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A moving particle encounters an external electric field that decreases its kinetic energy from 8920 eVto 7400 eV as the particle moves fromposition A to position B. The electric potentialat A is -52.0 V, and the electricpotential at B is +26.9 V. Determine the charge of the particle. Include the algebraic sign (+or −) with your answer.
a gun has a spring constant of 10N/cm. when the gun is inclined upward by 30 degree to the horizontal a 10 g ball is shot to the height of 2 m above the muzzle of the gun
Your medieval history class is constructing a trebuchet, a catapult-like weapon for hurling stones at enemy castles, Find an expression for the angle that will maximize the range of a projectile launched with speed from height above level ground
A 0.30 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20 kg puck that is initially moving along the x axis with a velocity of 1.8 m/s. Find the fraction of kinetic energy lost in the collision
Determine the enthalpy change and internal energy change of ammonia in J/mole, as it is heated from 350 K to 600 K, using the ideal gas heat capacity given by the Shomate Equation.
Standing on the surface of a small spherical moon whose radius is 6.81·104 m and whose mass is 7.07·1018 kg, What maximum height above the surface of the moon will the rock reach
Two particles with charges +5e and -5e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 6.78 x 10-13 m apart
A feather is dropped on the moon from a height of 1.40 meters. find the time for the feather to fall to the surface of the moon
On a particular afternoon in Houston, the nitrogen (N2) molecules in the air have an rms speed of 511 m/s. What is the rms speed of the carbon dioxide (CO2) molecules
An air mass has a temperature of 68F at 970hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing, the air mass now has a temperature of 50F and a pressure of 750hPa. Find the initial and final values of:
At a coal-burning power plant a steam turbine is operated with a power output of 548 MW. At what rate must heat be supplied to the power plant by burning coal
Particle A has a mass of 5.5 g, particle B has a mass of 1.3 g. Particle A is located at the origin, particle B at the point (x, y) = (25 cm, 0). What is the location of the center of mass
A 5.27-kg object passes through the origin at time t = 0 such that its x component of velocity is 4.95 m/s and its y component of velocity is -3.03 m/s.
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