3. The temperature of water in a swimming pool decreases by 5.0 K during the night. The mass of the water in the pool is 5.6 x 105 kg. How much heat does the water lose?
The specific heat capacity of water is 4.19 x 103 J/gK
O 1.3 x 1023
O 2.4 x 1010)
O 6.7x102)
1.2 x 1010)

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.