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torisob [31]
3 years ago
12

Describe the forces involved in Throwing a spear

Physics
1 answer:
Alexeev081 [22]3 years ago
8 0

Explanation:

The center of gravity is near the grip and does not change during throw. "Throwing through the tip," a popular term of how to throw a javelin, means throwing through the grip or center of gravity. The center of pressure is the aerodynamic force of drag and lift on the javelin.

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. Assume you have a dot grid with 36 dots per sq.in. How many acres are represented by each dot using the following map scales:
elixir [45]

Answer:

a) 0.069 acres

b) 0.114acres

c) 17.78acres

Explanation:

1 dot=1/36sqin

a) 1 sqin= 330×330=108900ft^2

1 dot=108900/36 =3025ft^2

Converting to acre,divide by43560

3025/43560 =0.069acre

b) 1 chain =22 yards

25×22=550yards

Converting to acre divide by 4840

550/4840 =0.114acre

c)1 sqmile =640acres

(1/36) ÷ 640

640/36

17.78acres

4 0
3 years ago
Which would most likely cause specular reflection? O a pathway with rough rocks a shiny, smooth leaf a small patch of soil a rou
andrew11 [14]

Answer:

a shiny smooth leaf

Explanation:

A shiny smooth leaf will cause specular reflection. Other choices will cause diffused reflection from the surface.

A specular reflection is similar to how a mirror or smooth surface reflects. The incident light is given off as a single ordered reflection from the surface of a body.

For this to occur, the surface incident must be smooth and without rough patterns on it.

A path way with rough rocks, small patch of soil and rough logs will give off diffused reflection

8 0
3 years ago
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In a Millikan oil-drop experiment, the condenser plates are spaced 2.00 cm apart, the potential across the plates is 4000 V, the
astraxan [27]

Answer:

Answer is in the following attachment

                                                                         

Explanation:

3 0
3 years ago
The __________ lobe contains the area of the cortex involved in auditory processing called the primary __________ cortex. A. par
Vlada [557]
<span>The temporal lobe contains the area of the cortex involved in auditory processing called the primary auditory cortex.</span><span> 

The temporal </span>lobe<span> is associated with </span>auditory processing<span> and olfaction.
</span>The primary auditory cortex<span> is the </span>part<span> of the temporal </span>lobe which<span> processes </span>auditory <span>information.</span>
8 0
3 years ago
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Which undergoes a faster rate of cooling: a red-hot poker in a warm oven or a red-hot poker in a cold room? (or do both cool at
NARA [144]
A red hot poker in a cold room would cool faster
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3 years ago
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