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A spherical balloon has a radius of 12.0 m, and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 1000 kg? Neglect the bouyant force on the cargo volume itself.
___Kg
Calculate the final equilibrium temperature assumning no heat loss after mixing occurs.
A 65kg, 1.70m tall person is standing in a room, Find the air temperature at which the heat transfer rate by radiation is just balanced by the rate of heat generation
An initially motionless test car is accelerated uniformly to 145 km/h in 8.28 seconds before striking a simulated deer. The car is in contact with the faux fawn for 0.455 seconds, after which the car is measured to be traveling at 60.0 km/h.
A crate pushed along the floor with velocity slides a distance after the pushing force is removed. what distance does the crate slide before stopping
Two long, parallel wires carry currents of 0.245 A in the same direction. If the wires are 0.034 m apart, what is the force per unit length between the wires
The position of a car at t= 20 min is x= 12 km. Its position is 69.6km when t=60min. Find the average velocity of the car
A cannon is launched at an angle of 45.00 and the cannon ball lands 301 m away. How long was the cannon ball in the air
batted straight back to Lonnie with a return speed of 60 m/s. If the bat is in contact with the ball for .050 s, illustrate what is the impulse experienced by the ball.
q1. the magnitude of the gravitational force between two sumo wrestlers just before they collide r 0.025 m is 2.77
A block with mass m = 4 kg is sitting on the ground and not moving. The acceleration due to gravity is g = 9.81 m/s2. Please answer the following questions.
The antenna for an AM radio station is a 75-m-high tower that is equivalent to one-quarter wavelength, At what frequency does the station transmit
The measured conductivity of Cu at Room Temperature is 5.88 x 107/ohm.m and the Fermi energy for Cu is 7.03 eV, Find the mean free path( mfp) of electrons in copper
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