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3 years ago

What's Inertia ????☁️☁️

Physics

1 answer:

Assoli18 [71]3 years ago

3 0

Explanation:

the inability to change the position from rest to motion or motion to rest by themselves is inertia.

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An airplane traveling from San Francisco northeast to Chicago travels 1260 km in 3.5 h. What is the airplanes average velocity?

IrinaK [193]

Answer:

Average velocity = 360km/h due Northeast.

Explanation:

Given the following data;

Distance = 1260km

Time = 3.5h.

Velocity =?

Velocity can be defined as the rate of change in displacement (distance) with time. Velocity is a vector quantity and as such it has both magnitude and direction.

Mathematically, velocity is given by the equation;

$Velocity = \frac{distance}{time}$

$V = \frac{d}{t}$

Substituting into the above equation;

$V = \frac{1260}{3.5}$

Velocity, V = 360km/h.

Since velocity is a vector quantity, it must have both magnitude and direction.

Hence, the average velocity of the airplane is 360km/h due Northeast.

6 0

4 years ago

The rear window in a car is approximately a rectangle, 1.3 m wide and 0.30 m high. The inside rear-view mirror is 0.50 m from th

maria [59]

Answer:

Height of mirror 0.075 m

width of mirror 0.325 m

Explanation:

given data

wide = 1.3 m

high = 0.30 m

driver’s eyes = 0.50 m

rear window = 1.50 m

solution

we take here height / width of the mirror is

height / width = $\frac{h}{w}$ .................1

and

height /width of the window is

height /width = $\frac{h_w}{w_w}$ .................2

and

distance of eye / window by the mirror is

distance of eye / window = $\frac{x_e}{x_w}$ .................3

so here

θ = θi = θr ....................4

and tanθ for vertical is

tanθ = $\frac{h}{x_e}$

tanθ = $\frac{h_w}{(x_e + x_w)}$ ....................5

h = $h_w \times \frac{x_e}{(x_e + x_e)}$ ....................6

put here value and we get

$h = 0.30 \times \frac{0.50}{(0.50 + 1.50)}$

h = 0.075 m

and

when we take here tanθ for horizontal than it will be

tanθ = $\frac{w}{x_e}$

tanθ = $\frac{w_w}{(x_e + x_w)}$ .......................7

$w = w_w \times \frac{x_e}{(x_e + x_w)}$ ....................8

put here value and we get

$w = 1.3 \times \frac{0.50}{(0.50 + 1.50)}$

w = 0.325 m

7 0

3 years ago

What causes clouds to form on the upwind side of mountain ranges

Makovka662 [10]

I believe it’s because of the air from the lower part of the mountain adjusting to the climate at the top. Mountains cause air to rise, and when that air rises it cools down creating the clouds.

Hope I helped!

8 0

3 years ago

How do you calculate the effective resistance in a parallel circuit?

Degger [83]

Parallel CircuitsThe voltage drop is the same across each parallel branch.The sum of the current in each individual branch is equal to the current outside the branches.The equivalent or overall resistance of the collection of resistors is given by the equation. 1/Req = 1/R1 + 1/R2 + 1/R3 ...

8 0

3 years ago

How much voltage is required to run 0.42 A of current through a 150

igomit [66]

The voltage in the resistor is 63 V

Explanation:

We can solve the problem by applying Ohm's law, which states the relationship between voltage, current and resistance in a resistor:

$V=RI$