Answer:
a. 4.5secs
Explanation:
From the question, the equation describing the height is given by
at the point when the rock hit the ground, the height,h will be zero.
Hence we can have
hence the rock will hit the ground in 4.5secs
se the model for projectile motion, assuming there is no air resistance and g = 32 feet per second per second. A baseball, hit 3
1 answer:
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One square meter equals 10.7 feet.
Answer:
The gas pressure is: 1.55 atm.
Explanation:
We need to use the equation that relate the variables given at the exercise (pressure, temperature and volume) from the ideal gas law formula, when the mass is constant we can reduce the expretion to
solving to P2 we get:
replace the values
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