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The place you get your hair cut has two nearly parallel mirrors 7.0 m apart. As you sit in the chair, your head is 1.0 m from the nearer mirror. Looking toward this mirror, you first see your face and then, farther away, the back of your head. (The mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) How far away does the back of your head appear to be? Neglect the thickness of your head. Express your answer using two significant figures.
A torque of 11Nm is applied to a heavy wheel whose moment of inertia is 34 kgm2. What is the angular acceleration of the wheel
Differences in analysing a roller coaster system as particle and rigid body, such as the assumption(s) made when treating the roller coaster as particle, parameters involved in kinematic and kinetic analysis.
A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The period of the electromagnetic oscillations in the circuit is
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. What impulse was given to the ball by the floor
A submarine dives to a 50-m depth in the ocean. What is the gauge pressure at this depth
A 102-N grocery cart is pushed 13.0 m by a shopper who exerts a steady horizontal force.
An object is thrown vertically upward with an initial velocity of 14.7m/s, how long does it take for the object to be 9.8m from its initial position
To understand how to apply the equations for one-dimensional motion to the x and y directions separately in order to derive standard formulas for the range and height of a projectile
A positive charge of 0.900? C is located in a uniform field of 1.05×105 N/C. How close are the two charges
A 24 inch string is wrapped around the 1/8 inch radius axis of a yo yo. Starting from rest, the yo yo descends with the constant angular acceleration of 4 rad/seconds squared. How long will it take the string to totally unwind.
A parallel plate capacitor has an area of 0.40m^2 and a plate separation of 0.02m. What is the magnitude of the electric field in the region between the plates
You are investigating an accident where a 1500 kg car that was parked without its emergency brake on rolled down a hill with a slope of 8 degrees a distance of 150 m, How fast was the car moving when it hit the van
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