Physics, 09.10.2020 06:01 loganfreeman04
6. Two toy blocks are made of the same material. One has a mass of 20 grams and its dimensions are 2
cm x 4 cm x 1 cm. The second block measures 4 cm x 3 cm x 2 cm. Calculate the mass of the second
block.
Answers: 1
Physics, 22.06.2019 04:20
Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.
Answers: 3
Physics, 22.06.2019 18:30
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Physics, 22.06.2019 18:30
Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.
Answers: 1
Physics, 23.06.2019 00:00
Boiling water is an example of physical change. true or false
Answers: 2
6. Two toy blocks are made of the same material. One has a mass of 20 grams and its dimensions are 2...
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