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On a very muddy football field, a 117 kilogram linebacker tackles an 86 kilogram half back. Immediately before the collision, the linebacker is slipping with a velocity of 8.9 m/s north and the half back is sliding with a velocity of 6.9 m/s east. Find what is the velocity at which the two players move together immediately after the collision?
magnitude m/s
direction ° north of east
Electromagnetic waves and sound waves can have the same frequency. What is the wavelength of 1.10 kHz ectromagnetic wave
A string that passes over a pulley has a .321 kilogram mass attached to one end and a .635 kilogram mass attached to the other end. Find the magnitude of the frictional torque that must be exerted by the axle
A small mirror is attached to a vertical wall, and it hangs adistance of 1.56 m above the floor. The mirror is facing due east,and a ray of sunlight strikes the mirror early in the morning andthen again later in the morning.
Imagine that in a certain proton accelerator, roughly 1011 protons at a time go around a ring having a radius of 4.0 km, What is the current flowing in the ring, in amperes
Estimate the fractional error (%) on the left side and on the right side of the equation based on the precision of the available equipment in class: the pulling mass is measured by slotted weights with precision of 10 gram
a skier is pulled up a slope at a constant velocity by a tow bar. the slope is inclined at 23.0deg with respect to the
What must be the thickness of the liquid layer if normally incident light with? = 504 nm in air is to be strongly reflected
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.9 m from deer A at an angle of 51.4 ° north of west. What is the distance between deer A and C
What volume of space contains an energy equal. A car in stop-and-go traffic starts at rest, moves forward 12m in 8 seconds, then comes to rest again. The velocity-versus-time plot for this car is given.
A series circuit is made up of a 400 ohm resistor, a 3 henry inductor and a 8 microfarad capacitor all placed in series. Determine the steady state current flowing in this circuit
You have determine that it takes 3s for a toy car ti travel through the distance of 162 cm. Calculate the average speed of the toy car
A mass of 0.5 kg is suspended from a spring, which stretches by 8 cm. At what frequehcy would you expect resonant behavior
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