Answer:
The pumpkin's range is nine times as far.
Explanation:
Given,
In the first case,
Let a pumpkin is thrown with initial velocity u with an angel theta above the horizontal axis.
Therefore the range of the pumpkin is,
Now in the second case
Initial velocity of the pumpkin is three times the first case,
Let R' be the new range of the pumpkin.
New range of the pumpkin is,
From eqn (1) and (2), we get,
Hence the pumpkin's range is nine times of the initial case.
Answer:
thermal mass is the ability of a material to absorb, store and release heat... Materials such as concrete, bricks, and tiles absorb and store heat, And then they have Thermal mass.
Explanation:
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Answer:
he started at his house and then left his house
Explanation:
Answer:
Explanation:
We will use the equation F - f = ma, which is just a fancy way of stating Newton's 2nd Law. For us:
F = 5.20 to the right (+)
f = 3.29 to the left (-)
m = 1.05 kg. Therefore,
5.20 - 3.29 = 1.05a and
1.91 = 1.05a so
a = 1.82 m/s/s to the right
If the echo (the reflected sound) reaches your ear less than about
0.1 second after the original sound, your brain doesn't separate them,
and you're not aware of the echo even though it's there.
If the echo comes from, say, a wall, 0.1 second means you'd have to be
about 17 meters away from the wall. If you're closer than that, then the
echo reaches you in less than 0.1 second and you're not aware of it.
A. 30 meters . . .
No. You hear that echo easily
B. you're standing within range of both sounds . . .
No. You hear that echo easily, if you're at least 17 meters from the wall.
C. less than 0.1 second later . . .
That's it. The echo is there but your brain doesn't know it.
D. 21.5 meters
No. You hear that echo easily.
