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miss Akunina [59]

4 years ago

15

_________ is affected by your brakes, tires, the road surface, and speed.

1 answer:

Rina8888 [55]4 years ago

6 0

Answer choices are:

A. Inertia

B. Friction

C. Kinetic Energy

D. Gravity

____________________________________________________________

Correct answer choice is:

B) Friction

____________________________________________________________

Explanation:

Friction is a force that takes back the action of a sliding object. Friction is just that simple. You will find resistance universally that things come into connection with each other. The force works in the opposing direction to the way an object wants to slide. It is the outcome of the electromagnetic attraction among charged particles in two moving surfaces.

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poop

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3 years ago

Match the term with each description:

Alex_Xolod [135]

Answer:

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all I got

4 0

3 years ago

The greek letter (delta) indicates a(n)

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A
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6 0

4 years ago

Find the work done in pumping gasoline that weighs 6600 newtons per cubic meter. A cylindrical gasoline tank 3 meters in diamete

almond37 [142]

Answer:

<em>work done in pumping the entire fuel is 1399761 J</em>

Explanation:

weight per volume of the gasoline = 6600 N/m^3

diameter of the tank = 3 m

length of the tank = 6 m

The height of the tractor tank above the top of the tank = 5 m

The total volume of the fuel is gotten below

we know that the tank is cylindrical.

<em>we assume that the fuel completely fills the tank.</em>

therefore, the volume of a cylinder =

where r = radius = diameter ÷ 2 = 3/2 = 1.5 m

volume of the cylinder = 3.142 x x 6 = 42.417 m^3

we then proceed to find the total weight of the fuel in Newton

total weight = (weight per volume) x volume

total weight = 6600 x 42.417 = 279952.2 N

therefore,

the work done to pump the fuel through to the 5 m height = (total weight of the fuel) x (height through which the fuel is pumped)

work done in pumping = 279952.2 x 5 = <em>1399761 J</em>

5 0

3 years ago

At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.70 m/s2. At the same inst

kifflom [539]

Answer:

66.85 m

Explanation:

We are given that

Acceleration ,a= $2.7m/s^2$

Speed of truck, v=9.5 m/s

We have to find the distance beyond which the traffic signal will the automobile overtake the truck.

Initial speed of automobile, u=0

We know that

$s=ut+\frac{1}{2}at^2$

Using the formula

$s=0+\frac{1}{2}(27)t^2=\frac{27}{2}t^2$

For constant speed

Acceleration, a=0

Again

$s=vt+0=9.5t$

$9.5t=\frac{27}{2}t^2$

$t=\frac{9.5\times 2}{2.7}=7.037s$

Substitute the value of t

$x=9.5(7.037)=66.85m$

Hence, the distance beyond which the traffic signal will the automobile overtake the truck=66.85 m

3 0

3 years ago