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Lady_Fox [76]
3 years ago
12

A cat chases a mouse until the cat gets tired. A graph of the cat's velocity over time is shown below. Velocity 8+ 6+ 9+ 2 Time

is) 2 3 What is the cat's average acceleration from 12 to 24 seconds? Answer using two digrii cont ligures​
Physics
2 answers:
iragen [17]3 years ago
8 0

Answer:

-0.67

Explanation:

khan academy

(final velocity minus initial velocity) divided by time

defon3 years ago
6 0

Answer:

-0.67

Explanation:

khan academy

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Three cars (car F, car G, and car H) are moving with the same velocity when the driver suddenly slams on the brakes, locking the
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Answer:

a) Option D

b) Option A

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a) Option D

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b) Option A, Car F

Being most massive car, the frictional force required to stop the car will be highest.  

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6 0
3 years ago
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What is the maximum speed when the conditions are mass =450 kg, initial height= 30 m, and the roller coaster is initially at res
Zarrin [17]

Answer:

B. 24.2 m/s

Explanation:

Given;

mass of the roller coaster, m = 450 kg

height of the roller coaster, h = 30 m

The maximum potential energy of the roller coaster  due to its height is given by;

P.E_{max} = mgh\\\\PE_{max} = 450 *9.8*30\\\\PE_{max} = 132,300 \ J

P.E_{max} = K.E_{max} \ (law \ of \ conservation\ of \ energy)

K.E_{max} = \frac{1}{2}mv_{max}^2\\\\ v_{max}^2 = \frac{2K.E_{max}}{m}\\\\ v_{max}^2 = \frac{2*132300}{450}\\\\ v_{max}^2 =588\\\\v_{max} = \sqrt{588}\\\\  v_{max} = 24.2 \ m/s

Therefore, the maximum speed of the roller coaster is 24.2 m/s.

3 0
3 years ago
Identify characteristics of energy from the Sun. Check all that apply.
xxMikexx [17]

Answer:

First one, third one, and fourth one

6 0
3 years ago
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A ball is thrown vertically up from the edge of a cliff with a speed of 8 m/s, how high is
anygoal [31]

Explanation:

s=d/t

d=s×t

d=8×16.4

d=131.2

distance is 131.2m.

7 0
3 years ago
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