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Q1. On a very muddy football field, a 110kg linebacker tackles an 85kg halfback. Immediately before the collision, linebacker is slipping with a velocity of 8.8m/s north and halfback is sliding with a velocity of 7.3m/s east.
Q2. A 67.3 ice skater moving to the right with the velocity of 2.52 throws a .151 snowball to the right with a velocity of 33.7 relative to the ground. What is velocity of the ice skater after throwing the snowball?
Q3. Locate the magnetic energy stored in the air gap between two very large magnet pole pieces, one North, one South, each with an area of 100 cm2. Imagine the 0.05 T magnetic field is uniform within the 2-cm gap.
Depict physics diagram for problem.
A woman stands at the edge of a carousel that is rotating without friction at 0.80 rad/s. The carousel has a radius of 2.0m and a moment of inertia of 600 kg m2. What is now the angular speed of the carousel
You run a microwave for 6 minutes together with a 1500 W boom-box and a 2800 W space heater. What is the power of your microwave
A lens that has a focal length of 8.45 cm is used as a magnifying glass. (Take the near point of a normal eye to be 25 cm from the eye.) What is the angular magnification
A boy throws a ball into an open window 10m above his shoulder at 65 degrees with the horizontal. He observes that the ball flies in horizontal. A. What is the initial speed of the ball
A cubical block of wood 10cm on a side, floats at the interface between oil and water with its lower surface 1.50 cm below the surface
Assuming that all the heat generated by the resistor is absorbed by the solid substance, and that it takes 4 minutes to raise the temperature from 20to 80 degrees C, compute the specific heat for the substance.
A classroom slide projector projects an enlarged (55 times taller) image of a 24 mm high photographic film onto a screen located 10 meters from the projector. What focal length lens (cm) does slide projector require to produce a sharply focus imag..
An electron is trapped within a sphere whose diameter is 5.90 × 10-15 m, What is the minimum uncertainty in the electron's momentum
If the radius of a pipe is reduced from 2.87 m to 0.75 m along the direction of a gas flow, how many times does the speed of gas flow increase
Two boats start together and race across a 56km wide lake and back. Boat A goes across at 56 km/h and returns at 56km/h. Boat B goes across at 28km/h, and its crew, realize how far behind it is getting.
An object of mass 555 grams sitting on a plane inclined at 35 degrees doesn't slide. Now the plane is lifted to the angle of 50 degrees and the object slides down plane knowing that the coefficient of kinetic friction is 0.44, find out the coefficien..
A 14-Ω coffee maker and a 14-Ω frying pan are connected in series across a 120-V source of voltage. Find the total current supplied by the source of voltage
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