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A 42.0 kg seal at an amusement part slides from restdown a ramp into the pool below. The top of the ramp is 1.75mhigher than the surface of the water and the ramp is inclined at anangle of 35 degrees to the horizontal. If the seal reaches thewater with a speed of 4.40 m/s, what is
(a) the work done by kinetic friction
(b) the co-efficient of kinetic friction betweenthe seal and the ramp.
A vertical spring has one end attached to the ceiling and a 2.50-kg fish attached to the other one. How far down the fish will drop before starting to come back
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 2.3- cm-diameter pipe if the velocity in the smaller pipe is 4.0 m/s
Vectors A and B have scalar product -3.00 and their vector product has magnitude 5.00. What is the angle between these two vectors
An unstable particle is at rest and suddenly breaks up into two fragments. No external forces act on the particle or its fragments. What is the velocity of the more massive fragment
What is the period of oscillation of the scale? State your reply numerically in seconds.
In an experiment, light of wavelength 600 nm falls on two slits which are spaced at a distance of .5 mm. What is the distance of the slit to the screen
A piece of copper wire is formed into a single circular loop of radius 12 cm. What is the average electrical energy dissipated in the resistance of the wire
150 g of ice at -10.5 oC is raised to the melting point and then raised to 76.0 oC. How much heat is added to the system
A student eats a candy bar that may give 1.8 * 10^6 joules of energy. if the student has a mass of 60 kg, how high will he have a climb a ladder to offset completely the energy contained in the candy bar.
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3.4 kg and radius R = 0.26 m. What is the final angular speed of the fan
An automobile tire has a radius of 0.430 m, and its center moves forward with a linear speed of v = 14.0 m/s. Determine the angular speed of the wheel
A skier of mass 65 kg skis straight down a 11° slope at constant velocity. Find the value of the normal force
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