All categories

4 years ago

Helpppppppppp!!!!!!!!!!...

Physics

2 answers:

OverLord2011 [107]4 years ago

8 0

Answer:

i can't see the picture pls can you send a link or no

Explanation:

jok3333 [9.3K]4 years ago

5 0

Explanation:

Hey there!

Height(h)= 1.8m

Mass(m)= 14kg

Potential energy= m.h.g

Where "m" means mass, "h" means vertical height and "g" means gravity.

Now, put all values.

P.e = 14kg * 1.8m * 10m/s^2

= 252kg.m^2/s^2

Therefore, The potential energy was 252kg.m^2/s^2.

Hope it helps...

You might be interested in

What happens when a wave reflects?

solong [7]

They bounce off just like sun rays when they heat the atmosphere they bounce off reflection

4 0

4 years ago

If the ball leaves the projectile launcher at a speed of 2.2 m/s at an angle of 30ᴼ, and the projectile launcher is on a table a

IgorC [24]

Answer: 1.12 m

Explanation:

This situation is related to parabolic motion, hence we can use the following equations:

$y=y_{o}+V_{o}sin \theta t-\frac{g}{2}t^{2}$ (1)

$x=V_{o} cos \theta t$ (2)

Where:

$y=0 m$ is the ball final height (when it hits the ground)

$y_{o}=1.1 m$ is the ball initial height

$V_{o}=2.2 m/s$ is the initial velocity

$\theta=30\°$ is the angle at which the ball was launched

$t$ is the time

$g=9.8 m/s^{2}$ is the acceleration due gravity

$x$ is the horizontal distance the ball travels

Rewriting (1) with the given values:

$0 m=1.1 m+(2.2 m/s)(cos 30\°)t-\frac{9.8 m/s^{2}}{2}t^{2}$ (3)

Multiplying all the eqquation by -1 and rearranging:

$4.9 m/s^{2} t^{2}-1.1 m/s t-1.1 m=0$ (4)

So, since we have a quadratic equation here (in the form of $0=at^{2}+bt+c$ , we will use the quadratic formula to find $t$ :

$t=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}$ (5)

Where $a=4.9$ , $b=-1.1$ , $c=-1.1$

Substituting the known values and choosing the positive result of the equation, we have:

$t=\frac{-(-1.1)\pm\sqrt{(-1.1)^{2}-4(4.9)(-1.1)}}{2(4.9)}$

$t=0.59 s$ (6)

Now, substituting (6) in (2):

$x=(2.2 m/s)(cos 30\°)(0.59 s)$ (7)

$x=1.12 m$ (8) This is the horizontal distance at which the ball hits the ground.

3 0

4 years ago

ΡΟ. . When preparing for any of the golf variation games (golf foot golf, disc golf), a person should consider the following bef

attashe74 [19]

Answer:

All of the above

Explanation:

To ensure the ball go to where we expected it go

5 0

3 years ago

What kinds of bonds are possible between carbon and oxygen?

ikadub [295]

covalent bond I think

5 0

4 years ago

What causes competition among organisms?

irga5000 [103]

Answer:

Whats up Bmw,

The organisms is caused when both the organisms or species are harmed, which is limited supply of at least one resource from food or even water used by both can be a factor.

Explanation:

Hope I helped you, and let me know if you need help on anything else :p

8 0

4 years ago

Read 2 more answers

Helpppppppppp!!!!!!!!!!...​

Helpppppppppp!!!!!!!!!!...