Answer:
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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.
I think the answer is <span>D. The magnetic field at point X points into the page, and the magnetic field at point Y points out of the page.</span>
The force of attraction between the opposite charges of the ions in an ionic compound is an ionic bond.
<u>Explanation:</u>
The transfer process of valence electron between atoms referred as ionic bond. This is a kind of chemical bonds which can create two oppositely charged ions. In the presence of ionic bonds, the metal loses electrons and becomes a positive charge cation, while non-metal accepts these electrons and becomes a negative charge anion.
Here, more than 1 electron can be emitted or received to meet the octet principle and the net charge of the compound should be zero. For example: Table salt. In this compound, sodium loses the electron to become
, while the chlorine loses the electron to become
.
From the calculation, we can see that the force that moves the box forward is 5.7 N.
<h3>What is frictional force?</h3>
The term frictional force refers to the force that opposes motion. Given that;
ma = ukmgcosθ + F
Let F be the forward force.
Hence;
F = ma - ukmgcosθ
F = 4 * 3 - (0.32 * 4.00 * 9.8 * sin 30)
F = 5.7 N
Learn more about frictional force:brainly.com/question/14662717
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