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Miles Tugo is camping in Glacier National Park. In the midst of a glacier canyon, he makes a loud holler. He hears an echo 1.22 seconds later. The air temperature is 20 degrees C. How far away are the canyon walls?
A 3.1 micro Coulomb charge hangs from a string midway between two sheets and makes an angle of 10 degrees with the vertical, what is the tension in the cord
A person makes a quantity of iced tea by mixing 520 g. of hot tea with an equal mass of ice at 0C. what are the final temperature and mass of the ice remaining if the initial hot tea is at temperature of 90C? 70 C?
A 80.0 Hz generator with an rms voltage of 150 V is connected in series to a 3.20 k ohm resistor and a 3.50 micro farad capacitor. Find the phase angle between the current and the voltage
A pair of cylindrical shoes each having a radius of 1 m and height of 5 cm are designed to allow a person to stand on water without getting their feet wet. What is the largest mass the person can have
A Styrofoam box has a surface area of 0.76 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam
A bowling ball with a diameter of 21.0cm is rolling down a level alley surface at 11.4m/s without slipping. If it now starts to roll up a 30 degree incline, how far up the incline will it travel before it stops
A transparent oil with index of refraction 1.16 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
A loudspeaker at a rock concert generates 10-2 W/m2 at 18 m at a frequency of 1 kHz. Suppose that speaker spreads its energy uniformly in all directions. What is the intensity level at 18.00m.
A 0.60 kg body oscillates on a spring that, when extended 1.0 mm from equilibrium, has a restoring force of 7.0 N. find the angular frequency of oscillation
A 4.89-g bullet is moving horizontally with a velocity of +345 m/s, where the sign + indicates that it is moving to the right. What is the velocity of the second block after the bullet imbeds itself
Calculate the absolute pressure at the bottom of a freshwater lake at a point whose depth is 26.2 m
A rectangular barge, 4.0 m long and 1.5 m wide, floats in fresh water. (a) Find out how much deeper it floats when its load is a 380-kg horse. (b) If the barge can only be pushed 15 cm deeper into the water before water overflows to sink it, how m..
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