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poizon [28]
3 years ago
14

Pairs of electrons are shared in a______

Physics
1 answer:
avanturin [10]3 years ago
6 0

Answer: two atoms

Explanation:

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1) What proportion of U.S. energy today comes from renewable sources? What is the most prevalent form of renewable energy used i
Rudik [331]

Answer:

Eighteen percent

Explanation:

Eighteen percent of all electricity in the US is sourced from renewable energy ,which includes solar , wind, and hydroelectric dam.

Hydroelectric power is currently the largest producer of renewable electricity in the US, generating around 6.5% of the nation's total electricity  as well as 45.71% of the total renewable electricity generation.The United States is the fourth largest producer of hydroelectricity in the world after China, Canada and Brazil.

8 0
3 years ago
A handbag weighing 162 N is carried by two students each holding the handle of the bag
Scrat [10]

Answer:

162 N

Explanation:

Since the handbag weighs 162 N, from Newton's third law of motion, we know that to every action, there is an equal and opposite reaction. Thus, it means the force by each student arms Carrying the bag will be 162 N.

Since both handles of the bag are at same inclined angle of 60°, then the force in each students arm will be equal and thus;

F_each arm = 162 N

7 0
3 years ago
A scooter is moving with a speed of 18 m/s. Its mass is 20 kg. What is the
kykrilka [37]
<h2><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u>:-</h2>

A scooter is moving with a speed of 18 m/s. Its mass is 20 kg. What is the magnitude of its momentum?

A. 360 kg.m/s

B. 2 kg.m/s

C. 3600 kg.m/s

D. 1.1 kg.m/s

<h2><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u>:-</h2>

<h3>Given:-</h3>

Speed (v) of a scooter = 18 m/s

Mass (m) = 20 kg

<h3>To Find:-</h3>

Magnitude of its momentum (p) = ?

<h3>Answer:-</h3>

Since, we know that,

p = mv

So,

p = 20 kg × 18 m/s

p = 360 kg.m/s

<h3>\therefore The correct option is (A) 360 kg.m/s </h3>

<h3>The magnitude of its momentum is <u>3</u><u>6</u><u>0</u><u> </u><u>k</u><u>g</u><u>.</u><u>m</u><u>/</u><u>s</u>. [Answer]</h3>
4 0
3 years ago
You attach a cart with a mass of 0.92 kg to a spring and compress the cart-
Artyom0805 [142]

Answer:

F = - K X     force exerted by compressed spring

F X = 1/2 M V^2    energy (work) required to produce a speed V for mass M

K X * X  = 1/2 M V^2      direction of F is the same as that of V

X^2 = M V^2 / K      combining  terms

X = (M / K)^1/2 V      

X = (.92 / 130)^1/2 * 1.4 = .118 m

8 0
3 years ago
A thin glass rod is submerged in oil. What is the critical angle for light traveling inside the rod?
IRISSAK [1]

If a thin glass rod is submerged in oil, the critical angle for light traveling inside the rod is 76.74°.

If light refracted from a denser medium of refractive index n_{1} to a rarer medium of refractive index n_{2},

the critical angle is given by \theta_{c} =\sin^{-1}(\frac{n_{2} }{n_{1} })

The refractive index of the glass is = 1.50

and refractive index of the oil is = 1.46

Thus glass is denser than oil, hence

n_{1} =1.50\\n_{2}=1.46

∴ The critical angle \theta_{c} =\sin^{-1}\frac{1.46}{1.50} =76.74 degree

The critical angle for light traveling inside the rod is 76.74°.

Learn more about critical angle on

https://brainly.in/question/4977201

#SPJ4

4 0
2 years ago
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