Physics, 07.04.2021 16:10, alexmarche4675
What is the mass of a spherical stone with a diameter 25 mm,
if the density of the stone is 2900 kg m-3?
A 2.82 x 10-9 kg
B 24g
C 190 g
D 3.55 x 108 kg
[1]
(Total for Question 2 = 1 mark)
Answers: 2
Physics, 22.06.2019 08:00, hartzpeyton136
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
Answers: 3
Physics, 22.06.2019 16:50, Walkman2092
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
What is the mass of a spherical stone with a diameter 25 mm,
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