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(a) How long will the energy in a 310 kcal cup of yogurt last in a woman doing work at the rate of 130 W with an efficiency of 20.0% (such as in leisurely climbing stairs)?
(b) Does the time found in part (a) imply that it is easy to consume more food calories than you can reasonably expect to work off with exercise?
A parachutist bails out and freely falls 61 m. Then the parachute opens, and thereafter she decelerates at 2.3 m/s2. How long is the parachutist in the air
A sphere of radius 4.51cm and uniform surface charge density +12.1 µC/m2 exerts an electrostatic force of magnitude 4.50×102 N on a point charge +1.55 µC. Find the separation between the point charge and the center of the sphere
An electron is moving at a speed of 1.1 multiplied by 104 m/s in a circular pathof radius of 2.1 cm inside a solenoid.The magnetic field of the solenoid is perpendicular to the plane ofthe electron's path. The solenoid has 25 turns per centimeter.
The two 10-cm-long parallel wires are divided by 5.0 mm. For what value of the resistor will the force between the two wires be 1.08×10-4 N.
Consider a steam turbine in which the steam expands adiabatically. If the turbine consumes 1.00 kg steam each second, calculate the temperature of the steam at the exhaust
A 0.14- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. How far does the block go
How much work should be done to bring 3 electrons from a great distance apart to within 2.55E-10 m from one another (at the corners of an equilateral triangle).
A 2.4-kg block is dropped from a height of 5.0 m onto a spring of spring constant 3955 N/m. When the block is momentarily at rest, the spring has compressed by 25 cm.
A ball is shot from the ground into the air. At a height of 8.2 m, the velocity is observed to be v = (7.6)i + (5.3)j in meters per second (i horizontal, j upward). What is the velocity of the ball
question1calculate approximately the average power of a water wave when it hits chest of an adult standing in the water
A cat is brought into a vets office you need to find itscenter of gravity. what is the total weight of the cat
A wheel and axle has its matter distributed like a solid disk. (I=1/mR^2) It has a radius of 0.60m and a mass of 0.50kg, how many turns does the wheel make in 2.0sec
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