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A 6.1 kg physics book is sitting on the table with no external forces acting upon it other than gravity and the table. The coefficient of static friction between the table and the book is .55. What is the force of friction on the book?
radiation from a star reaches a planet's surface at an average rate of 2700 w/m^2, Find the force exerted on a roof that has dimensions 10x20 m
a deuterium nucleus (mass 2.00) moving at 650 m/s collides with a helium nucleus (mass 4.00) moving at 480 m/s in the opposite direction, what percentage of the initial total energy is lost in the collision
A spherical concave mirror has a radius of curvature of 6.0cm. At what distance from the mirror should a 6.0 cm object be placed to obtain an image that is 48cm tall?
A parallel-plate capacitor has plates of dimension 1.5cm x 3.0cm separated by a 1.5mm thickness of paper, what is the capacitance of this device
A low-power laser used in a physics lab might have a power of0.50 mW and a beam diameter of 3.0mm. calculate the average light intensity of the laser beam
Ocean waves (on a particularly nice summer day) move past at 1.8 waves/s. find the speed of the waves
The tallest spot on Earth is Mt. Everest, which is 8857 m above sea level. If the radius of the Earth to sea level is 6369 km, how much does the magnitude of g change between sea level and the top of Mt. Everest
A 10-m-by-14-m house is built on a 12 centimeter thick slab of concrete. Find the rate of heat loss through the slab
in a potentiometer arrangement a cell of emf 1.25 v gives a balance point at 35.0 cm length of the wire. if the cell is
A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 3.4 J of work is required to compress the spring by 0.18 m. Find the value of the mass
q 1. the highest musical note on a piano has a frequency of 4286 hz. why would a tape of piano music sound terrible if
A hydrogen atom is in the 3d energy state. Decide the following: The principle quantum number and the energy of the state. The orbital quantum number and the orbital angular momentum of the atom’s electron.
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