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Question1
A 93 kg lumberjack stands at one end of a 379 kg floating log. Both the log and the lumberjack are at rest firstly. If the lumberjack now trots toward the other end of the log with a speed of 2.7 m/s relative to the log, what is lumberjack's speed relative to the shore? Overlook friction between the log and the water.
Question2
A has a magnitude of 94.0 Newton's (N) and points due east. The force vector B has a magnitude of 131 N and points 77.0 ° north of east.
Find out the
(a) Magnitude and (b) direction of A - B. (Give the direction as a positive angle with respect to due east).
(c) Magnitude and (d) direction of B - A. (Give the direction as a positive angle with respect to due west).
You throw a ball toward a wall at speed 20 m/s and at angle theta=60 degrees above the horizontal. What is the angle when it hits the wall
Calculate the peak voltage of a generator that rotates its 210 turn, 0.100 m diameter coil at 3600 rpm in a 0.830 T field
A skydiver with his parachute has a combined mass of 79 kg and an approximate frontal area of 0.71 m^2. Calculate the terminal velocity of this skydiver in a horizontal position
Dave needs to get groceries from the store, which is a distance of D=2.8km east of his house, What is the direction of Dave's displacement for the entire trip
Blood can carry excess energy from the interior to the surface of the body, where the energy is dispersed in a number of ways. determine the temperature of the blood
A beam of polarized light with an average intensity of 18.9 W/m2 is sent through a polarizer. find the rms value of the electric field of the transmitted beam
A 0.025 kg golf ball moving at 21.0 m/s crashes throughout the window of a house in 2.0 10-4 s. After the crash, ball continues in the same direction with a speed of 10 m/s. assuming the force exerted on the ball by the window was constant, what w..
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
The index of refraction of air is 1, the index of glass 1.55 and the index of water 1.33. Characterize the air bubble as a point source.
A centrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. Find the constant angular acceleration (in rad/s2) of the centrifuge
A car tire is 64.0cm in diameter. The car is traveling at a speed of 16.0m/s. What is the tire's rotation frequency
An automobile of mass 1500 kg moving at 25m/s collides with a truck of mass 4500 kg at rest. What is the final velocity of the car after the collision
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