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The treasure map in the figure gives the subsequent directions to the buried treasure: "Start at the old oak tree, walk due north for 510 paces, then due east for 100 paces. Dig." However when you arrive, you find an angry dragon just north of the tree. To avoid the dragon, you set off along the yellow brick road at an angle 60? East of north. After walking 300 paces you see an opening during the woods.
1. Which direction should you go to reach the treasure?
2. How far must you go to reach the treasure?
Concept Simulation 5.1 reviews the concepts that are involved in this problem. A child is twirling a 0.0282-kg ball on a string in a horizontal circle whose radius is 0.109 m. by what factor does the centripetal force increase
An electron (charge -e) is projected horizontally into the space between two oppositely charged parallel plates. The electric field between the plates is 462N/C upward.
What is the magnitude of the force of upper leg on the lower leg at the knee joint.
In designing a transformer, an engineer knows she needs 240 V to come out of the secondary circuit. what is the ratio of primary voltage to primary turns
the horizontal and the chair slides along the floor. Using Newton's laws, compute the magnitude of the normal force that the floor exerts on the chair.
You are given a sample of metal and asked to determine its specific heat. You weigh the sample and find that its weight is 25.5 N. What is the sample's specific heat
The electrons in a metal that produce electric currents behave approximately as molecules of an ideal gas. The mass of an electron is me = 9.109x10-31 kg. If the temperature of metal is 311 K, what is the root-mean-square speed of the electrons.
You want to support a sheet of fireproof paper horizontally using only a vertical upward beam of light spread uniformly over the sheet. There is no other light on this paper. The sheet measures 22.0cm by 28.0 cm and has a mass of 1.50g.
The speed of sound in air at 20 C is 344m/s. How many milliseconds does each vibration take
A string with a length of 3.0 m has two adjacent resonances at frequencies 112 Hz and 140 Hz. Decide the speed of the waves on the string vibrating at 140 Hz. Decide the wavelength of the 140 Hz resonance.
A 210 g piece of ice at 0°C is placed in 410 g of water at 22°C. The system is in a container of negligible heat capacity and is insulated from its surroundings. How much of the ice melts
An electric vehicle starts from rest and accelerates at a rate of2.6 m/s2 in a straight lineuntil it reaches a speed of 20 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 untilit stops. How much time elapses from start tostop?
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