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The mass of a string is 9.0 x 10-3 kg, and it is stretched so that the tension in it is 240 N. A transverse wave traveling on this string has a frequency of 380 Hz and a wavelength of 0.78 m. What is the length of the string?
A student is asked to determine thickness of film of oil (n=1.43) on surface of water n=1.33) Light travels through air to oil film to water. Calculate minimum possible thickness of oil film
An infinite line of positive charge lies along the y axis, with charge density 1.90 microcoulombs/m. Calculate the torque about the midpoint of the dipole
A 3-kilogram block slides along on a frictionless surface at 6 m/s north and strikes an obstacle that exerts an impulse on the block of 9 N-s to the south
Determine the minimum velocity and angle required to shoot a projectile over a wall and land 14ft from origin. The wall is located 10ft from origin and is 26.5ft high and 0.5ft wide.
You are on a bridge which is a height 30m above the water. You first drop a ball and then 1.5 seconds later throw a second ball down so that both balls hit the water at the same time.
A wooden shelter has walls constructed of wooden planks 1.00 cm thick. find the rate of energy loss through a wall that has dimensions 1.65 m by 2.40 m
Two free particles (that is, free to move) with charges +q and +4q are a distance L apart. A third charge is placed so that the entire system is in ?quilibrium. Find out the location, magnitude, and sign of the third charge.
A spaceship is 1600 m long when it is at rest. When it is traveling at a certain constant speed its length is measured by external observers, What is the speed of the spaceship in terms of the speed of light
Objects A and B are both positively charged. Both have a mass of 118 g, but A has twice the charge of B. How large is the force on A
a 4.5kg ham is thrown into a stationary 15-kg shopping cart.at what speed will the cart travel if the ham had an initial speed of 2.2m/s, how long did the collision between the two last
A small object with a momentum magnitude 6.0 kg m/s approaches head on a target at rest. What is the magnitude of the small objects momentum change
white light is shone on a very thin layer of quartz n 1.54 and above the quartz layer interference maxima for two
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