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A research historian is interested in finding sunken treasure in the Atlantic Ocean. She knows that her equipment is only good enough to recover items that are at a depth of 5 000 m or less. The speed of sound through the water is 1 530 m/s. While working, the sonar equipment detects a reflection that is of interest. The echo from the item takes 6.2 s to return to the sonar detector. Will she be able to retrieve this item?
A silver rod and a common glass rod both have the same length when at 20.0°C. The silver rod is heated to 52.3°C. To what temperature must the glass rod be heated so that they are again at the same length?
A small diameter, 81 cm long solenoid has 215 turns and is connected in series with a resistor and battery. The size of the magnetic field inside the solenoid is 1.118E-4 T when a voltage of 61.0 V is applied to the circuit. Calculate the resistance ..
A flying squid is able to "jump" off the surface of the areaby taking water into its body cavity and then ejecting the watervertically downward. how high in the air will the squid rise
A tube with a 5.0 mm radius has ions flowing through it. To determine the rate at which the charge is being moved through the tube, find the magnitude of the current flowing through the tube
1) What is magnitude of the linear acceleration of the hoop? 2) What is magnitude of the linear acceleration of the sphere? 3) What is the magnitude of the angular acceleration of the disk pulley?
A particle of mass m is attached to the end of a light string of length l. The other end of the string is passed through a small hole and is slowly pulled through it. Gravity is negligible. The particle is originally spinning the round the hole wi..
The concrete wall of a building is 0.11 m thick. The temperature inside the building is 23.2°C, while the temperature outside is 0.0°C. Heat is conducted throughout the wall.
A swimming pool is 50 m long by 23 m wide and is less deep at one end than at the other. The depth at the shallow end is 1.18 m, and the depth at the deep end is 3.95 m. The slope is continuous (smooth) from one end to the other. What is the differen..
2 moles of an ideal gas is allowed to expand from 0.002 m^3 to 0.02 m^3 while the pressure is held at 325000 pascals. Determine the net heat flow in or out of the system
A 20.0 kg box is pulled up a ramp a distance d = 15.0 m with a force of Fp = 165 N parallel to the ramp, as shown in the figure to the right. Find the work done on the block by gravity
You are going to go across Mississippi river from East to West bank by rowing your kayak. You know you can row 3 m/s in still water. What direction you should aim at in order to go across the river in the shortest time
In a two-slit experiment, the third bright fringe away from the central fringe is observed at an angle 7 degrees. what is the distance between the two slits
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