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omeli [17]
3 years ago
10

An ant walks 2\,\text m2m2, start text, m, end text to the right and then climbs 1 \,\text m1m1, start text, m, end text up a wa

ll.How many degrees above the ground is the ant compared to its initial position?
Physics
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer:

26.56°

Explanation:

given,

horizontal distance travel by the ant = 2 m

vertical distance travel by the ant = 1 m

angle of the ant above the initial point = ?

using trigonometric function

tan \theta = \dfrac{h}{x}

θ is the angle of the ant form initial position

h is the height on the wall

x is the horizontal distance covered by the ant

tan \theta = \dfrac{1}{2}

\theta =tan^{-1}(0.5)

\theta =26.56^0

hence, the angle made by the ant from the initial position is equal to 26.56°

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Starting from rest, a 5.0 kg block slides 2.4 m
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Answer:I IN theTHE ADVENTUREADVENTURES ofor concernsconcernsconcerns don't s andand

Explanation:

6 0
3 years ago
A pipe open only at one end has a fundamental frequency of 266 Hz. A second pipe, initially identical to the first pipe, is shor
Alika [10]

Answer:

1.16cm were cut off the end of the second pipe

Explanation:

The fundamental frequency in the first pipe is,

<em><u>Since the speed of sound is not given in the question, we would assume it to be 340m/s</u></em>

f1 = v/4L, where v is the speed of sound and L is the length of the pipe

266 = 340/4L

L = 0.31954 m = 0.32 m

It is given that the second pipe is identical to the first pipe by cutting off a portion of the open end. So, consider L’ be the length that was cut from the first pipe.

<u>So, the length of the second pipe is L – L’</u>

Then, the fundamental frequency in the second pipe is

f2 = v/4(L - L’)

<u>The beat frequency due to the fundamental frequencies of the first and second pipe is</u>

f2 – f1 = 10hz

[v/4(L - L’)] – 266 = 10

[v/4(L – L’)] = 10 + 266

[v/4(L – L’)] = 276

(L - L’) = v/(4 x 276)

(L – L’) = 340/(4 x 276)

(L – L’) = 0.30797

L’ = 0.31954 – 0.30797

L’ = 0.01157 m = 1.157 cm ≅ 1.16cm  

Hence, 1.16 cm were cut from the end of the second pipe

6 0
3 years ago
Why is the mechanical advantage of a bottle opener always greater than 1?
Katen [24]
For a lever, the mechanical advantage is the ratio of the lever arms. Since the lever arm of the opener is always greater than that of the output arm, the mechanical advantage is greater than 1.
6 0
3 years ago
An electric fan is running on HIGH. After the LOW button is pressed, the angular speed of the fan decreases to 84.7 rad/s in 2.9
ale4655 [162]

The initial angular speed of the fan will be 55.0 rad/sec. The angular speed of the fan decreases to 84.7 rad/s in 2.96 s.

<h3>What is angular acceleration?</h3>

Angular acceleration is defined as the pace of change of angular velocity with reference to time.

Given data;

Final angular speed,\rm \omega_f = 84.7 rad/s

Initial angular speed, \rm \omega_i = ?

Time period,t= 2.96 s

Angular deceleration = 47.2 rad/s²

\rm \alpha =\frac{\omega_f-\omega_i}{t} \\\\\rm 47.2 =\frac{84.7-\omega_i}{2.96} \\\\ \omega_i = 55.0  \ rad/sec

Hence the initial angular speed of the fan will be 55.0 rad/sec.

To know more about angular acceleration refer to the link ;

brainly.com/question/408236

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7 0
2 years ago
If I was driving at 50 miles an hour and hit a car at a stop light, how would there car react after it is hit?
MA_775_DIABLO [31]

Answer:

The answer is  C.move forward rapidly until stopped.

Explanation:

50 miles an hour is a very high speed. The momentum transfer to the car at stop light will move the car forward rapidly until its brake is able to stop it.

4 0
3 years ago
Read 2 more answers
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