What is the average power output of the drone when it is hovering at a fixed...
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What is the average power output of the drone when it is hovering
at a fixed...
Question 2. Deep sea drones are used to explore the bottom of the ocean. The drone...
Question 2. Deep sea drones are used to explore the bottom of the ocean. The drone is allowed to sink using its weight force, however if the drone hits the ocean floor with a high velocity the operational camera will break. Hence the velocity of the sinking drone should be less than 4 m/s when hitting the ocean floor. The weight force is countered by drag and buoyancy (See Figure 1). Drag is directly proportional to velocity i.e. D =...
A parachutist whose mass is 60 kg drops from a helicopter hovering 1000 m above the...
A parachutist whose mass is 60 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b 30 N-sec/m when the chute is closed and b2 100 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 15 m/sec, after...
A parachutist whose mass is 65 kg drops from a helicopter hovering 1500 m above the...
A parachutist whose mass is 65 kg drops from a helicopter hovering 1500 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b 20 N-sec/m when the chute is closed and b2 90 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 25 m/sec, after...
A parachutist whose mass is 80 kg drops from a helicopter hovering 2500 m above the...
A parachutist whose mass is 80 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of grevity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportonality constant b,-30 N secim when the chute is closed and b2 100 N sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 20 m/sec,...
Canvas D | Question 23 4 pts re package is dropped from rest from a helicopter hovering 59 m abov...
Canvas D | Question 23 4 pts re package is dropped from rest from a helicopter hovering 59 m above the ground. What is the speed of the package just before it reaches the ground? Neglect air resistance. D Question 24 5 pts A baseball of mass 1.38 kg initially at rest, is struck by a bat so that it acquires a speed 10 m/s. Determine the duration of the collision between the bat and the ball (in seconds). if...
The average wind speed is 6 m/s at a 10-m-high anemometer. Estimate the average power density...
The average wind speed is 6 m/s at a 10-m-high anemometer. Estimate the average power density in the wind at a height of 80 m. Assume Rayleigh statistics, a standard friction coefficient α = 1/7, and standard air density ρ = 1.225 kg/m3.
Find the power production (in MW) of a 25 m radius wind turbine if the average...
Find the power production (in MW) of a 25 m radius wind turbine if the average wind speed is 12 m/s and the efficiency of this turbine in converting kinetic energy of air to mechanical work is 10%? The density of air is 1.20 kg/m3 .
d play a) A 6.5 x 10 6 kg at a 1.8 m/s2 rate. What magnitude...
d play a) A 6.5 x 10 6 kg at a 1.8 m/s2 rate. What magnitude force must 15 uttle applies its brakes with the intent of slowing down b) Usain Bolt has a mass of 94 k the ground for 0.25 s, what is the magnitude of the friction force th forward? g. If he accelerates from rest to 2.4 m/s while his foot is on at pushes him Drones are becoming quite maneuverable. In a tight circular turn,...
its the power output in KW In a power plant, steam enters a turbine steadily at...
its
the power output in KW
In a power plant, steam enters a turbine steadily at 10 MPa and 600°C with a velocity 65 m/s and leaves at 125 kPa with a 96 percent quality. A heat loss of 22 kJ/kg occurs during the process. The inlet area of the turbine is 140 cm². Determine (a) the mass flow rate of the steam and (b) the power output.
A spherical raindrop of mass 0.00985 g and radius 1.33 mm falls from a cloud that...
A spherical raindrop of mass 0.00985 g and radius 1.33 mm falls from a cloud that is at a height of 1299 m above the ground. Assume the drag coefficient for the raindrop is 0.60 and the density of the air is 1.3 kg/m3. What is the raindrop's terminal speed? Please describe a steps
Question 2. Deep sea drones are used to explore the bottom of the ocean. The drone is allowed to sink using its weight force, however if the drone hits the ocean floor with a high velocity the operational camera will break. Hence the velocity of the sinking drone should be less than 4 m/s when hitting the ocean floor. The weight force is countered by drag and buoyancy (See Figure 1). Drag is directly proportional to velocity i.e. D =...
A parachutist whose mass is 60 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b 30 N-sec/m when the chute is closed and b2 100 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 15 m/sec, after...
A parachutist whose mass is 65 kg drops from a helicopter hovering 1500 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b 20 N-sec/m when the chute is closed and b2 90 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 25 m/sec, after...
A parachutist whose mass is 80 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of grevity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportonality constant b,-30 N secim when the chute is closed and b2 100 N sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 20 m/sec,...
Canvas D | Question 23 4 pts re package is dropped from rest from a helicopter hovering 59 m above the ground. What is the speed of the package just before it reaches the ground? Neglect air resistance. D Question 24 5 pts A baseball of mass 1.38 kg initially at rest, is struck by a bat so that it acquires a speed 10 m/s. Determine the duration of the collision between the bat and the ball (in seconds). if...
d play a) A 6.5 x 10 6 kg at a 1.8 m/s2 rate. What magnitude force must 15 uttle applies its brakes with the intent of slowing down b) Usain Bolt has a mass of 94 k the ground for 0.25 s, what is the magnitude of the friction force th forward? g. If he accelerates from rest to 2.4 m/s while his foot is on at pushes him Drones are becoming quite maneuverable. In a tight circular turn,...
its
the power output in KW
In a power plant, steam enters a turbine steadily at 10 MPa and 600°C with a velocity 65 m/s and leaves at 125 kPa with a 96 percent quality. A heat loss of 22 kJ/kg occurs during the process. The inlet area of the turbine is 140 cm². Determine (a) the mass flow rate of the steam and (b) the power output.
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