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Speedy Sue, driving at 30.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 155 m ahead traveling at 5.00 m/s. Sue applies her brakes but can accelerate only at -2.00 m/s^2 because the road is wet. Will there be a collision? State how you decide. If yes, determine how far into the tunnel and at what time the collision occurs. If no, determine the distance of closest approach between Sue's car and the van.
A specimen of oil having an initial volume of 600 cm3 is subjected to a pressure increase of 3.6*10^6 Pa, what is the bulk modulus (in Pa) of the material
Two children standing on opposite sides of a merry-go-round are trying to rotate it. They each push in opposite directions with forces of magnitude 10.0 N. How fast is the merry-go-round rotating after 4.0s
After being accelerated to a speed of 1.76×105m/s , the particle enters a uniform magnetic field of strength 0.800T and travels in a circle of radius 35.0cm, Find the ratio m/q for this particle
A crate is dragged across a rough floor by a force of 120N asz` shown below. A friction force of 40N acts to slow the motion of the crate. what is the net work done
A 1500 kg truck, cruising at 20.0 m/s, approaches a 0.450 km long hill inclined at 5.74?. what average force was applied to the drive wheels
A disk released from the top of an inclined plane has a speed of 6.32 m/s at the bottom. How high is the upper end of the inclined plane
A 0.300 kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200 kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200 kg puck has a speed of 1.00 m/s at an angle of ? = 55..
An electron with velocity v = (300, 200, 0) m/s moves in a region where the magnetic feild is B = (0, 1.2, 2.8) x 10^-4 T. Determine the force on the electron
A solid disk of mass m1 = 9.3 kg and radius R = 0.23 m is rotating with a constant angular velocity of ? = 33 rad/s. find the initial angular momentum of the rod and disk system
An ideal gas initially at 20°C and 199 kPa has a volume of 3.40 L. It undergoes a quasi-static, isothermal expansion until its pressure is reduced to 94 kPa. (a) Find the work done by the gas. J (b) Find the heat added to the gas during the expans..
chameleons catch insects with their tongues which they can rapidly extend to great lengths. in a typical strike the
A very long, straight wire has charge per unit length (lambda) . At what distance from the wire is the electric field magnitude equal to E ? How do you solve this problem?
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