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A tank having a volume of 0.11 m3 contains helium gas at 170 atm. How many balloons can the tank completely fill if each filled balloon is a sphere 36 cm in diameter at an absolute pressure of 1.2 atm?
What is the resulting compressional force on the Earth. what is the acceleration of a rock at top of its trajectory when it has been thrown straight upward.
A load of bricks is being lifted by a crane at the steady velocity of Vo (= 5 m/s) when one brick falls of H (= 5m) above the ground. What is the greatest height above the ground that the brick reaches
A 3.0 kg mass is attached to a vertical spring hanging from the ceiling. The spring and mass are stationary. The spring constant for the spring is 250 N/m. What is the gravitational potential energy of the system
A loop of area 0.100 m^2 is rotating at 3600 rpm (revolutions per minute) with an axis of rotation perpendicular to a 0.20 T magnetic field. what is the maximum voltage induced in the loop
Consider two masses that hang from an overhead beam. The first mass of 62.9 kg is attached to the beam using an ideal rope. Find the tension in the lower rope
An RLC circuit with R = 28.7 ohms, = 348 mH, and = 41.4 microfarads is connected to an ac generator with an rms voltage of 27 V. Determine the average power delivered to this circuit when the frequency of the generator is half the resonance frequency
The heat of fusion for water is 80. cal/g. How various calories of heat are released when 20.0 g of water at 30. °C is cooled to 0 °C and frozen to ice at 0 °C
A mass on a spring vibrates in simple harmonic motion at a frequency of 0.75 Hz and amplitude of 4.0 cm. what is the speed of the mass when t = 1.0 s
A 1.00 kg block Is resting against a light, compressed spring at the bottom of a rough plane inclined at an angle of 30 degrees. Kinetic friction between box and plane is 0.100. Suppose the spring is compressed 10 cm from its equilibrium length.
As the refrigerant passes through the compressor, heat transfer to the surrounding occurs at a rate of 0.32 kJ/s. Determine at steady state the power input to the compressor, in kW.
A 34.4-kg crate rests on a horizontal floor, and a 71.8-kg person is standing on the crate. Determine the magnitude of the normal force that the floor exerts on the crate
A bas traveling at 25.0 m/s applies the brakes and decelerates uniformly at a rate of 1.2 m/s ? What is its velocity at the end of this time interval
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