Physics, 16.10.2019 05:10 charleetrill8304
This time, william tell is shooting at an apple that hangs on a tree (fig. 3.32). the apple is a horizontal distance of 20.0 m away and at a height of 4.00 m above the ground. if the arrow is released from a height of 1.00 m above the ground and hits the apple 0.500 s later, what is the arrow’s initial velocity?
Answers: 1
Physics, 21.06.2019 15:30
What defines the mass number of an isotope? a. the sum of the neutrons and protons b. the sum of the neutrons and electrons c. the number of neutrons d. the number of protons
Answers: 1
Physics, 22.06.2019 09:30
Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec
Answers: 3
Physics, 22.06.2019 10:30
The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water
Answers: 2
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 1
This time, william tell is shooting at an apple that hangs on a tree (fig. 3.32). the apple is a ho...
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