
6. (10 pts) What is the kinetic energy in joules) of a 4000 lb car moving...
1.) Kinetic Energy Part A) What is the kinetic energy of a proton moving at 1.40x106 m/s? Part B)How about a 1300 kg car moving at 60 mph?
4. (20 pts) You place 150 mL of water at 400C in the refrigerator. How much energy does the refrigerator remove from the water to make ice at 0OC? (Note 1: 1 mL H20 = 1 cm' = 1 g. Note 2: See Table 4.4 in your text, along with the subsequent example.) 5. (15 pts) How much heat must be applied to a 1 kg pan to raise its temperature from 25°C to 185°C if: a. The pan is...
Q) What is the kinetic energy, in joules, of a molecule of oxygen moving at a speed of 255 m/s(use the appropriate prefix to avoid exponential notation) a) The equation for kinetic energy is ½mv2, and is in units of joules. What are the component units for joules in terms of mass and velocity? kg m^2/s^2 b) From the previous part, we know that the mass needs to be in units of kg. What is the mass of an oxygen...
What is the kinectic energy of a proton moving at 1.40 x 10^6 m/s? How about a 1300 kg car moving at 60 mph?
i) Mass 1 is initially moving in the +x direction and has 20 Joules of kinetic energy. It collides perfectly elastically with mass 2 moving at in the -x direction with 14 Joules of kinetic energy. After the collision, mass 2 has 20 Joules of kinetic energy. How much kinetic energy does mass 1 have after the collision in Joules? (Note: the masses are not needed to answer this question.) ii) Mass 1 of 10 kg is initially moving at...
What is the kinetic energy in Joules of a 8,699.2 kg truck moving at 63.9 km/hr?
What is the kinetic energy in Joules of a 7,320.4 kg truck moving at 81.1 km/hr?
Question 10 1 pts How much work (in Joules) is required to change the kinetic energy of an object by 42 Joules?
11. The kinetic energy of an 80-kg object moving at 10 m/s is 2000 J 4000 J 6000 J 100 J 1000 J 12. The kilowatt-hour is a unit of speed power force momentum energy 13. Energy sources used today (in the U.S.) are, mostly, from: hydroelectric dams solar panels nuclear power stations geothermal sources fossil fuels 14. What is the velocity of a 30-kg box with a kinetic energy of 6,000 J? 64 m/s 6.0 m/s 18 m/s 20...
Kinetic Energy- KE-1 a) A 1,500kg car is traveling at 30.0m/s. How many joules of kinetic enorekye energy as the KE-2 a) Two objects with masses m -20.0 have? does the car b) Find the speed in km/hr for a 7.00kg bowling ball to have the same etic energy Find the ratio E/Ex g and my-60.0kg are both traveling with the same speed V. b) Two objects with identical masses m are traveling with speeds V1 20.0m's c) In part...