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3 years ago

A person could jump futher on _ than on __

Physics

2 answers:

alexgriva [62]3 years ago

6 0

A person could jump farther on Mars than on Venus, mainly
because Mars has much less mass than Venus has.

Scrat [10]3 years ago

3 0

The moon the earth because of gravity forces are differant

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Which statement BEST describes how the body moves?

Alex73 [517]

<h3><u>Answer;</u></h3>

A. Skeletal muscles, which are made of fibers, nerves, and blood vessels, contract in order to make the body move.

<h3><u>Explanation</u>;</h3>

<em><u>Muscular tissues functions in movement and locomotion through its direct connection with the skeletal system. </u></em>
<em><u>Skeletal muscles are responsible for moving the body. The skeletal muscle contractions pull on tendons, which as attached to bones. When the skeletal muscle contraction causes the muscle to shorten, the bone and thus the body par will move. </u></em>
<em><u>Skeletal muscles also provide structural support for the entire body. </u></em>

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3 years ago

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PLZ HELP WILL GIVE BRAINLIEST!!!<br><br>Click on the diagram that shows a first-class lever.

Schach [20]

the correct one is not on here but if there is no more choices then it is the first one

3 0

3 years ago

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A target in a shooting gallery consists of a vertical square wooden board, 0.250 m on a side and with mass 0.750 kg, that pivots

Alenkasestr [34]

Here in this case since there is no torque about the hinge axis for the system of bullet and block then we can say that angular momentum of this system will remain conserved

$L_i = L_f$

$mv \frac{L}{2} = (I_1 + I_2)\omega$

here we will have

L = 0.250 m

v = 385 m/s

m = 1.90 gram

now moment of inertia of the plate will be

$I_1 = \frac{ML^2}{3}$

$I_1 = \frac{0.750 (0.250)^2}{3} = 0.0156 kg m^2$

$I_2 = m(\frac{L}{2})^2 = 0.0019(0.125)^2 = 2.97 \times 10^{-5} kg m^2$

now from above equation

$0.0019 (385)(0.125) = (0.0156 + 2.97 \times 10^{-5})\omega$

$\omega = 5.85 rad/s$

8 0

3 years ago

Rocky bodies that orbit the sun but are not too small to be considered planets are known as :

Licemer1 [7]

D.) Asteroids

Asteroids are large rocks that orbit the sun. They aren't considered planets since they are smaller.

5 0

3 years ago

A ball is thrown straight up into the air with an initial velocity of 50 ft/sec. The height h(t) of the ball after t seconds is

Scrat [10]

Answer:

The average velocity for the time period beginning when t=1 and lasting 0.1 seconds = 16.40 ft/s.

Explanation:

Given that the height of the ball at time t is

$\rm h(t) = (50 t-16t^2)\ ft.$

The average velocity of an object is defined as the total displacement covered by the particle divided by the total time taken in covering that displacement.

If $\rm h_1,\ h_2$ are the heights of the ball at time $\rm t_1$ and $\rm t_2$ , then the total displacement covered by the ball from time $\rm t_2$ to $\rm t_1$ is $\rm h_2-h_1$ .

Thus, the average velocity of the ball for the time interval $\rm t_2-t_1$ is given by

$\rm v_{av}=\dfrac{h_2-h_1}{t_2-t_1}.$

For the time interval, beginning when t = 1 second and lasting 0.1 seconds,

$\rm t_1=1\ sec.\\t_2 = 1\sec + 0.1\ sec = 1.1\ sec.\\\\h_1=50\times 1-16\times 1^2=34\ ft.\\h_2=50\times 1.1-16\times 1.1^2=35.64\\\\Therefore,\\\\v_{av} = \dfrac{35.64-34}{1.1-1}=16.40\ ft/s.$

7 0

3 years ago

A person could jump futher on ___ than on ____

A person could jump futher on _ than on __