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iragen [17]
3 years ago
9

Which is a chemical property of iron?

Physics
2 answers:
miss Akunina [59]3 years ago
8 0
I think its A as in density
aliya0001 [1]3 years ago
5 0
Some of the sites im on say its c.
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A point charge has q=1.0×10-6
dmitriy555 [2]

Since the 2 points form a triangle with hypothenuse of √5 [ √(1²+2²)],

I guess apply the formula :

v = kq \div r

with r as √5 and q as 1x10^-6

not sure about this answer tho

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8 0
3 years ago
Is a charge of 5.8×10^-18 is possible
Dmitry_Shevchenko [17]
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3 years ago
Please need help with this
Naddika [18.5K]

First one I believe but im not completely sure

8 0
3 years ago
¡¡first convert revolutions per second to
katovenus [111]

Answer:

a. 5.23 m/s² b. 44.23 N

Explanation:

a. What is the centripetal acceleration of the  hammer?  

The centripetal acceleration a = rω² where r = radius of circle and ω = angular speed.

Now r = length of chain = 1.4 m and ω = 0.595 rev/s = 0.595 × 2π/s = 3.74 rad/s.

So a = rω²

= 1.4 m × (3.74 rad/s)²

= 5.23 m/s²

b. What is the tension in the chain?

The tension in the chain, T = ma where m = mass of hammer = 8.45 kg and a = centripetal acceleration of hammer = 5.23 m/s². This tension is the centripetal force on the hammer.

So, T = 8.45 kg × 5.23 m/s²

= 44.23 N

6 0
3 years ago
A 150 kg car hits a wall with 45 N of force, what was its acceleration?​
alisha [4.7K]

Answer:

a = 0.3 m/s²

Explanation:

Given: 45 N, 150 kg

To find: a

Formula: a = \frac{F}{m}

Solution: To find a, divide the force by the weight  

A = F ÷ m

=  45 ÷  150

= 0.3 m/s²

Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.

4 0
3 years ago
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