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3 years ago

I NEED THIS QUICKLY

Physics

2 answers:

Zina [86]3 years ago

8 0

Answer:

Explanation:

SInce It is peaking at the top that's where energy is stored

il63 [147K]3 years ago

6 0

Answer: C

Explanation: Since it is half way through its fall, both would be equal. Just took the quiz and got it right :)

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An AP Physics student is attempting an FRQ problem. They arrive at the following expression for the total distance an object has

zysi [14]

The student's answer is wrong because the unit of his answer is meter - seconds which is not unit of distance (meter).

<h3>Total distance traveled by an object</h3>

The total distance traveled by an object projected upward is calculated from third equation of motion a shown below.

<h3>Equation for the motion of the object</h3>

v² = u² - 2gh

where;

v is final velocity
u is initial velocity
g is acceleration due to gravity

at maximum height, the final velocity is zero, v = 0

0 = u² - 2gh

2gh = u²

h = u²/2g

The equation for the total distance an object has traveled during upward projection is "h = u²/2g".

<h3>Dimension of the student's answer;</h3>

d = (2vh)/g = (m/s x m) / (m/s²) = (m²/s) / (m/s²) = m.s

Thus, the student's answer is wrong because the unit of his answer is meter - seconds which is not unit of distance (meter).

Learn more about distance here: brainly.com/question/2854969

#SPJ1

7 0

2 years ago

Can someone help meeeeee... show how to solve it plzzzzzzzz

liubo4ka [24]

<h2>Right answer: 64 units</h2><h2></h2>

According to the law of universal gravitation, which is a classical physical law that describes the gravitational interaction between different bodies with mass:

$F=G\frac{m_{1}m_{2}}{r^2}$

Where:

$F$ is the module of the force exerted between both bodies

$G$ is the universal gravitation constant.

$m_{1}$ and $m_{2}$ are the masses of both bodies.

$r$ is the distance between both bodies

In this case we have a gravitation force $F_{1}=16units$ , given by the formula written at the beginning. Let’s rename the distance $r$ as $d$ :

$F_{1}=G\frac{m_{1}m_{2}}{d^2}$ (1)

And we are asked to find the gravitation force $F_{2}$ with a given distance of $\frac{d}{2}$ :

$F_{2}=G\frac{m_{1}m_{2}}{({\frac{d}{2})}^{2}}$

$F_{2}=G\frac{m_{1}m_{2}}{{\frac{d^{2}}{4}}}$ (2)

The gravity constant is the same for both equations, and we are assuming both masses are constants, as well. So, let’s isolate $G m_{1}m_{2}$ in both equations:

From (1):

$Gm_{1}m_{2}=F_{1}{d}^{2}$ (3)

From (2):

$Gm_{1}m_{2}=F_{2}\frac{{d}^{2}}{4}$ (4)

If (3)=(4):

$F_{1}{d}^{2}=F_{2}\frac{{d}^{2}}{4}$ (5)

Now we have to find $F_{2}$ :

$F_{2}=F_{1}{d}^{2}\frac{4}{{d}^{2}}$

$F_{2}=4F_{1}$ (6)

If $F_{1}=16 units$ :

$F_{2}=(4)(16 units)$

$F_{2}=64 units$ >>>>This is the new force of attraction

3 0

3 years ago

Calculate the speed of an object that travels 75m in 15s

vodka [1.7K]

Answer:

speed =distance/time taken

5 m/s

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3 years ago

Why waves are curved in shape ?

vagabundo [1.1K]

Answer:

The waves are refracted as they travel through the Earth due to a change in density of the medium. This causes the waves to travel in curved paths. When the waves cross the boundary between two different layers, there is a sudden change in direction due to refraction

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3 years ago

Write down the role played by four digestive juices in digestion and the

valentinak56 [21]

Answer:

Digestive juices secreted by various organs such as salivary glands in the mouth, stomach, liver and pancreas help in the process of digestion of food. Saliva secreted by the salivary glands in the mouth aids in the breakdown of starch present in the food to simple sugar

Explanation:

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3 years ago