3 years ago

How many atoms are in something determines its

Physics

1 answer:

inn [45]3 years ago

5 0

How many atoms are in something determines it "mass"

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Predict the date of the next full moon.

lapo4ka [179]

Answer:

The 19th

Explanation:

going based off of the calandar, you just start from the 4 at the bottom and then just count up as you go through it agains starting back at the top.

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3 years ago

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A 45.00 kg person in a 43.00 kg cart is coasting with a speed of 19 m/s before it goes up a hill. there is no friction, what is

HACTEHA [7]

Answer:

the maximum vertical height the person in the cart can reach is 18.42 m

Explanation:

Given;

mass of the person in cart, m₁ = 45 kg

mass of the cart, m₂ = 43 kg

acceleration due to gravity, g = 9.8 m/s²

final speed of the cart before it goes up the hill, v = 19 m/s

Apply the principle of conservation of energy;

$mgh_{max} = \frac{1}{2}mv^2_{max}\\\\ gh_{max} = \frac{1}{2}v^2_{max}\\\\h_{max} = \frac{v^2_{max}}{2g} \\\\h_{max} =\frac{(19)^2}{2\times 9.8} \\\\h_{max} = 18.42 \ m$

Therefore, the maximum vertical height the person in the cart can reach is 18.42 m

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3 years ago

What objects have less resistance

Leto [7]

Answer:

Free fall and air resistance

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3 years ago

A bird can fly 25 km/h. How long does it take to fly 15 km?

Amanda [17]

25 km/h means that 15 kilometers will be 15/25ths of an hour. Therefore, 3/5 of an hour is 36 minutes, so it would take 36 minutes to fly that distance.

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3 years ago

If I have an object that starts from rest and reaches a velocity of 25m/s over a distance of 11m what is the acceleration of the

Elodia [21]

Answer:

Here is something that may help you!!

Explanation:

I found it in a cite (not that I'm plagiarizing, or anything).

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3 years ago