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zheka24 [161]
3 years ago
5

PLSSSS HELPPPP PLSSSS 25 POINTS PLS I REALLY NEED THIS AND GET THEM RIGHT SO PLS DONT ANSWER IF U DONT KNOW

Physics
2 answers:
denis23 [38]3 years ago
4 0

Answer:

1- C   2-B    3-B   - these are ur best answers

Explanation:

cupoosta [38]3 years ago
3 0

Answer:

1. C(bone structure)

2. B (Common ancestor)

3.D (DNA)

Explanation:

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Which tools would Sara use to find and irregularly shaped objects mass in volume?
pogonyaev
To find the mass and volume of irregularly shaped object. One can use the balance to find the weight, and to find the volume of the object water should be poured in the beaker and note the level of water.
8 0
3 years ago
A cylindrical bucket, open at the top, is 28.0 cm high and 11.0 cm in diameter. A circular hole with a cross-sectional area 1.55
svlad2 [7]

Answer:

so height is 0.1283 m

Explanation:

given data

height = 28 cm

diameter = 11 cm

cross-sectional area = 1.55 cm2

water flow rate  =  2.46×10^−4 m3/s

to find out

How high will the water in the bucket rise

solution

we know that here

potential energy = kinetic energy

mgh = 1/2 mv²

multiply both sides by the 2 and we get

2mgh=mv²

solve it we get

√(2gh) = v    ....................1

h = v²/2g   ...............2

and

flow rate = A V

2.46×10^−4 = V 1.55×10^−4

V = 1.5870 m/s

so from 2

h = v²/2g

h = 1.5870²/ 2(9.81)

h = 0.1283 m

so height is 0.1283 m

6 0
4 years ago
Friction between solids can be most accurately defined as the force that opposes the sliding motion of two _____that are touchin
OlgaM077 [116]

Answer:

surfaces

Explanation:

3 0
3 years ago
1. You and your forensics team are working a crime scene of a 19 year-old female who was found in the woods behind
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3 years ago
Which of the following is an expression of Newton's second law? A. The acceleration of an object is determined by its mass and t
Sav [38]

Answer: A. The acceleration of an object is determined by its mass and the net force acting on it.

Explanation:

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It should be noted that the acceleration of the object directly depend on the net force while it depends inversely on the mass. Therefore, when the force that's acting on such object is increased, then the acceleration will increase as well. On the other hand, when there is an increase in mass, there'll be a reduction in the acceleration.

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3 years ago
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