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aleksandrvk [35]
2 years ago
14

To which group/family does each of these belong? A. Sulfur _________ B. Sodium _________ C. Argon _________ D. Silicon _________

E. Chlorine _________ F. Phosphorus_________
Physics
1 answer:
ArbitrLikvidat [17]2 years ago
7 0

Answer:

A. Sulfur _________ group 16 chalcogens

B. Sodium _________ group 1 alkali metals

C. Argon _________ group 18 noble gases

D. Silicon _________ group 14 carbon family

E. Chlorine _________ group 17 halogens

F. Phosphorus_________ group 15 pnicogens

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4 years ago
Using the formula below, calculate the kinetic energy of the 6 gram stone going 10 Mph
dusya [7]

Answer:

Explanation:

A wonderful (NOT) mixed unit problem

convert mph to m/s

v = 10 mi/hr(5280 ft/mi)(12 in/ft)(2.54 cm/in) / (100 cm/m) / (3600 s/hr)

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A 3 kg mass is travelling in a circle of 0.1 m radius with a speed of 2 m/s. What is the centripetal acceleration?
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7 0
3 years ago
What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 10v/m?
Snezhnost [94]

Answer:

3.3\cdot 10^{-8}T

Explanation:

The relationship between the amplitude of the electric field and the magnetic field in an electromagnetic wave is

E=cB

where

E is the electric field amplitude

B is the magnetic field amplitude

c is the speed of light

For this electromagnetic wave, we have

E=10 V/m

So we can solve the formula to find B:

B=\frac{E}{c}=\frac{10 V/m}{3\cdot 10^8 m/s}=3.3\cdot 10^{-8}T

6 0
3 years ago
As a runner crosses the finish line of a race, she starts decelerating from a velocity of 9 m/s at a rate of 2 m/s^2. Take the r
Ksivusya [100]

Answer:

- 1 m/s, 20 m

Explanation:

u = 9 m/s, a = - 2 m/s^2, t = 5 sec

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v = u + a t

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s = u t + 1/2 a t^2

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s = 45 - 25 = 20 m

4 0
3 years ago
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