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aksik [14]
3 years ago
14

Choose the appropriate word choices below that correctly complete the blanks in the following three sentences: At the beginning,

the object is at the origin and the object is moving to the ________. At first, the object is _______ due to a constant________ acceleration. In the second part of the motion, the object is moving to the _________ and _________.

Physics
1 answer:
Misha Larkins [42]3 years ago
3 0

Answer:

The correct Option is (a) please see attachment containing complete question.

Explanation:

1) The motion is basic to and fro motion of an object.

2) Considering the motion as Simple Harmonic Motion (SHM), the graph tells us that the pendulum appears to be moving to the left and slowing down being acted upon positive acceleration.

3) Reaching the left extreme, it stops i.e. V = 0 m/s, and then starts moving to the right due to the component of gravity (g), speeding up.

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Factor that changes because of the manipulated variable
jeyben [28]

Answer:

factor that changes because of the manipulated variable: A. Manipulated variable

xXxAnimexXx

6 0
3 years ago
An antelope moving with constant acceleration covers the distance 68.0 m between two points in time 7.50 s. Its speed as it pass
Darya [45]

Answer:

A)The speed of the antelope at the first point is 2.43 m/s.

B) The acceleration of the antelope is 1.77 m/s²

Explanation:

The equations of the position and velocity of the antelope is given by the following expressions:

x = x0 + v0 · t + 1/2 · a ·t²

v = v0 + a · t

Where:

x = position of the antelope at time t

x0 = initial position

v0 = initial velocity

t = time

a = acceleration

v = velocity at time t

A) Let´s place the center of the frame of reference at the first point. The equation of position at t = 7.50 s will be:

x = x0 + v0 · t + 1/2 · a ·t²

68.0 m = 0 m + v0 · 7.50 s + 1/2 · a · (7.50 s)²

We also know that at the second point the velocity is 15.7 m/s. Then at t = 7.50 the velocity will be 15.7 m/s.

v = v0 + a · t

15.7 m/s = v0 + a · 7.50 s

We can solve this equation for "a" and replace it in the equation of height to obtain "v0". Then:

a = (15.7 m/s - v0) / 7.50 s

Replacing it in the equation for position:

68.0 m = 0 m + v0 · 7.50 s + 1/2 · a · (7.50 s)²

68.0 m = v0 · 7.50 s + 1/2 · (15.7 m/s - v0) / 7.50 s · (7.50 s)²

68.0 m = v0 · 7.50 s + 7.85 m/s · 7.50 s - 3.75 s · v0

68.0 m - 7.85 m/s · 7.50 s = 3.75 s · v0

(68.0 m - 7.85 m/s · 7.50 s) / 3.75 s = v0

v0 = 2.43 m/s

The speed of the antelope at the first point is 2.43 m/s.

B) The acceleration of the antelope will be:

a = (15.7 m/s - v0) / 7.50 s

a = (15.7 m/s - 2.43 m/s) / 7.50 s

a = 1.77 m/s²

The acceleration of the antelope is 1.77 m/s²

5 0
3 years ago
Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition react
dedylja [7]

Answer:

It's A

Explanation:

Because I know it is

4 0
3 years ago
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The speed of the bus is 40km/hr. what does it mean?​
kiruha [24]

Answer:

The speed of the bus is 40 km/hr so this means the bus is travelling at a speed of 40 km per hour.

5 0
3 years ago
3. An automobile accelerates 1.77 m/sover 6.00 s to reach the freeway speed at
Effectus [21]

The initial speed of the automobile is 49.84km/hr

<u>Explanation:</u>

Given:

Acceleration, a = 1.77 m/s²

Time, t = 6s

Final speed, v = 88 km/h

                     v = 88 X 0.278 m/s

                     v = 24.464 m/s

Initial speed, u = ?

We know,

v = u + at

On substituting the value in the formula we get:

24.464 = u + (1.77 X 6)

24.464 = u + 10.62

u = 24.464 - 10.62 m/s

u = 13.844 m/s

Converting u = 13.844 m/s to km/hr

1 m/s = 3.6 km/hr

13.844 m/s = 13.844 X 3.6 km/hr

u = 49.84 km/hr

Therefore, the initial speed of the automobile is 49.84km/hr

4 0
4 years ago
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