Examiners: F Acheampong & Elmela Date: 30th October, 2015
Pwo7
TA/SBBS 109/15 /B
Index Number:..
4. At what Celsius temperature will the Kelvin scale doubles the Celsius
reading? (2 marks)
5. A body of mass 20 kg falling freely attains a velocity of 9.5 m/s at height of
2.3 m above the ground. Calculate the total energy at that height. (g = 10 m/s)
(3 marks)​

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)