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An electron and a proton are each accelerated through a potential difference of 21 million volts. Find the momentum (in MeV/c) and kinetic energy of each. Compare with the results when using the cla
Suppose that the microwave radiation has a wavelength of 12.4cm . How many photons are required to heat 235 mL of coffee from 25.0 C to 62.0 C?
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injur
A microwave oven operates at 2.40 GHz. What is the wavelength of the radiation produced by this appliance? in nano meters
Assuming the intensity falls off as the inverse of the distance squared, what was the decibel level on Rodriguez Island, 4800 km away?
Hospital X-ray generators emit X rays with wavelength of about 15.0 nanometers (nm), where 1nm=10^9-m. What is the energy of a photon of the X rays?
A charge of +5.85 µC resides at the origin. (a) What is the flux through any Gaussian surface enclosing this charge? (b) What is the strength of the field due to the charge at a distance of 8.
In that region, it travels a horizontal distance of 2.25 cm and has a constant downward acceleration of magnitude 1.00 multiplied by 1017 cm/s2 due to the charged plates. (a) Find the time required
If the shot is made from a horizontal distance of 11.00 m and must be accurate to 0.17 m (horizontally), what is the range of initial speeds allowed to make the basket?
The x-component and y-component of your moves are the following, respectively, in meters: (20 and 60), then (bx and -70), then (-20 and cy), then (-63 and -75)What is the the magnitude of the overal
A second order reaction in ethanoic solution has a prefactor of 10^13 hz and an activation energy of 0.9 eV. Draw an Arrheniusplot over the range of possible reaction temperatures(between thefreezin
How far will the pilot travel in the flight? Assume there is no wind during either flight.
Use the kinetic-molecular theory to explain what happens as an unknown solid is heated from below its freezing point to beyond itsboiling point.
Fred got into his motorboat and motored for 12.5 km at a bearing of 30 degrees north of east. He then abruptly made a 150 degree right turn and motored for another 13.5 km to his destination. How fa
What must the total molarity of solutes if the sap rises tothe top of the tree by osmotic pressure at 20oC . Assumethat groundwater woutside the tree is pure water and that the density of the sap is 2
During a circus performance, a 71.2-kg human cannonball is shot out of a 16.8-m-long cannon. If the human cannonball spends 1.06 s in the cannon, determine the average net force exerted on him in th
If you run two 45 watt headlights for 2.0 hours using your battery as the energy source, how many grams of lead sulfate will be produced in the battery?
A rock is thrown vertically upward from ground level at time t = 0. At t = 1.8 s it passes the top of a tall tower, and 2.0 s later it reaches its maximum height. What is the height of the tower?
When aqueous solutions of lead (II) ion are treated with potassium chromate solution, a bright yellow precipitate of lead(II) chromate, PbCrO4, forms.
The electric field intensity between two large, charged, parallel metal plates is 8400 N/C. The plates are 0.06 m apart. What is the electric potential difference between them?
The charge per unit area on each plate has a magnitude of s = 1.10 x 10-4 C/m2. The force on q1 due to q2 equals the force on q1 due to the electric field of the parallel plate capacitor. What is th
A line of positive charge is formed into a semi circle of radius R = 60.0 cm. The charge per unit length along the semicircle is described by the expression λ=λ0 cos θ. The total
If phosphoric acid is pour into an aluminum can, what would thereaction look like? We did this in lab to see if aluminum ofa soda can would leach into the soda, which was substituted with H3PO4 solu
A 70.0-kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations? (a) when the elevator is accelerating upward with an acceleration of 1.80 m/s2
Determine the average value of the translational kinetic energy of the molecules of an ideal gas at (a) 12.0°C and (b) 104°C. What is the translational kinetic energy per mole of an ideal ga