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a block, m= 3 kg, slides on a frictionless horizontal surface.It then goes up a 15 degree incline having a coeffecient offriction uk=0.30 a distance L before stopping. The initial velocityof the block on the horizontal sureface is 2 m/s.
a) find the acceleration of the block on the plane. Why is itnegative?
b) find the distance L in meters.
Given that the enthalpy of vaporization for water at its normal boling point is 40.69kj mol^-1, Calculate q,w and ?U for vaporizing 5.00 mol at 100 degrees in an open container at 1.00 atm.
Jane, looking for Tarzan, is running at topspeed (6.7 m/s) and grabs a vine hanging vertically from a talltree in the jungle. How high can she swing upward
Target market
Design an optimal winter coat to keep you warm. Use the principle of heat transfer (conduction, convection, and radiation). Give description of how they affect the coat. What color should the coat be and what would it be made from?
A long straight conducting rod (orwire) carries a linear charge densityλof +2.0μC/m. This rod is totally enclosed within a thincylindrical shell of radius R, which carries alinear charge density of - 2.0μC/m.
Diccuss the difference between atomic packing factoe in terms of the angle between the unit cells. Specifically, let a be the angle between the unit cell of a general 2D lattice.
Halley's comet moves about the Sunin an elliptical orbit, with its closest approach to the Sun being0.59 A.U. and its greatest distance being 35 A.U. what is its speed when it isfarthest from the Sun
Identify a team in which you have had many opportunities to participate
One mole of an ideal gas expands reversibly and adiabatically from an initial temperature 35.0 degrees and a volume of 10.0L to a volume of 40.0L. Calculate the final temperature, the final pressure,?U,and w. assume Cp=30.JK^-1 mol^-1
Describe three ways virtual groups can communicate via communication technology.
Two traveling waves with the same amplitude A, frequency f, and wavelength, but out of phase with each other by one quarter of a wavelength, aWrite the equation of the resulting traveling wave
An electron is initially at rest. It is accelerated through a potential difference of 400 V. What is the kinetic energy of this electron
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.23 m/s. What is his speed when he catches up
A ball is thrown off the top of a building with a velocity v at an angle ? with respect to the horizontal. Find the total time of flight until the ball hits the ground
A thing rod of mass M and lenght l is suspended from a frictionless pivot at its upper end. How high does the bottom of the rod swing
A solenoid with 1200 turns per meter has a diameter of 9.00 cm. A current I = 2.57 A flows in the clockwise direction, Find the magnitude of the magnetic flux through the loop
A jetliner can fly 5.32 hours on a full load of fuel. Without any wind it flies at the speed of 220 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip.
An object moves with constant acceleration 4.45 m/s2 and over a time interval reaches a final velocity of 12.4 m/s. If its initial velocity is 6.2 m/s, what is its displacement during the time interval
A cart traveling at 0.3 m/s collides with stationary object. After the collision, the cart rebounds in the opposite direction. In which collision is the impulse on the cart greater
What inductance must be connected to a 25 pF capacitor in the oscillator capable of generating 480 nm (i.e., visible) electromagnetic waves.
In astronomy it is common to expose a photographic plate to a particular portion of the night sky for quite some time in order to gather plenty of light. Before leaving a plate exposed to the night sky, Matt decides to test his technique by exposi..
The following charges are located inside a submarine: 2.80 µC, ?9.00 µC, 27.0 µC, and ?76 µC. Calculate the net electric flux through the hull of the submarine
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