Calorimetry Tutorial
... Heat Capacity • The temperature change experienced by an object when it absorbs a certain amount of heat energy. • The heat required to raise the temperature of a substance by 1K or 1ºC q = CΔT q = heat energy released or absorbed by the rxn (J) C = heat capacity (J/K) ΔT = change in temperature (K ...
... Heat Capacity • The temperature change experienced by an object when it absorbs a certain amount of heat energy. • The heat required to raise the temperature of a substance by 1K or 1ºC q = CΔT q = heat energy released or absorbed by the rxn (J) C = heat capacity (J/K) ΔT = change in temperature (K ...
Static Electricity
... Does this mean that there’s a lot of electrical energy? Well, the charge transferred to the balloon is typically less than a millionth of a Coulomb (Remember, one Coulomb is charge is a HUGE amount of charge) There’s a LOT of difference Voltage = Energy / charge between Voltage and Energy! Energy = ...
... Does this mean that there’s a lot of electrical energy? Well, the charge transferred to the balloon is typically less than a millionth of a Coulomb (Remember, one Coulomb is charge is a HUGE amount of charge) There’s a LOT of difference Voltage = Energy / charge between Voltage and Energy! Energy = ...
Potential Energy of a system of charges
... Initially, total energy = K.E. of He+2 (P.E. = zero since d = ∞) At closest interaction, total energy = P.E. = keQ1Q2 / d d = keQ1Q2 / K.E. K.E. = 1/2 mHev2 = 1/2 (4*1.67x10-27kg)(1x107m/s)2 = 3.3x10-13 J d = (9x109 Nm2/C2)(2)(79)(1.6x10-19C)2 / (3.3x10-13J) = 1.1x10-13 m = 110 fm Size of nucleus mu ...
... Initially, total energy = K.E. of He+2 (P.E. = zero since d = ∞) At closest interaction, total energy = P.E. = keQ1Q2 / d d = keQ1Q2 / K.E. K.E. = 1/2 mHev2 = 1/2 (4*1.67x10-27kg)(1x107m/s)2 = 3.3x10-13 J d = (9x109 Nm2/C2)(2)(79)(1.6x10-19C)2 / (3.3x10-13J) = 1.1x10-13 m = 110 fm Size of nucleus mu ...
SOLID-STATE PHYSICS II 2008 O. Entin-Wohlman
... of the effective hole masses and the effective electron masses, is of order unity. All these considerations are valid when the temperature is sufficiently low, so that all our assumptions above are valid. The doped (extrinsic) case. When the semiconductor is doped, the impurities contribute electron ...
... of the effective hole masses and the effective electron masses, is of order unity. All these considerations are valid when the temperature is sufficiently low, so that all our assumptions above are valid. The doped (extrinsic) case. When the semiconductor is doped, the impurities contribute electron ...
12. REASONING The electric potential difference between the two
... 44. REASONING The charge q stored on the plates of a capacitor connected to a κε A battery of voltage V is q = CV (Equation 19.8). The capacitance C is C = 0 d (Equation 19.10), where κ is the dielectric constant of the material between the plates, ε0 is the permittivity of free space, A is the are ...
... 44. REASONING The charge q stored on the plates of a capacitor connected to a κε A battery of voltage V is q = CV (Equation 19.8). The capacitance C is C = 0 d (Equation 19.10), where κ is the dielectric constant of the material between the plates, ε0 is the permittivity of free space, A is the are ...
Chapter 16 Electric Potential Energy and Capacitance
... If this is reversed then work must be done AGAINST the potential If you want to move a positively charged object from low to high you must do work against the potential therefore the particle slows down If you want to move a positively charged object from low to high you must do work against the pot ...
... If this is reversed then work must be done AGAINST the potential If you want to move a positively charged object from low to high you must do work against the potential therefore the particle slows down If you want to move a positively charged object from low to high you must do work against the pot ...
Document
... Electric potential, work and potential energy: work to bring a charge somewhere is W = –qV (signs!). Potential energy of a system = negative work done to build it. Conductors: field and potential inside conductors, and on the surface. Shell theorem: systems with spherical symmetry can be thought of ...
... Electric potential, work and potential energy: work to bring a charge somewhere is W = –qV (signs!). Potential energy of a system = negative work done to build it. Conductors: field and potential inside conductors, and on the surface. Shell theorem: systems with spherical symmetry can be thought of ...
Practice Problems with Solutions
... 11. You throw a ball straight up into the air. If you consider air resistance, which takes more time: the upward trip or the downward trip? Analyze using three different systems. 11. Sol’n: Whenever the ball is moving, air resistance acts to decrease its kinetic energy. (a) Using the ball as our sys ...
... 11. You throw a ball straight up into the air. If you consider air resistance, which takes more time: the upward trip or the downward trip? Analyze using three different systems. 11. Sol’n: Whenever the ball is moving, air resistance acts to decrease its kinetic energy. (a) Using the ball as our sys ...
Physics 202, Lecture 4 Gauss`s Law: Review
... Note: if q negative, final potential energy negative Particles will move to minimize their final potential energy! ...
... Note: if q negative, final potential energy negative Particles will move to minimize their final potential energy! ...
Chapter 8 - NUS Physics
... Example. A 1.00-kg object slides to the right on a surface having a coefficient of kinetic friction 0.250. The object has a speed of vi = 3.00 m/s when it makes contact with a light spring that has a force constant of 50.0 N/m. The object comes to rest after the spring has been compressed a distance ...
... Example. A 1.00-kg object slides to the right on a surface having a coefficient of kinetic friction 0.250. The object has a speed of vi = 3.00 m/s when it makes contact with a light spring that has a force constant of 50.0 N/m. The object comes to rest after the spring has been compressed a distance ...
CONSERVATIVE FORCE SYSTEMS
... Part I. Setting up the apparatus and determining the spring constant (k) 1. Set the scale of the Jolly balance to zero position by adjusting the knurled wheel. Hang the spring on its movable arm if it is not already there. Adjust the pointer tip of the balance to the lowest point of the spring and l ...
... Part I. Setting up the apparatus and determining the spring constant (k) 1. Set the scale of the Jolly balance to zero position by adjusting the knurled wheel. Hang the spring on its movable arm if it is not already there. Adjust the pointer tip of the balance to the lowest point of the spring and l ...
