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2 years ago

Objects that are denser than water will sink in water. Question 1 options: True False

Physics

2 answers:

Darya [45]2 years ago

6 0

Answer:

true

Explanation:

i think

den301095 [7]2 years ago

4 0

<h3>Answer: True</h3>

For example, a very dense metal will sink to the bottom while something like wood will float on the surface. The wood is less dense compared to the water, which is why it floats. Density is the measure of how much stuff you can pack in a certain volume. The higher the density, the more stuff per volume. Think of it like packing a suitcase. If there's barely anything in there, then we can say its density is low. The more stuff crammed in the suitcase will increase the density (and therefore the weight), while keeping the volume the same.

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Why are movie scenes in outer space often unrealistic?

kifflom [539]

Answer:

see explanation

Explanation:

by my calculations, i believe it may be because they have to pretend to be in space.

8 0

2 years ago

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Check the correctness of formula t=2π √m/k, dimensionally

pantera1 [17]

Hi there! Lets see!

m is mass, and its units are kg
k is the elastic constant measured in newtons per meter (N/m), or kilograms per second squared kg/s²

Therefore:

$\sqrt{\dfrac{m}{k}} =\sqrt{\dfrac{[kg]}{[\dfrac{kg}{s^2}]}} =\sqrt{\dfrac{[kg]}{[kg]}\cdot s^2} = \sqrt{[s]^2} = s$

The period is given in seconds so the formula is dimensionally correct.

4 0

3 years ago

A glider with a mass of 2 kg is moving rightward at 1 m/s. A second glider, with a mass of 3 kg, is also moving rightward, at 5

Sophie [7]

The velocity of the second glider after the collision is 4.33 m/s rightward.

<h3>Velocity of the second glider after the collision</h3>

Apply the principle of conservation of linear momentum;

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

where;

m₁ is mass of first glider
m₂ is mass of second glider
u₁ is initial velocity of first glider
u₂ is initial velocity of second glider
v is the final velocity of the gliders

(2)(1) + (3)(5) = (2)(2) + 3v₂

17 = 4 + 3v₂

3v₂ = 17 - 4

3v₂ = 13

v₂ = 13/3

v₂ = 4.33 m/s

Thus, the velocity of the second glider after the collision is 4.33 m/s rightward.

Learn more about linear momentum here: brainly.com/question/7538238

#SPJ1

7 0

1 year ago

[OU.04] The picture below shows two galaxies. What of these statements best describes a similarity between the two galaxies?

Vitek1552 [10]

Answer:

Explanation: Both have shapes determined by gravitational forces.

7 0

3 years ago

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Equations to use: v= λ ∙ f v=d/t

Anna71 [15]

b. The guitar represents half of the wave length. So the full wave length is 2x0.9m = 1.8m.

Using the given equation, v= λ ∙ f,

the wave is moving back and forth along the string at 1.8 ∙ 256

= 460.8m/s

c. Sound waves travel at 6,000 m/s.

Using the given equation, v=d/t, or d=vt,

train's vibration in 3 seconds travels 6000*3

=18,000m or 18km

6 0

3 years ago

Read 2 more answers