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Ann [662]
3 years ago
10

Foraging bees often move in straight lines away from and toward their hives. Suppose a bee starts at its hive and flies 680 m du

e east, then flies 430 m west, then 620 m east.
Physics
1 answer:
lys-0071 [83]3 years ago
8 0

Represent the motion in the number line.

Movement to the east is movement to the negative side. Movement to the west is movement to the positive side.

Total displacement = -680m + 430m - 620m = -870m

Total displacement = 860m to the east.

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If a car accelerates at a uniform 4.0 m/s, how long will it take to reach a speed of 36.0 m/s,
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3 years ago
A solid ball, a solid disk, and a hoop, all with the same mass and the same radius, are set rolling without slipping up an incli
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Answer:

d ) is the answer.

Explanation:

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V = ωR

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kinetic energy of Disk - 1/2 MV² + 1/2 I ω² ,ω is angular velocity and

V = ωR

kinetic energy of Disk - 1/2 MV² + 1/2 x 1/2 MR² ω²

= 1/2 MV² + 1/4 MR² ω²

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kinetic energy of Hoop - 1/2 MV² + 1/2 I ω² ,ω is angular velocity and

V = ωR

kinetic energy of hoop - 1/2 MV² + 1/2  MR² ω²

= 1/2 MV² + 1/2 MR² ω²

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=  MV²

Kinetic energy is largest in case of hoop and least in case of sphere . So hoop will go up to the highest point and sphere will go to a height which will be least among the three.

7 0
3 years ago
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Reil [10]

Answer:

Explanation:

usually electricity is sold in the units of kWh, which I will ASSUME is the case here.

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together they would cost           1.45 p

which would be rounded down to 1 p

7 0
3 years ago
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