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guajiro [1.7K]
3 years ago
6

In New Hampshire, the length of time ice covers on Mirror Lake each year has declined by _______. a. 1/2 day per year b. 1 day p

er year c. 1 1/2 days per year d. 2 days per year
Physics
2 answers:
Licemer1 [7]3 years ago
8 0

Answer:

a.

1/2 day per year

Explanation:

just took the test

ratelena [41]3 years ago
6 0

Answer:

A

Explanation:

Edge 2020

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What is the relationship between the electric force and each one of the charges?
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Explanation: Electrostatic force is directly related to the charge of each object. So if the charge of one object is doubled, then the force will become two times greater.

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Water vapor enters the atmosphere through
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Describe the relationship between a moving objects mass and its kinetic energy
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KE = 1/2 mv^2 is the relationship betwee mass and kinetic energy
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A car is 200 m from a stop sign and traveling toward the sign at 40.0 m/s. At this time, the driver suddenly realizes that she m
victus00 [196]

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The acceleration of the car will be a=9600m/sec^

Explanation:

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Now from second equation of motion s=ut+\frac{1}{2}at^2

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6 0
3 years ago
If the coefficient of kinetic friction between tires and dry pavement is 0.84, what is the shortest distance in which you can st
liberstina [14]

Answer:

The shortest distance in which you can stop the automobile by locking the brakes is 53.64 m

Explanation:

Given;

coefficient of kinetic friction, μ = 0.84

speed of the automobile, u = 29.0 m/s

To determine the  the shortest distance in which you can stop an automobile by locking the brakes, we apply the following equation;

v² = u² + 2ax

where;

v is the final velocity

u is the initial velocity

a is the acceleration

x is the shortest distance

First we determine a;

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∑F = ma

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-Fk = ma

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- 0.8 x 9.8 = a

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v² = u² + 2ax

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x = 841 / 15.68

x = 53.64 m

Thus, the shortest distance in which you can stop the automobile by locking the brakes is 53.64 m

4 0
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