Physics, 28.09.2019 08:30 kstyleszdance
1. how is the density of a substance calculated? 2. if the shape of an object is irregular, like a stone, how can you measure its volume? 3. if the volume of a cube of wood is15.625 cm3 and its mass is 10.00 grams, show the calculation for the density of the wood. 4. based on the density of the wood that you calculated above, would the wood float or sink if it is placed in a bowl of water? explain your answer. remember that the density of liquid water is 1.00 g/cm3. 5. a marble or small sphere, made of stone, is found to have a mass of 3.05 grams.
Answers: 1
Physics, 22.06.2019 16:50
Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?
Answers: 2
Physics, 22.06.2019 23:30
An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.
Answers: 2
Physics, 23.06.2019 01:10
Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the
Answers: 1
1. how is the density of a substance calculated? 2. if the shape of an object is irregular, like a...
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