How is coal used to generate electricity?

1) A box is 16m long, 28m broad and 10m high. what is the volume of 100 similar boxes?2) When was S. I unit introduced? (3) 0How many fundamental units are there? What are they? (4) Write down the formulae of area and volume.

A child of mass 49.7 kg sits on the edge of a merry-go-round with radius 2.7 m and moment of inertia 311.589 kg m2. The merrygo-round rotates with an angular velocity of 2.8 rad/s.

A camper dives from the edge of a swimming pool at water level with a speed of 8.0 m/s at an angle of 30.0° above the horizontal.

Any liquid or material that is likely to catch fire should be kept away from a a. balance b. test tube c. chemicals d. hot plate Pretty certain it is D.

Which of the following statements is an example of absolute time? Evan is older than James. This car is older than that one. Bobby is exactly three years old today. Emily is the youngest of all four children.

A flask containing neon gas is connected to an open-ended mercury manometer. The open end is exposed to the atmosphere, where the prevailing pressure is 745 torr. The mercury level in the open arm is 50.

1. f= 2. v= 3. 2 = 4. T= 8 m/s 8 sec 8 Hz 8 m Match the letters with the measurements

A skier speeds down a smooth ski slope which is at an angle of θ = 23° with the horizontal. The mass of the skier is 71 kg. Take the downhill direction to be positive and uphill to be negative.

An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 10.0 m/s in 3.30 s.

Why do skiers often wear sunglasses while they are skiing