A room has dimensions of 6.8 meters by 6.5 meters by 3.7 meters. Air has a mass density of 1.3 kilograms per cubic meter. Using 9.8 meters per second squared for "g", the acceleration due to gravity, calculate the weight of air in the room in Newtons.
A room has dimensions of 6.8 meters by 6.5 meters by 3.7 meters. Air has a...
Question 1 (20 points) cm Your Answer Answer Question 2 (20 points) A room has dimensions of 8.4 meters by 8.3 meters by 3.8 meters. Air has a mass density of 1.3 kilograms per cubic meter. Using 9.8 meters per second squared for "g", the acceleration due to gravity, calculate the weight of air in the room in Newtons. Your Answer: Answer Question 3 (20 points)
A person who has a weight of 161 pound-force [lbf] on Earth is travelling to Mars in a spacecraft. As long as the engines on the spacecraft are not operating, the person is essentially weightless during the voyage. During a course correction, the spacecraft undergoes an acceleration of 0.68 g. The term "g" is the Earth-normal gravity, so 1 g is 9.8 meters per second squared [m/s2]. This acceleration makes it feel like there is gravity in the spacecraft, and...
At least one of the answers above is NOT correct. (1 point) A water balloon of mass 480 grams is launched with an initial (vertical) velocity of 34 meters per second. Assume air resistance is proportional to velocity with coefficient 69 grams per second, and use 9.81 meters per second squared for the acceleration due to gravity (a) Find the height of the balloon as a function of time. (-6824348e^(0.1 4375t)+34.24348)/en(0.1 437: (b) What is the terminal velocity of the...
A gun has a muzzle speed of 90 meters per second. What angle of elevation should be used to hit an object 170 meters away? Neglect air resistance and use g = 9.8 m /sec2 as the acceleration of gravity.
What total force will cause an object with a mass of 1kg to gain 10 meters per second every second? O A 1 Newton. B 9.8 Newtons. O C5 Newtons c s O D 1O Newtons. OE 2.5 Newtons. If you are told that an object that weighs 20 Newtons is raised a distance of 10 meters, you know that. O A the force of gravity on the object is 20 Newtons. O B the mass of the object is...
A hot air balloon has a volume of 20 cubic meters. If the air inside is at a temperature of 70 degrees C and the outside air has a density of 1.17 kg/cubic meter, how much lift does the balloon generate? Hint: use 29.0 grams/mole of air.
(20 points) A water truck's tank has internal dimensions of 12 meters in length and 1 meters in diameter. If the truck's load of pure water is 70 percent of full capacity, how heavy is the load in pounds? Water's density is 62.4 lb/ft3 lbs In kilograms, what is the weight of the load if the truck carries liquid nitrogen instead of water? The liquid nitrogen's density is 0.808 g/ml. kg
A girl of mass m1=60.0 kilograms springs from a trampoline with an initial upward velocity of vi=8.00 meters per second. At height h=2.00 meters above the trampoline, the girl grabs a box of mass m2=15.0 kilograms. (Figure 1) For this problem, use g=9.80 meters per second per second for the magnitude of the acceleration due to gravity. A girl of mass m1=60.0 kilograms springs from a trampoline with an initial upward velocity of vi=8.00meters per second. At height h=2.00 meters...
A ?typical? astronaut has a weight of 35 pounds-force on the moon. What is the weight of the astronaut on Mars, in units of pounds-force? The gravity on Mars is 3.7 meters per second squared.
(1 point) A water balloon of mass 380 grams is launched with an initial (vertical) velocity of 43 meters per second. Assume air resistance is proportional to velocity with coefficient 5 grams per second, and use 9.81 meters per second squared for the acceleration due to gravity. (a) Find the height of the balloon as a function of time. h(t) = (b) What is the terminal velocity of the balloon? (Enter your answer as a positive velocity.) The terminal velocity...