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1. Broiled lobster contains 3.60 MJ/kg of metabolizable food energy. If Sharla has 45.0 min of hard cycling planned later in the day, how much lobster can she eat so that she will be sure not to gain weight?
2. Suzanne Malaxos, 27, from Perth Australia, won the 12th annual Empire State Building Run-Up in New York City by climbing the 102 story building in 12 min and 24 s. If her body mass is 50.0 kg, and each story is 4.00 m high, determine the amount of body fat she consumed in the race. Assume a muscle energy conversion efficiency of 25.0% and a body fat energy content of 33.1 MJ/kg.
A wire has a diameter of 0.200mm and stretches 20% when a force of 6.28 Newtons is applied to it. What is the elastic (Young's) modulus of this wire
while walking between gates at an airport you notice a child running along a moving walkway. estimating that the child
A railroad flatcar is loaded with crates having a coefficient of static friction 0.25 with the floor. how short a distance can the train be stopped without letting the crates slide
A small wheeled vehicle will be sent to the planet mars to explore its surface. The vehicle contains an accelerometer that consists of a small pendulum. at what angle will the pendulum swing out
An airplane employee tosses a 15-kg suitcase with a horizontal velocity of 3 m/s onto a 35-kg baggage carrier. Knowing that the carrier is initially at rest and can roll freely, determine (a) the velocity of the carrier after the suitcase has slid to..
A highway curve of radius 560m is designed for traffic moving at a speed of 94.0km/hr. What is the correct banking angle of the road
A projectile is fired at an upward angle from the top of a 165 m cliff with a speed of 195 m/s. What will be its speed when it strikes the ground below
Two parallel square metal plates (side length: 13 cm) are separated by a dielectric material with a dielectric constant 3.9 and a thickness of 2.4 mm. Find the capacitance of the parallel-plate capacitor
Complex pendulum A pendulum is made of the following: A 2.4 meter long metal rod with a radius of 0.02 m and a mass of 24 kg. A circular weight of 12 kg attached to the rod at a distance of 1.8 m from the top. A square weight of 8 kg attached at t..
Because of air resistance a constant torque exerted on the system to keep it spinning at that rate. Assuming that the air exerts a miniscule force on the stick (but a significant force on the ball), identify the force the air exerts on the ball.
An object is thrown vertically upward and has a speed of 20.0 m/s when it reaches two thirds of its maximum height above the launch point, determine The velocity of the object at maximum height
A nearest-neighbor pair of Mg2+ ions are separated by a distance of square root 2 a0. Calculate the coulombic force of repulsion between the ions.
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