All categories

3 years ago

Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink? Explain your answer.

Physics

2 answers:

umka21 [38]3 years ago

7 0

The rock will sink because the rock is denser than the water

aalyn [17]3 years ago

3 0

Answer: It sinks

Explanation: Density of water is approximately $1.0 gcm^{-3}$

Any substance that has higher density than that of water will sink and any substance that has density lesser than water will float.

$Density=\frac{mass}{volume}$

Thus a higher density substance has more mass for the amount of volume it displaces and hence it sinks.

When Noah drops a rock in water, the rock will sink as it has a higher value of density $(1.73gcm^{-3})$ than that of water $(1.0 gcm^{-3})$

You might be interested in

Why are you able to observe the Doppler effect on earth with sound waves but not with light waves?

VladimirAG [237]

Answer: When an ambulance passes with its siren blaring, you hear the pitch of the siren change: as it approaches, the siren’s pitch sounds higher than when it is moving away from you. This change is a common physical demonstration of the Doppler effect.

Explanation:

6 0

4 years ago

A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A

Sonja [21]

Answer:

I = 70.86 kg.m²

Explanation:

given,

radius of the cylinder = 0.33 m

Tangential force = 210 N

angular acceleration = 0.978 rad/s²

we know,

$\tau = F \times r$

and

$\tau =I \times \alpha$

computing both the torque equation together

$F \times r = I \times \alpha$

$I = \dfrac{F\times r}{\alpha}$

$I = \dfrac{210\times 0.33}{0.978}$

I = 70.86 kg.m²

Moment of inertia of the wheel is equal to 70.86 Kg.m²

3 0

4 years ago

What does electrons and the nucleus have in common?

timama [110]

<span>All atoms of the same element have the same number of protons in the nucleus and consequently have the same atomic number. All atoms of the same neutral element have the same number of electrons as well.</span>

8 0

4 years ago

When playing a game of disc golf, each throw to your target is considered to be a O Point O Stroke O Hit O Toss

Hunter-Best [27]

Answer:

an o point i think

Explanation:

5 0

3 years ago

An object of mass m is dropped from height h above a planet of mass M and radius R. Find an expression for the objectâ€™s speed

Oksana_A [137]

Answer: