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liberstina [14]
3 years ago
14

A 8.0-g bullet with an initial velocity of 115.0 m/s lodges in a block of wood and comes to rest at a

Physics
1 answer:
Gnesinka [82]3 years ago
3 0
A. When your fire a bullet into the air, it typically takes between 20 and 90 second for it to come down,depending on the angle it was fired at,its muzzle velocity and caliber.
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Which feature forms most of the ocean floor. describe it in detail
worty [1.4K]
Where plates are pulled away (diverge) from each other molten magma flows upward between the plates forming mid-ocean<span> ridges, underwater volcanoes, hydrothermal vents, and new </span>ocean floor<span> crust. The Mid-Atlantic Ridge, is an example of this type of plate boundary.</span>
3 0
3 years ago
What are common features of both the MMPI-2 and CPI? Select all that apply.
Amiraneli [1.4K]

Answer:     D

Both MMPI-2 and CPI check for serious personality disorders.

MMPI - 2

MMPI - 2 stands for Minnesota Multiphasic Personality Inventory -2. It is the most widely used psychometric test to measure adult psychopathology. MMPI-2 differentiates people with hypochondriasis from normal one. MMPI-2 is able to detect unconsciously somatizing or consciously malingering in patients.

CPI

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8 0
3 years ago
A box has a length of 18.1 cm and a width of 19.2cm tall ?
ladessa [460]
Volume = l*w*h = (18.1 cm)(19.2 cm)(20.3 cm) = 7,054 cm^3.
3 0
3 years ago
Determine the angle of twist of the bar. the bar ia subjected to a torque of t= 571 lb-ft and is of a material of g = 18,431, 35
daser333 [38]

Answer:

angle of twist of the bar is 3.32 × 10^{-5} degree

Explanation:

given data

torque t = 571 lb-ft = 774.172 Nm

g = 18,431, 356 lb/ in² = 1.27 × 10^{11} Pa

d1 = 8.1 in = 0.205 m

d2 = 1.8 in = 0.045 m

L = 3.1 ft = 0.944 m

to find out

angle of twist of the bar

solution

first we get here polar moment that is express as

polar moment = \frac{\pi (do^4 - d1^4}{32}     ...........1

here do is outer diameter that is 0.205 m and d1 is inner diameter i.e 0.045 m

put here value we get

polar moment = \frac{\pi (0.205^4 - 0.045^4}{32}

polar moment = 173.006 × 10^{-6} m^{4}

now we get here angle that is

angle = \frac{TL}{IG}   ..............2

here T is torque and L is length and J is polar moment and G is share modulus

put these value in equation 2 we get

angle = \frac{774.17*0.944}{173*10^{-6}*1.27^{11}}

angle = 3.32 × 10^{-5} degree

3 0
3 years ago
Pls help with my physics hw
Verdich [7]

Answer:

1. (c) 18 J

2. 70%

Explanation:

1. Thermal energy released (waste) = input energy (it is usually more) - output (usually less_used to perform useful work)

= 60 joules - 42 joules

= 18 joules

2. % energy efficiency = output/input x 100%

= (42/60) x 100%

= 70%

<em>I hope this helps. have a nice studies</em>

8 0
3 years ago
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