Answer: Friction between the two surfaces converts kinetic energy into thermal energy.
Explanation: Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.
Answer:
Technician A says that this is because the front wheel cylinders are closer to the master cylinder than are the rear wheel cylinders.
Explanation:
Since the position of cylinder is near the front wheel so the normal force of the front wheel is more than the normal force on the rear wheel
as we know that the center of mass of the wheel is shifted towards the front wheel as the balancing is done with reference to its center of mass
so we will have
also we have
so here we can say
friction force on front wheel will be more
so here front wheel has to do more work to stop the vehicle
Answer: Thus, the force is directed 72.5° above the horizontal.
Explanation:
The magnitude of the force, F = 15 N
let this force be detected at angle θ from the horizontal, then horizontal component of force is: F cos θ
and vertical component is F sin θ
Horizontal component is given,
F cos θ = 4.5 N
⇒15 N cos θ = 4.5 N
⇒ cos θ = 0.3
⇒ θ = cos⁻¹ 0.3 = 72.5°
Depends on what type of mirror that is. I am going to assume this is a plain mirror (from the phrase), which means the height and width of the object and image is exactly the same.
Answer:Commutative property of multiplication: Changing the order of factors does not change the product. For example, 4 \times 3 = 3 \times 44×3=3×44, times, 3, equals, 3, times, 4.
Associative property of multiplication: Changing the grouping of factors does not change the product. For example, (2 \times 3) \times 4 = 2 \times (3 \times 4)(2×3)×4=2×(3×4)left parenthesis, 2, times, 3, right parenthesis, times, 4, equals, 2, times, left parenthesis, 3, times, 4, right parenthesis.
Identity property o
Explanation: