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Calculate the number of liters of water a human drinks in a lifetime, suppose a lifetime of 72 years and consumption of eight 8 ounce glasses of water a day.
The circuit in the drawing contains two resistors and twocapacitors that are connected to a battery via a switch. When theswitch is closed, the capacitors begin to charge up. What is the time constant for the charging process?
A rotating wheel requires a time t = 4.32s to rotate 37.0 revolutions. What is the constant angular acceleration (rad/s2 of the wheel
Your textbook has a mass of 2 Kg. Its dimensions are 28 cm by 23 cm by 3 cm. It is standing right side up on your book shelf resting on the smallest area. Calculate the pressure the book applies on the table in Pascals.
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is ? = 1.90 10-7 C/m2, and the plates are separated by a distance of 1.5 10-2 m. How fast is the electron moving just bef..
A 160.-kilogram astronaut (including lifesupport) lands on the asteroid Eros where the gravitational acceleration (g) is 5.45millimeters/s2. What is the astronaut's weight on Eros? What is the name of the unit used for weight?
A CD (radius 6.0cm) is spinning freely with an angular velocity of 400 rpm when a bug drops onto the CD a distance of 4.5cm from the center. what is the ratio of the bug's mass to the mass of the CD
A 83-kg skater sliding due southeast at an initial speed of 2.0 m/s runs into a snow bank, What is change in the kinetic energy of the skater
A 10-m plank is being moved by rolling it over two cylindrical logs placed 2 m from either end of the plank. How far can the plank be moved before the rear log reaches the end of the plank
if 470 J of heat are added to 65 moles of a monatomic gas at constant volume, how much does the temperature of the gas increase
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 304 K, What is the coefficient of performance of this refrigerator
A typical power transmission line carries a current of 1000 A about 30.0 meters above the ground. The magnetic field generated at groundlevel by the current is a matter of concern to those who live nearby.
question1a painter of mass 140.0 kg stands on a platform of mass 55.0 kg and pulls on two ropes that hang over pulleys
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