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The detectors on the rocket record the flashes from both guns as simultaneous events. Determine the x component of the rocket's velocity in units of m/s.
A flat sheet of crown glasshas a thickness of 2.2cm. It is on top of a flat sheet ofcrystalline quartz that has a thickness of 3.5cm. Light strikes the crown glass perpendicularly and travels throug
A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point17.9m below the water level. The rate of flow from the leak is 2.90 x 10-3
Calculate the friction force needed on a train passenger of mass 65 if the track is not banked and the train does not tilt.
When a person inhales, air moves down the bronchus (windpipe) at14cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the
A 2.6-mF capacitor is discharged through a 4.5-kΩ resistor. How long will it take for the capacitor to lose half its initial stored energy?
A sample of an unknown material appears to weigh 280 N in air and 175 N when immersed in alcohol of specific gravity 0.700.(a) What is the volume of the material? (b) What is the density of the mate
What are the focal lengths and separation of the two lenses? (You may assume they are thin)
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.20 cm into the river. What is the weight of the truck?
Solar panels are priced based on the number of kilowatts they generate. You pay the utility an amount based on the number of kilowatt-hours you use. What is the connection between kW and kW·h
How far should the lens be from the LCD (be sure to keep at least 3 significant figures throughout your calculations)?
A ball has a diameter of 3.90 cm and average density of 0.0844g/cm3. What force is required to hold it completely submerged under water? and whats is the direction ?
A 0.75-kg mass moving with a speed of 5.0 m/s encounters a 0.25-kg mass moving in the opposite direction with speed 5.0 m/s. Assume the objects collide in an elastic collision where no energy is los
If the charge on the plates is adjusted until the bead is stationary (doesn't fall due to gravity), what is the resulting electrostatic potential difference between the plates?
What is the total momentum before the collision? (Find the momentum of each slider before the collision and then add them together.)
What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 36.0cm?
A bicycle tire with a radius of 0.42 m has a linear velocity of 2.6 m/s and an tangential acceleration of - 1.0 m/s2 What is the angular velocity of the tire?
What is the angular speed (in rad/s) of the drive when the power comes on, after 30s?
What is the the electricrostatic potential due to these three charges at a point on the y-axis at y = 4.0 cm?
Sketch a graph showing the reading of the ammeter as a function of time. The ammeter registers a positivevalue of current when current goes into the "+" terminal.
Assume the two objects collide and stick together. What is the velocity of the combined mass after the collision?
How much work was done by nonconservative (dissipative) forces as the object moved once around the circle?
Is she nearsighted (myopic) or farsighted (hyperopic), and what kind of lens is used in her glasses to correct her eyesight?
A rod length 2.0m is uniformly charged and has a total charge of 5.0 nC. What is the electric potential at a point which lies along the axis of the rod and is 3.0 m from the center of the rod?