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BabaBlast [244]
3 years ago
10

Several objects were dropped from a balcony. Using the data below, determine which statements must be true regarding the rate of

force of each falling object. Neglect (ignore) air resistance. Object Mass Diameter Height of drop Tennis Ball 0.06 kg 6.6 cm 5 m Baseball 0.15 kg 74 cm 5 m Bowling Ball 5 kg 21 cm 5 m Golf Ball 0.04 kg 4.3 cm 5 m Statement 1: All balls hit the ground at the same time Statement 2: All balls hit the ground with different forces Statement 3: The bowling ball hit the ground first and the tennis and golf ball hit the ground last Statement 4: It is not possible to tell how much force each ball hit the ground with
Physics
1 answer:
NeX [460]3 years ago
6 0

Answer:

statement three and statement 2

Explanation

since they are weighted different, they will have more or less force (more mass=more force), also the heavier an object, the greater its acceleration while falling.

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She was actually removing energy
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3 years ago
What types of rock make up the oceanic crust and how do they form?
Butoxors [25]
Oceania crust is typically made up of igneous rocks such as basalt. Igneous rocks are formed when lava flows from volcanoes cool and harden.
8 0
4 years ago
Aluminum rivets used in airplane construction are made slightly larger than the rivet holes and cooled by "dry ice" (solid CO2)
poizon [28]

Answer:

\rm 4.554\ m m.

Explanation:

<u>Given:</u>

  • Initial temperature, \rm T_i=23.0\ ^\circ C=23 + 273.15 = 296.15\ K.
  • Final temperature, \rm T_f = -78.0\ ^\circ C = -78+273.15=195.15\ K.
  • Diameter of the hole, \rm d = 4.500\ m = 4.500\times 10^{-3}\ m.
  • Expansion coefficient of the Aluminum, \rm \alpha = 2.4\times 10^{-5}\ K^{-1}.

Let the diameter of the rivet at \rm T_i=23.0\ ^\circ C be \rm d_o, such that,

\rm d_o=d+\Delta d

\rm \Delta d is the elongation in the diameter of the rivet.

We know, The change in the diameter of the rivet is related with the change in temperature as:

\rm \dfrac{\Delta d}{d_o}=\alpha \Delta T.

where, \rm \Delta T is the change in temperature = \rm T_f-T_i=-195.15-296.15=-491.30\ K.

Also, \rm \Delta d=d_o-d.

Using these values,

\rm \dfrac{d_o-d}{d_o}=\alpha \Delta T\\1-\dfrac{d}{d_o}=\alpha \Delta T\\\dfrac{d}{d_o}=1+\alpha \Delta T\\\Rightarrow d_o = \dfrac{d}{1+\alpha \Delta T}\\=\dfrac{4.500\times 10^{-3}}{1+2.4\times10^{-5}\times (-491.30)}\\=4.554\times 10^{-3}\ m.\\=4.554\ m m.

It is the required diameter of the rivet at -78.0\ ^\circ C.

4 0
3 years ago
Which organ allows the exchange of oxygen and carbon dioxide?​
jok3333 [9.3K]

Answer:

Respiratory System

3 0
3 years ago
Read 2 more answers
Points A, B, and C lie along a line from left to right, respectively. Point B is at a lower electric potential than point A. Poi
djyliett [7]

Answer:

A) The particle will accelerate in the direction of point C.

Explanation:

As we know that

potential at points A, B,C and D as V_A, V_B, V_C, V_D  and it is clear from the question that

V_A>V_B>V_C

And we know that flow is always from higher to lower potential (for positive charge due to positive potential energy).

So the charge will accelerate from B toward C.

Hence, the correct option is A.

6 0
4 years ago
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