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The temperature of a gas is increased from 150k to 600k in a balloon. If pressure is kept constant, how does the colume of the balloon change?
A. V quadruplesB. V doublesC. V stays the sameD. V triples
a coil that has a resistance r and an inductance l has a power factor equal to 0.866 when driven at a frequency of
A projectile is fired at an upword angle of 45.0 degrees from the top of a 265-m cliff with a speed of 185 m/s. What will be its speed when it strikesthe ground below
A light bulb is placed 13.6 cm in front of a concave mirror. When the concave mirror is replaced by a plane mirror in the same location, Calculate the focal length of the concave mirror
A net force of 20 N accelerates a 9-kg mass over a distance of 20 m. What is the increase in kinetic energy of the mass
How fast would javelin (normally 2.5 m long) have to be going (relative to an observer) to appear 20% shorter? (2 m long)
When a falling meteor is at a distance above the Earth's surface of 2.82 times the Earth's radius, what is its free-fall acceleration caused by the gravitational force exerted on it
A large ice block of mass M = 80 kg is held stationary on a frictionless ramp. The ramp is at an angle0f θ =36.87o above horizontal. If the ice block is held in place by a horizontal force, directed horizontally toward the center of the ice block, th..
Two equally charged particles, held 22.4 cm apart, are released from rest. The initial acceleration of the first particle is observed to be 4.0 m/s2 and that of the second particle is 6.0 m/s2.
how much time passes before the police car overtakes the speeder after the speeder passes (assumed moving at constant speed).
Above graph shows the data collected by a student who wanted to find the resistance of an unknown resistor. Questions below are based on the graph and his experiment. What is the law he can probably use in the above experiment?
At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 810 m/s2, find the magnitude of the net force acting on the soccer ball
The left ventricle of the heart accelerates blood from rest to avelocity of +27cm/s. If the displacement of the blood during the acceleration is +1.8 cm, determine its acceleration (incm/s2).
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