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Assignment:
Global warming is a problem. Most of the solutions available today are based on reducing carbon output or capturing carbon from the atmosphere. These solutions may be too little, too late - we need ideas on a larger scale. For the sake of this question, assume that global carbon emissions will not be reduced. Give us two original ideas to solve the global warming problem that do not involve carbon. Provide sufficient justification as to why these solutions could have the scale needed to make a difference.
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
A system does 100 J of work on its surroundings and gains 50 J of heat in the process. Calculate the change in the internal energy.
1. an electric motor performs 2000 j of work while lifting a 50 kg mass. how far does it lift the mass?it it takes
A solenoid is wound with 270 turns per centimeter. An outer layer of insulated wire with 200 turns per centimeter is wound over the solenoid's first layer of wire. What is the direction of the magnetic field at the center for this configuration
(a) What minimum constant acceleration does the airplane require for it to liftoff after a takeoff run of 280 m? (Enter the magnitude only.) (b) How long does it take the airplane to reach liftoff speed?
a wall clock has a minute hand with a length of 0.48 m and an hour hand with a length of 0.26 m. take the center of the
A mass of 120 kg is suspended on a rope and a steel beam as shown on the diagram below. d1 = 2 m, d2 = 4m, and d3 = 5m. Draw a diagram that shows all the forces involved in this problem. Find the tension in the rope and the steel beam.
Consider two point particles that have charge +e, are at rest, and are separated by 4.10 x 10-15 meter. Find how much work was required to bring them together from a very large separation distance
A water heater can generate 8500 kcal/h. How much water can it heat from 15°C to 50°C in one hour
The escape speed of a particular planet with a radius of 8.600e+6 m is 14,500 m/s. What is the mass of the planet
A 25 kg child at a playground runs with an initial speed of 2.5 m/s along a path tanget to the rim of a merry-go-round with a radius of 2.0 m and jumps on. Find the angular velocity of the child and merry-go-round
A 4.0 cm diameter loop with resistance 0.10 ohms around a 2.0 cm diameter solenoid. The solenoid is 13cm long, has 100 turns, and carries the current shown.
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