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Daniel [21]
3 years ago
8

A rock is thrown upward at a speed of 69 mph when the rock reaches its peak how fast is it going and what is the magnitude and a

cceleration
Mathematics
1 answer:
aleksandrvk [35]3 years ago
6 0
At it's peak the rock is going 0mph the acceleration is .0000038 m/s^2 if on earth
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sp2606 [1]
The length of an arc is given by θ/360×2πr, where θ is angle subtended by the arc to the center and r is the radius of the circle.
 The length is 12 units, and θ/360 is 1/3
Therefore, 12 = 1/3 × 3.142 ×r
                    r = 12× 3/3.142
                    r = 11.457 units
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5 0
3 years ago
Suppose an amount increases by 100%, then decreases by 100%. Find the final amount. Would the situation change if the original i
Anarel [89]
Well to solve this, lets plug in some numbers. Lets assume that for now, the starting number is 2. If it increases by 100%, bringing it up to 4, then decreases 100%, it is brought down to zero. Now one thing to note is that any number decrease by 100% is automatically zero. Watch, we start with two, it is then increased by 150%, bringing it up to 5, then decreased by 100%, bringing it back down to zero. In conclusion, 100% cannot be specified as a value, but rather a relation. 100% represents the entire number, meaning that if you are decreasing a number by 100%, you are basically subtracting the number by itself!
6 0
3 years ago
1 hour is equal to how many seconds
AURORKA [14]

Answer: 3600 seconds

Step-by-step explanation:

60 seconds in a minute

60 minutes in an hour

(60)(60) = 3600

4 0
3 years ago
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The solutions to the equation 2x2+x-1=2 are X= -3/2 or x=
Brilliant_brown [7]

Answer:

positive 3/2

Step-by-step explanation:

3 0
3 years ago
A family has two cars. The first car has a fuel efficiency of 15 miles per gallon of gas and the second has a fuel efficiency of
vodka [1.7K]

Answer:

the 35 mile one spent 20 gallons of gas and the 15 miles one spent 25 gallons

Step-by-step explanation:

7 0
3 years ago
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