Answer:
Cesium (Cs)
very low electronegativity
there are a bunch of cool videos online about Cesium reacting with water
most are faked but the general idea is a cool one as Cesium very quickly and easily gives up it's one and only outermost (or valence) electron
Explanation:
Answer:
2.5 x 10⁷ J
Explanation:
F = thrust of the engine = 2.3 x 10⁵ N
d = distance traveled = 87 m
Work done by the engine is given as
W = F d = (2.3 x 10⁵) (87) = 200.1 x 10⁵ J
W' = Net work done
W'' = work done by catapult
KE₀ = initial kinetic energy = 0 J
KE = final kinetic energy = 4.5 x 10⁷ J
Net work done is given as
W' = KE - KE₀
W' = 4.5 x 10⁷ J
We know that
W' = W + W''
4.5 x 10⁷ = 2.001 x 10⁷ + W''
W'' = 2.5 x 10⁷ J
Geosphere, hydrosphere, atmosphere, and biosphere.
Therefore, the correct answer is D.
Answer:
1110 N
Explanation:
First, find the acceleration.
Given:
Δx = 300 m
v₀ = 85.5 km/h = 23.75 m/s
v = 0 m/s
Find: a
v² = v₀² + 2aΔx
(0 m/s)² = (23.75 m/s)² + 2a (300 m)
a = -0.94 m/s²
Find the force:
F = ma
F = (1180 kg) (-0.94 m/s²)
F = -1110 N
The magnitude of the force is 1110 N.
<h2>
10.5</h2><h3>
remember pemdas</h3>
- parentheses
- exponents <em>excluded for this problem</em>
- multiplication
- division
- addition
- subtraction
<h3>step 1. start with what is at the top of the list.</h3>
<h3>step 2. do 1 times 3 since it comes before division, and is in parentheses.</h3>
1 × 3 = 3
<h3>step 3. find 36 divided by 2</h3>
36 ÷ 2 = 18
<h3>step 4. add the values together</h3>
18 + 3 = 21
<h3>step 5. find 14 times 3</h3>
14 × 3 = 42 <em>you can also do 7 × 6 and will get the same result because 7 is half of 14 and 3 is half of 6</em>
<h3>step 6. add what is outside the parentheses</h3>
21 + 42 = 63
<h3>step 7. divide by 6</h3>
63 ÷ 6 = 10.5
10 remainder of 3 <em>remainder means left over</em>
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