a 3950-kg space probe expels 3300 kg of its mass at a constant rate with an exhaust speed of 1.85 × 103 m/s. show answer No Attempt Calculate the increase in speed, in meters per second, of the space probe. You may assume the gravitational force is negligible at the probe’s location. Δv =
A spaceship with a mass of 5.50 104 kg is traveling at 6.16 103 m/s relative to a space station. What mass will the ship have after it fires its engines in order to reach a speed of 7.78 103 m/s? Assume an exhaust velocity of 4.69 103 m/s.
A satellite is in orbit about Earth. Its orbital radius is 5.56×107 m. The mass of the satellite is 8541 kg and the mass of Earth is 5.974×1024 kg. Determine the orbital speed of the satellite in mi/s. 1 mi/s = 1609 m/s.
A shuttlecraft is initially moving at 96.0 m/s as it travels in deep space. The mass of the shuttle given its current fuel level is approximately 6.41 ✕ 106 kg. When the shuttle fires its rockets to move faster, the speed of the exhaust leaving the rockets is 2900 m/s. What is the mass of the fuel necessary to get the shuttlecraft up to a final speed of 130 m/s? A shuttlecraft is initially moving at 96.0 m/s as...
A small workboat is fitted with a diesel engine that develops its maximum power of 300 kW with a corresponding specific fuel consumption of 0.21 kg/kW h. At maximum power, the air-fuel ratio of the engine is 20 and the exhaust pressure is 1.01 bar. It is proposed to provide hot water for the vessel by using a shell and tube heat exchanger to extract waste heat from the engine exhaust gases. Calculate the: (i) tube length required. The following...
2- A motorboat cuts its engine when its speed is 12 m/s and then coasts to rest. The equation describing the motion of the boat is V = Vi.e-, where c is a constant. At t = 25s, the speed is 5m/s. a. Find the constant c b- Find the speed at t = 40s 5. A block of mass 4 kg is attached to a spring of force constant k = 400 N/m and placed on a table, the...
Calculate the final speed of an object if its initial speed is 10 m / s. The object has a mass of 5 kg. Initially, it has a height of 20 meters, and it goes down to a height of 15 m. There are no dissipative forces on the object.