Calculate the amount of heat required to raise temperature
Ethylene glycol, the main component of automotive engine coolant, has a specific heat of 2.35 J/g.oC. Calculate the amount of heat required to raise the temperature of 1.00 kg of ethylene glycol from 20.0 oC to 80.0 oC.
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A dipole with dipole moment 1.6 is oriented at 31 to a 5.0 electric field. What is the magnitude of the torque on the dipole?
A 3.0 m long rigid beam with a mass of 120 kg is supported at each end. An 85 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam?
An automobile tire is pumped up to a gauge pressure of 2.0 × 105 Pa when the temperature is 27°C. What is its gauge pressure after the car has been running on a hot day so that the tire temperature is 77°C?
A space station, in the form of a wheel 125 m in diameter, rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) t
Find the length of a bicycle being ridden at a speed of 20.0 mi/h as measured by an observer sitting on a park bench, given that its proper length is 1.90 m.
A 35.0g bullet moving at 475m/s srikes a 2.5kg bag of flour that is on ice, at rest. The bullet passes through the bag and exits it at 275m/s. How far is the bag moving when the bullet exits?
A 100.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M LiOH. Determine the pH of the solution before the addition of any LiOH.
What is the differences between Al-Bakri and Ibn Battuta regarding to their report about the history of Medieval west Africa?
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