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A system of 1219 particles, each of which is either an electron or a proton, has a net charge of -6.640×10-17 C.
a) How many protons are in this system (exactly)?
b) What is the mass of this system (to three significant digits)?
What are vertical and horizontal components of the ball's momentum immediately after striking the crossbar. what is an average acceleration of the ball during this time interval.
A man slides along a long water slide and then being launched into the air to land in a water pool. Find the magnitude of the velocity at landing
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20 C, your 1200 square ft house might lose heat through the walls at a rate of 4000 W.
An object carries a charge of -6.6 µC, while another carries a charge of -2.0 µC. How many electrons must be transferred from the first to the second object
When subject to a steady acceleration of 0.800 g, the object must be located 0.600cm from its equilibrium position. Find the force constant required for the spring.
A uniform disk of radius 0.459 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
how far is this point horizontally from the end of the ramp. A skateboarder shoots off a ramp with a velocity of 6.2 m/s, directed at an angle of 61° above horizontal. The end of the ramp is 1.5 m above the ground.
A ladder 7.09 m long leans against the side of a building. If the ladder is inclined at an angle of 79.50° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building.
A uniform electric field points midway between the positive x and y axies. Its strength is 100Volts/m. Find the location of the point where the total electrid field is zero
The object to be viewed is placed 2mm beyond the focal point of objective lens. What is the overall magnification of this microscope.
A beam of electrons is incident on two slits separated by a distance of 2.0×10-6 m. Calculate the kinetic energy of the electrons
Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, How much energy does our body lose in one second
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