Physics Properties Of Matter Level: Misc Level
Using the value of atmospheric pressure at sea level,1.0 x 105 pa,estimate the total mass of the earth,s atmosphere above a 5 m2 area.
Physics Properties Of Matter Level: Misc Level
How much force does the atmosphere exert on one side of a vertical wall 4.0 m highand 10 m long?
Physics Properties Of Matter Level: Misc Level
The average density of the material in intergalactic space is approx. 2.5x10-27 kg/m3. What is the volume of gold sample, p=19,300 kg/m3, that has the same mas as 8.0 x1024 m3 of intergalactic space?
Physics Properties Of Matter Level: Misc Level
At standard temperature and pressure, carbon dioxide has a density of 1.98 kg/m3. What volume does 0.85 kg of carbon dioxide occupy at standard temperature and pressure?
Physics Waves And Oscillations Level: Misc Level
In a clock, the pendulum length, L1, has a period T1=0.95 s. The length of the pendulum is adjusted to a new value, L2, such that T2=1.0 s. What is the ratio L2/L1?
Physics Waves And Oscillations Level: Misc Level
The position of a simple harmonic oscillator is given by x (t)=(0.5m) cos (nt/3), where t is in seconds. What is the period of the oscillator?
Physics Force & Laws Of Motion Level: Misc Level
A favorite piece of exercise equipment consists of various springs.In one exercise, a person pulls a handle grip attached to the free end of a spring to 0.80 m from the unstrained position. The other end of the spring (spring constant is 53 N/m) is held in place by the equipment from. What is the magnitude of the force that is applied to the handle grip?
Physics Rotational Mechanics Level: Misc Level
A 60 kg skater begins a spin with an angular spin speed of 6 rad/s. By changing the position of her arms, the skater decreases her moment of inertia by 50%. What is the skater,s final angular speed?
Physics Rotational Mechanics Level: Misc Level
A 1 kg wheel in the form of a solid disk rolls along a horizontal surface with a speed of 6 m/s. what is the total kinetic energy of the wheel?
Physics Rotational Mechanics Level: Misc Level
A string is wrapped around a pulley of radius 0.10 m and moment of inertia 0.15 kg * m2. The string is pulled with a force of 12 N. what is the magnitude of the resulting angular acceleration of the pulley?
Physics Rotational Mechanics Level: Misc Level
A 50 N * m torque acts on a wheel of moment of inertia 150 kg *m2.If the wheel starts from rest, how long will it take the wheel to make one revolution?
Physics Rotational Mechanics Level: Misc Level
A meter stick is pivoted at the 0.50-m line.A 3-kg object is hung from the 0.10-m line. Where should a 5-kg object be hung to achieve equilibrium?
Physics Circular Motion Level: Misc Level
A car is moving on a horizontal road at a constant velocity that is directed 45% south of east. What is the direction of the angular velocity of the wheels?
Physics Circular Motion Level: Misc Level
Two motorcycles are riding a circular track at the same angular velocity. One is at a radius of 15 m and the second is at a radius of 18 m. What is the ratio of their linear speeds, v2/v1?
Physics Rotational Mechanics Level: Misc Level
A ball attached to a string starts at rest and undergoes a constant acceleration as it travels in a horizontal circle of radius 0.30 m.After 0.65 sec, the angular speed is 9.7 rad.s, what is the tangential acceleration of the ball?
