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musickatia [10]
3 years ago
12

Question one please! This is 8th grade science btw.

Physics
1 answer:
yKpoI14uk [10]3 years ago
8 0

Good Luck, NYAYAYAYAYa

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The function H(t) = -16t^2 + vt + s shows the height H (t), in feet, of a projectile launched vertically from s feet above the g
Reptile [31]
<span>H(t) = -16t^2 + vt + s
</span><span>Part A:
</span>Using the given data:

H(t)= -16*t² + 60*t + 82;

Part B:
Put H(t)=0
0<span>= -16*t² + 60*t + 82;</span>
Use the quadratic formula to find t.
See the attachment...'t' is replaced with 'x'.

3 0
3 years ago
Determine the maximum theoretical speed that may be achieved over a distance of 66 m by a car starting from rest, knowing that t
My name is Ann [436]

Answer:

v=32.49 m/s

Explanation:

Given that

Distance ,d= 66 m

Initial speed of the car ,u = 0 m/s

Coefficient of friction ,μ = 0.8

Lets take the total mass of the car = m

The acceleration of the car is given as

a = μ g                               ( g= 10 m/s² )

Now by putting the values in the above equation we get

a= 0.8 x 10 m/s²

a= 8 m/s²

We know that ,final speed is given as

v²= u ²+ 2 a d

Now putting the value

v²=0² + 2 x 8 x 66

v²= 1056

v=32.49 m/s

3 0
3 years ago
Which diagram is the best representation of gas molecules in a closed container? A. Diagram A B. Diagram B C. Diagram C D. Diagr
WITCHER [35]
Gas "floats" so if there are examples or pictures it would be the one with the most evenly spread out "dots". 
8 0
3 years ago
Caroline conducts research on how the amount of fiber in a student's breakfast affects their grades in school. How should she re
Evgesh-ka [11]

Answer:

data table and line graph ( first choice)

8 0
3 years ago
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How does this diagram demonstrate the law of superposition?
Mandarinka [93]

Answer:

well, as u can tell the top layer will always be the youngest layer aka the newest layer. The farther u go down the older the layers get. So the deeper u dig the farther back in time we see.

Explanation:

8 0
2 years ago
Read 2 more answers
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