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kkurt [141]
3 years ago
12

A wheel has a constant angular acceleration of 1.9 rad/s2. During a certain 7.0 s interval, it turns through an angle of 63 rad.

Assuming that the wheel started from rest, how long had it been in motion before the start of the 7.0 s interval?
Physics
1 answer:
Anarel [89]3 years ago
3 0

Answer:

4.5s

Explanation:

That must be the right answer.

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Wil-E-Coyote drops a bowling ball off a cliff to try to catch the Roadrunner. The cliff is 132m high. how far does it fall in th
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197m because 132+3.0=197x
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Douglas has a segment with endpoints I(5, 2) and J(9, 10) that is divided by a point K such that IK and KJ form a 2:3 ratio. He
Rufina [12.5K]
For the answer to the question above, 
 the distance from i to j is 5 parts 
(2 parts from i to k and 3 parts from k to j) 

The y distance from i to j is 
10 - 2 = 8 

Each part is 8/5 = 1.6 
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From the y coordinate of I which is 2 plus the 3.2 to point k 
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Now just convert that to fraction and that will be the answer
3 0
2 years ago
A person travels by car from one city to another with different constant speeds between pair of cities. She drives for 36 min at
Softa [21]

 Change minutes to hrs, divide by 60:
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----------------
total + 1.45 hrs, total travel time
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let a = average speed for the trip
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Write a dist equation, dist = speed * time
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80(.5) + 100(.20) + 40(.75) = 1.45a
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90 = 1.45a
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90 km is the total distance 

3 0
3 years ago
A line of dominos is knocked down. Which explanation is true?
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B: an increase in acceleration caused an increase in force.

This is based on the concept of force on an object.

Now, formula for force is commonly known as;

Force = mass × acceleration

Now, mass and acceleration are the input values that make the output which is the Force to either increase or decrease.

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Now, this output which is the force became so much as a result of the increase in acceleration of the motion that triggered its movement.

Moreover, the force is directly proportional to the acceleration!

Thus, we can say that an increase in acceleration caused an increase in force.

Read more at; brainly.in/question/25954363

4 0
3 years ago
Read 2 more answers
The figure shows a 1 cm cube that has a mass of 1 gram. Calculate the density of the cube in kg/m³.
dolphi86 [110]
Density = 1 g/cm^3 = 1000 Kg/m^3
3 0
3 years ago
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