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The drawing shows two boxes resting on frictionless ramps. Onebox is relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramps. Thetwo boxes have masses of 12 and 38 kg. If A and B are5.5 and 0.5 m, respectively, above the ground,determine the speed of (a) the lighter box and(b) the heavier box when each reaches B.(c) What is the ratio of the kinetic energy of the heavier box to that of the lighter box at B?
An object 6.0mm high is placed 18cm from a convex mirror of radius of curvature 18cm. Determine the image distance using the mirror equation
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
A 305 turn solenoid has a radius of 7.00 cm and a length of 24.0 cm. Find the inductance of the solenoid
an electron with speed vo 2.61times107ms is traveling parallel to an electric field of magnitude e 1.03 times 104 nc .
How much time does the ball spend in the air. What is the longest "hole in one" that the golfer can make, if the ball does not roll when it hits green.
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.7 m/s. The car is a distance d away. The bear is 30 m behind the tourist and running at 6.0 m/s. The tourist reaches the car safely. What is the m..
A certain dog whistle operates at 22.75 kHz, while another (brand X) operates at an unknown frequency. estimate the operating frequency of brand X
A block of mass = 2.9 is attached to a string that is wrapped around the circumference of a wheel of radius = 8.3. Find the moment of inertia of the wheel
what is the volume v of a sample of 4.30 mol of copper? the atomic mass of copper cu is 63.5 gmol and the density of
In a tug of war, each man o a 5-man team pulls with an average of 500N. What is the tension in the center of the rope
In some places, insect "zappers", with their blue lights, are afamiliar sight on summer nights. These devices use a high voltageto electrocute insects. One such device uses an ac voltage of 4310V, which is obtained from a secondary 120 V outlet by me..
a golf ball is dropped from rest from a height of 9.30 m. it hits the pavement then bounces back up rising just 5.80 m
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