A vector of magnitude 10 makes an angle 0° with the positive x-axis. What is its x-component?
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The x-component is A cos θ.
10 cos 0° = 10 N.
Practice MDCAT 2026 questions with answers and explanations.
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The x-component is A cos θ.
10 cos 0° = 10 N.
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The x-component is A cos θ.
10 cos 60° = 5 N.
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The x-component is A cos θ.
20 cos 30° = 17.32 N.
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The x-component is A cos θ.
15 cos 90° = 0 N.
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The x-component is A cos θ.
12 cos 120° = -6 N.
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The resultant obeys R² = A² + B² + 2AB cosθ.
Substitution gives the stated magnitude.
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The resultant obeys R² = A² + B² + 2AB cosθ.
Substitution gives the stated magnitude.
Choose an option to check your answer.
The resultant obeys R² = A² + B² + 2AB cosθ.
Substitution gives the stated magnitude.
Choose an option to check your answer.
The resultant obeys R² = A² + B² + 2AB cosθ.
Substitution gives the stated magnitude.
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The resultant obeys R² = A² + B² + 2AB cosθ.
Substitution gives the stated magnitude.
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Boyle’s law gives P₁V₁ = P₂V₂.
P₂ = 90×6÷3 = 180 kPa.
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The photon energy equals the difference between levels.
E=5-2 = 3 eV.