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Ricardo (R) and Maria (M) are in a canoe that is stationary and floating on a calm lake. They are 4.0 m apart, symmetrically located about the center of the canoe as shown in the figure on the left. Ricardo has mass 87.1 kg, and the canoe is massless. The canoe is free to move in the water without friction.
Ricardo and Maria both move to the center of the canoe. Ricardo notices that the canoe moves a distance d = 0.37 m relative to a rock that is stationary in the water. What is Maria's mass in kg?
A thermos contains 156 cm3 of coffee at 87.6 °C. To cool the coffee, you drop two 11.5-g ice cubes into the thermos. What is the final temperature of the coffee in degrees Celsius
A racing car start from rest in the distance and accelerates with a uniform rate of speed 35m/s in 11 sec moving in a circular path of radius 500 m assuming constant tangential acceleration find (1) the tangential acceleration. (2) The centripetal..
Consider a sunspot with measured field strength 1000 Gauss. Assume the ratio of the total brightness of the gas at the center of the sunspot, Determine the temperature of the gas inside and outside the sunspot
a boeing 747-8 with wingspan of 65.5 m is cruising at 289 m/s over northern canada, What is the potential difference between the tips of the wings
A 1500 kg car traveling at a speed of 20 m/s skids to a halt on wet concrete where kinetic friction= 0.20. How far are the skid marks.
The runner turns around and runs in the -x direction at the same speed. Now what is the kinetic energy of the runner
Heather and Jerry are standing on a bridge 51 above a river. Heather throws a rock straight down with a speed of 12. Jerry, at accurately the same instant of time, throws a rock straight up with the same speed. Ignore air resistance.
The temperature of 3.25 mol of an ideal diatomic gas is increased by 23.5 ?C without the pressure of the gas changing. By how much does the rotational kinetic energy of the gas increase
The cohesive energy of a sodium chloride crystal is 6eV per ion pair, Neglecting the energy of repulsion, estimate the interionic spacing
A scuba diver is 48 m below the surface of a lake, where the temperature is 5°C. He releases an air bubble with a volume of 17cm3. The bubble rises to the surface.
If the spring stretches by 2.4cm, what is the coefficient of static friction between the backpack and the table.
In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. What width of the north wall can she see
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