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Varvara68 [4.7K]
2 years ago
14

Name an element in the same family as sodium

Physics
2 answers:
AlladinOne [14]2 years ago
7 0

Answer:

The Alkali Metals

sodium is a member of the alkali metal family with potassium (K) and lithium (Li). Sodium's big claim to fame is that it's one of two elements in your table salt. When bonded to chlorine (Cl), the two elements make sodium chloride (NaCl).

makkiz [27]2 years ago
7 0

Answer:

Explanation:

Sodium is a member of the alkali metal family, along with potassium (K) and lithium (Li). The fact that sodium is one of two elements in table salt is its main claim to fame. When bonded with chlorine (Cl), the two elements combine to form sodium chloride (NaCl).

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If the mass of a material is 50 grams and the volume of the material is 5 cm^3, what would the density of the material be?
kotykmax [81]
D = M / V

D = 50 / 5

D = 10 g/cm^3
5 0
3 years ago
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Human reaction times are worsened by alcohol. How much further (in feet) would a drunk driver's car travel before he hits the br
sweet-ann [11.9K]

Answer:

A drunk driver's car travel 49.13 ft further than a sober driver's car, before it hits the brakes

Explanation:

Distance covered by the car after application of brakes, until it stops can be found by using 3rd equation of motion:

2as = Vf² - Vi²

s = (Vf² - Vi²)/2a

where,  

Vf = Final Velocity of Car = 0 mi/h

Vi = Initial Velocity of Car = 50 mi/h

a = deceleration of car  

s = distance covered

Vf, Vi and a for both drivers is same as per the question. Therefore, distance covered by both car after application of brakes will also be same.

So, the difference in distance covered occurs before application of brakes during response time. Since, the car is in uniform speed before applying brakes. Therefore, following equation shall be used:

s = vt

FOR SOBER DRIVER:

v = (50 mi/h)(1 h/ 3600 s)(5280 ft/mi) = 73.33 ft/s

t = 0.33 s

s = s₁

Therefore,

s₁ = (73.33 ft/s)(0.33 s)

s₁ = 24.2 ft

FOR DRUNK DRIVER:

v = (50 mi/h)(1 h/ 3600 s)(5280 ft/mi) = 73.33 ft/s

t = 1 s

s = s₂

Therefore,

s₂ = (73.33 ft/s)(1 s)

s₂ = 73.33 ft

Now, the distance traveled by drunk driver's car further than sober driver's car is given by:

ΔS = s₂ - s₁

ΔS = 73.33 ft - 24.2 ft

<u>ΔS = 49.13 ft</u>

6 0
3 years ago
What is the magnitude of the electric field strength between them, if the potential 7.95 cm from the zero volt plate (and 2.05 c
Dmitriy789 [7]

Answer:

ΔVab = Ed

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E = Va/ d

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Explanation:

the potential difference between two uniform plates is calculated by the formula of electric field.

6 0
3 years ago
How many bases are there in baseball before reaching home plate?
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There are 3 bases before you reach home plate.
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3 years ago
A bicyclist of mass 112 kg rides in a circle at a speed of 8.9 m/s. If the radius of the circle is 15.5 m, what is the centripet
kogti [31]
The centripetal force, Fc, is calculated through the equation, 
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where m is the mass,v is the velocity, and r is the radius. 
Substituting the known values,
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Therefore, the centripetal force of the bicyclist is approximately 572.36 N. 
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3 years ago
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