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The air inside a bicycle tire pump has 236 joules of work done on it as 89.8 joules of heat are added to it. What is the change in internal energy of the air?
When ethanol (empirical formula C2H6O) burns, it combines with oxygen and forms carbon dioxide and water. Which of the following is the balanced chemical reaction for the burning of ethanol?
An electromagnetic wave is represented by the magnetic field represented mathematically by B = Bosin[(6.591 x 108 s-1)t + (2.198 m-1) x], Determine the frequency and wavelength of the wave
A cylindrical glass of water (H2O) has a radius of 4.42 cm and a height of 11.8 cm. How many moles of water molecules are contained in the glass
Through a hard sneeze, your eyes might shut for 0.70s. If you are driving a car at 100 km/h during such a sneeze, how far does the car move for the duration of that time.
An electron travelling east with velocity 7.0 x10^5 m/s enters the same electric field region as in the previous problem. How far does it go before being turned backward
An electron moving at 3.8 x 103 m/s in a 1.3 T magnetic field experiences a magnetic force of 1.75 x 10-16 N. What angle (in degrees, between 0 and 90°) does the velocity of the electron make with the magnetic field
Two equally charged, 1.00 {rm g} spheres are placed with 2.00 {rm cm} between their centers. When free, each begins to acceleration speed at 225 {rm m/s^2}. What is the magnitude of the charge on each sphere.
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 1.30 m, are floating at rest on Space Station Freedom between two metal bulkheads.
an electron in an oscilloscope tube is traveling horizontally with a speed of 4.4times106ms . it passes through a 1.9cm
Two long, parallel wires are separated by a distance of 3.40. The force per unit length that each wire exerts on the other is 3.20×10-5, and the wires repel each other. The current in one wire is 0.6690.
A 0.12 m3 rigid tank initially contains refrigerant R-134a at 1 MPa and 100% quality. find the mass of the refrigerant that has entered the tank
Makayla is talking to Mia about the whether we ever landed on the Moon. Mia says," I have a theory about that." Using 3 - 4 complete sentences, what is wrong with Mia's use of the term "theory" in this instance
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