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A scale sits atop a desk. On the scale is a cylindricalcontainer (mass 100g) filled with 200cm3 (200g) ofwater. A hunk of metal (mass 200g, volume 25 cm3)is tied to a string and held suspended in the water.
a) What is the string tension?
b) How many grams does the scale read?
The linear coefficient of thermal expansion for concrete is 12x10^-6 ºC^-1. Consider a slab of concrete which is 4.0 m long at 0.0 ºC. What seems to be the primary safety concern in the lab
In a movie, Jason Borne evades his captors by hiding underwater for many minutes while breathing through a long, thin reed. calculate the deepest he could have been
The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. What is the radius of the geostationary orbit for this neutron star
The magnetic field produced by the solenoid in a MRI system has a field strength of 8.63T, What is the number of turns per meter of length of the solenoid
The wire is cut at point P. Will the potential difference between points A and B increase, decrease, or remain the same? Give reason for.
The world record for a high jump from a standing position is 1.90 m. With what speed must a jumper leave the ground to the attain this height
a proton moving at a constant velocity of 106 ms enters a region of uniform magnetic field perpendicular to its
an artillery piece is aiming at a target on a cliffacross a river. the horizontal distance of the target from the gunis 300 meters, what is the maximum height reached by the shell fired from the gun
An electron is released to accelerate from point 1 to point 2 in a potential region. The electric potentials at these points are V1 = -35 V and V2 = +200 V. Calculate the change in potential energy of this electron
a capacitor is formed from a hollow copper sphere of inner radius r 36.3 cm and outer radius r 45.4 cm. calculate the
The uncertainty of the position of an electronis 0.46nm. Calculate the minimal uncertainty of its momentum
If a car of mass 1000 kg is moving along a highway at 92 km/h, what is car's kinetic energy as determined by someone standing alongside the highway.
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