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Kay [80]
3 years ago
7

Which statement is the best interpretation of the ray diagram shown below?

Physics
1 answer:
kicyunya [14]3 years ago
5 0
This correct answer would be C
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Determine the speed of a falling object 7.8 sec after it dropped.
butalik [34]

Answer:

76.4m/s

Explanation:

Given parameter:

Time taken  = 7.8sec

Unknown:

Speed after it dropped  = ?

Solution:

To solve this problem, we use one of the kinematics equation:

      V  = U + gt

V is the final speed

U is the initial speed  = 0m/s

g is the acceleration due to gravity

t is the time taken

       V  = 0 + 9.8 x 7.8  = 76.4m/s

7 0
3 years ago
Chemical name and a common name for NaOH​
garri49 [273]
Chemical Name: Sodium Hydroxide
7 0
2 years ago
Read 2 more answers
Consider a constant density gas flowing steadily over an airfoil. Far upstream the velocity is V0. Halfway along the top surface
Mashutka [201]

Answer:

The solution and complete explanation for the above question and mentioned conditions is given below in the attached document.i hope my explanation will help you in understanding this particular question.

Explanation:

5 0
3 years ago
Two forces are applied on a body. One produces a force of 480-N directly forward while the other gives a 513-N force at 32.4-deg
n200080 [17]

Answer:

F = (913.14 , 274.87 )

|F| = 953.61 direction 16.71°

Explanation:

To calculate the resultant force you take into account both x and y component of the implied forces:

\Sigma F_x=480N+513Ncos(32.4\°)=913.14N\\\\\Sigma F_y=513sin(32.4\°)=274.87N

Thus, the net force over the body is:

F=(913.14N)\hat{i}+(274.87N)\hat{j}

Next, you calculate the magnitude of the force:

F=\sqrt{(913.14N)+(274.87N)^2}=953.61N

and the direction is:

\theta=tan^{-1}(\frac{274.14N}{913.14N})=16.71\°

7 0
3 years ago
Compare wave A with wave B correctly in relation to amplitude.
olga nikolaevna [1]
We know for a fact that D and A can be eliminated from the answer choices because those are both false. we know that both B and C are both very accurate knowing that wave B does have a higher pitch than wave A but also wave A has a louder sound wave than wave B. so i'd say the answer is (C).
8 0
3 years ago
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