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Elanso [62]
2 years ago
15

A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling on an adjacent wal

l at a point having coordinates (3.1, 0.5), where the units are meters, what is the distance of the fly from the corner of the room? Answer needs to be in appropriate significant figures.
Physics
1 answer:
asambeis [7]2 years ago
5 0

Answer:

The distance is 3.1 m

Explanation:

The position vector of the fly relative to the corner of the wall is

r = (3.1, 0.5).

The distance of the fly from the corner will be calculated as the magnitude of the vector "r"

magnitude of vector  r = \sqrt{(3.1 m)^{2} + (0.5 m)^{2}} = 3.1 m

Since the numbers to be added have only one decimal place 3.<u>1</u> and 0.<u>5</u>, the result of the sum will have to have one decimal place. The result of the square root will also have one decimal place.

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3 years ago
How do objects move under the influence of gravity?
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Under the influence of gravity, objects just move down to the earth.

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4 0
3 years ago
Which type of lever is exemplified by the flexing of the forearm by the biceps brachii muscle?
ira [324]

Answer:

a third class lever

Explanation:

The third class or interpower lever is a lever that enables fast and dynamic movements. It places the power between the resistance and the support, so the resistance arm is longer than the power.

It is the most frequent type of lever in the human body and as an example we can put the action of the brachial biceps in the flexion of the elbow, where the biceps is inserted in the forearm between the elbow that is behind and the resistance that would be displaced towards the hand by the weight of the load attached to the weight of the forearm.

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8 0
3 years ago
A coil is connected in series with a 12.6 kΩ resistor. An ideal 65.2 V battery is applied across the two devices, and the curren
ivolga24 [154]

To solve the problem, start by applying the concepts related to current in an RL circuit. The current is defined exponentially and using Ohm's law we can put the initial current in terms of the voltage and resistance. Consecutively with the calculated time constant we can find the respective inductance. For the second part we will apply the electrical potential energy connectors to find the amount of stored energy.

PART A)

i = i_0 (1-e^{-t/T})

i = (V/R)(1-e^{-t/T})

0.00402 = (65.2/12600)(1-e^{-0.00402/T})

T = 0.002679s

T = L/R

Inductance can be defined then,

L = RT

L = (12600)(0.002679)

L = 33.75H

PART B) Now the energy is given under the terms:

E = \frac{1}{2}Li^2

E = \frac{1}{2} (33.75)(0.00402)^2

E = 0.0002727J

Therefore the energy stored in the coil at this same moment is 0.0002727J

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3 years ago
What is newton's second law of motion?
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<span>the acceleration of an object is depedent upon two variables


</span>
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3 years ago
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