
What is the velocity of a 1,500 kg car if its kinetic energy is 300 kJ

A single constant force 25.1 N acts on a parti cle of mass 6.53 kg. The particle starts at rest at t = 0. What is the instantaneous power delivered by the force at t = 4.31 s? Answer in units of

The table shows test data for a corvette, one of the fastest cars made in the US. The car is moving in a straight line (the xaxis). Time (m/s) 0 2.10 20.0 53.0 Speed (mi/hr) 0 60.0 210 260 Ca

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What will be the current in each resistor?

What will be the voltage drop across each resistor?

What will be the total power delivered?

Compare the kinetic energy of an 900 kg car travelling at 30 m/s, and a 1,800 kg car at the same speed.

How much work is done moving a 2.5 kg book to a shelf 3.0 m high? a.What is the potential energy of the book in #7 above? b.If the book in #7 above, falls off the shelf, how much kinetic energy

150 pound man runs up a stairway 25 feet above ground level in 10 s. How much work did the man do?" "
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Sample Questions
 The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
 (a) What is the average angular acceleration of the Earth?
 (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
1. Can you show me step by step how to solve this problem?:
 A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the 1.5m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19kg/m^3. Find the absolute pressure of the helium gas
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?