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uysha [10]
3 years ago
15

Only the object having density less than water float, why?​

Physics
2 answers:
jeyben [28]3 years ago
3 0

Answer:

The way that objects float is that at any depth in a fluid there is an upward force due to the effect of gravity on the fluid. ... If the density is less than that of the fluid, the object will float upward due to the buoyancy from the fluid.

bearhunter [10]3 years ago
3 0

Answer:

The way that objects float is that at any depth in a fluid there is an upward force due to the effect of gravity on the fluid. ... If the density is less than that of the fluid, the object will float upward due to the buoyancy from the fluid.

Explanation:

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Which of the following molecules is correctly paired with its macromolecule class? (2 points)
Mazyrski [523]

Answer:

adjust chosen Karl Karl jam halted Bernie

4 0
2 years ago
A 150 N boy rides a 60 N bicycle a total of 200 m at a constant speed. The frictional force against the forward motion of the bi
soldier1979 [14.2K]

Answer:

W = 7000 J

Explanation:

To solve this problem we use that the speed of the bicycle is constant, therefore its acceleration is zero

            F -fr = 0

            F = fr

where F is the force applied by the child

Work is defined by

           W = F. x

           W = F x cos θ

in this case the child's force is parallel to the movement, therefore the angle is zero and cos 0 = 1

           

let's calculate

           W = 35 200

           W = 7000 J

8 0
2 years ago
Define power and discuss how to determine it.
serious [3.7K]

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4 0
2 years ago
A two-track mind means that:
alex41 [277]

Answer:

D. your brain is processing things on the conscious and unconscious

levels​.

Explanation:

Consciousness is the awareness of ourselves and our environment.The two-track mind means that perception, memory, thinking, language, and attitude all operate on two levels conscious and unconscious level.

Glad to help!!

3 0
3 years ago
Assume the radius of an atom, which can be represented as a hard sphere, is r = 1.95 Å. The atom is placed in a (a) simple cubic
Nuetrik [128]

Answer:

(a) A = 3.90 \AA

(b) A = 4.50 \AA

(c) A = 5.51 \AA

(d) A = 9.02 \AA

Solution:

As per the question:

Radius of atom, r = 1.95 \AA = 1.95\times 10^{- 10} m

Now,

(a) For a simple cubic lattice, lattice constant A:

A = 2r

A = 2\times 1.95 = 3.90 \AA

(b) For body centered cubic lattice:

A = \frac{4}{\sqrt{3}}r

A = \frac{4}{\sqrt{3}}\times 1.95 = 4.50 \AA

(c) For face centered cubic lattice:

A = 2{\sqrt{2}}r

A = 2{\sqrt{2}}\times 1.95 = 5.51 \AA

(d) For diamond lattice:

A = 2\times \frac{4}{\sqrt{3}}r

A = 2\times \frac{4}{\sqrt{3}}\times 1.95 = 9.02 \AA

6 0
2 years ago
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