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3 years ago

Select all that apply. A vector always consists of _____. size velocity distance direction

Physics

2 answers:

pashok25 [27]3 years ago

5 0

<em>The answer is Size and Direction</em>

Ahat [919]3 years ago

4 0

The correct answer is C) size and D) direction
Vector quantities possess both size and direction while scalars possess only size. Hope this helps.

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Who was the english thinker who established the three laws of motion?.

Tatiana [17]

Answer:

Isaac Newton

Explanation:

Because i learned this in school

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2 years ago

An adaptation of an animal in the desert might be to

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Keep cool by being active at night, whereas some other desert animals get away from the sun's heat by digging underground burrows.

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2 years ago

A stationary boat in the ocean is experiencing waves from a storm. the waves move at 56 km/h and have a wavelength of 160 m, bot

Lera25 [3.4K]

The wavelength $\lambda$ of the wave is 160 m, and this is the distance between two consecutive crests. The boat is located at a crest of the wave, this means that the first trough is located 80 meters from the boat (because the distance between a crest and a trough is half the wavelength).

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3 years ago

On a roller coaster ride the total mass of a cart - with two passengers included - is 319 kg. Peak K is at 43.6 m above the grou

Dafna1 [17]

The mechanical energy is lost due to friction between the two peak is 78,458.688 J

<h3>What is mechanical energy?</h3>

The mechanical energy is the sum of kinetic energy and the potential energy of an object at any instant of time.

M.E = KE +PE

Given is a roller coaster ride the total mass of a cart - with two passengers included - is 319 kg. Peak K is at 43.6 m above the ground and peak L is at 24.4 m. At location K the speed of the cart is 16.4 m/s, and at location L it is 12.4 m/s.

Total energy at peak K,

TE₁ = 1/2 mv₁² +mgh₁

Substitute the values, we get

TE₁ = 1/2 x319 x 16.4² +319 x 9.81 x 43.6

TE₁ = 179,340. 524 J

Total energy at peak L,

TE₂ = 1/2 mv₂² +mgh₂

Substitute the values, we get

TE₂ = 1/2 x319 x 12.4² +319 x 9.81 x 24.4

TE₂ = 100,881. 836 J

The mechanical energy lost is

M.E = TE₁ -TE₂

M.E = 179,340. 524 J - 100,881. 836 J

M.E = 78,458.688 J

Thus, the mechanical energy is lost due to friction between the two peak i

Learn more about mechanical energy.

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1 year ago

A rocket is fired straight up. It contains two stages (Stage 1 and Stage 2) of solid rocket fuel that are designed to burn for 1

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Answer: a) 1875m. (b) 8.66s

Explanation:

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3 years ago