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Feliz [49]
2 years ago
5

A projectile is to be launched at an angle of 30° so that it falls beyond the pond of length 20 meters as shown in the figure.

Physics
1 answer:
marin [14]2 years ago
4 0

Answer: A

Explanation:

I want my points so yea

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Answer:True

Explanation:

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It is widely used in vehicles to improve the safety measures and reduce road accidents.

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2 years ago
Can someone help me due at 1:00 PM plus 100 points <br><br>questions B,C,D
vagabundo [1.1K]
<h3>b. ML </h3><h3>c. M</h3><h3>d. Kg</h3>

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6 0
2 years ago
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STALIN [3.7K]

Answer:

put these numbers in the boxes from up to down. hope this helps! :)

Explanation:

7

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3

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5 0
2 years ago
A certain first-order reaction is 58% complete in 95 s. What are the values of the rate constant and the half-life for this proc
guajiro [1.7K]

Answer:

0.005734 s^{-1} and 20.86 seconds are the values of the rate constant and the half-life for this process respectively..

Explanation:

Expression for rate law for first order kinetics is given by:

a_o=a\times e^{-kt}

where,

k = rate constant  

t = age of sample

a_o = let initial amount of the reactant  

a = amount left after decay process  

We have :

a_o=x

a=58\%\times x=0.58x

t = 95 s

0.58x=x\times e^{-k\times 95 s}

\k= 0.005734 s^{-1}

Half life is given by for first order kinetics::

t_{1/2}=\frac{0.693}{k}

=\frac{0.693}{0.005734 s^{-1}}=120.86 s

0.005734 s^{-1} and 20.86 seconds are the values of the rate constant and the half-life for this process respectively..

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3 years ago
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