All categories

3 years ago

2. A solid plastic cube of side 0.2 m is submerged in a liquid of density 0.8 hgm calculate the

Physics

1 answer:

kotegsom [21]3 years ago

3 0

Answer:

vpg = 0.064 N

Explanation:

Upthrust = Volume of fluid displaced

upthrust liquid on the cube g=10ms−2

vpg =0.2 x 0.2 x 0.2 x0.8 x 10= 0.064N

vpg = 0.064 N

hope it helps.

You might be interested in

What was Laurentia and what lands was it composed of? What happened to it?

snow_lady [41]

Laurentia, also called the North American Craton, is a huge continental craton. It forms the ancient geological core of the continent of North America. It is made up of present day North America and Greenland. About 300 million years ago, it collided with the southern hemispheric continent of Gondwana and formed the supercontinent called Pangaea.

4 0

3 years ago

What is the velocity of a plane that traveled 3000 miles from new york to california in 5 hours

AnnZ [28]

The velocity is (3,000/5) = 600 miles per hour west .

5 0

3 years ago

Which of the following will result in learning violent behavior through observational learning?

vovikov84 [41]

What are the choices?

5 0

3 years ago

The diagram shows a charge moving into an electric field.

VARVARA [1.3K]

The charge will most likely leave the electric field near C) Y

6 0

3 years ago

Read 2 more answers

A stone is thrown from the top of a building 30m high. If it strikes the ground at an angle 45, with what speed was it thrown?

sasho [114]

Answer:

24.2 m/s

Explanation:

The stone strikes the ground at an angle of 45 degrees: this means that its vertical velocity is equal (in magnitude) to its horizontal velocity, in fact:

$tan \theta = \frac{|v_y|}{v_x}\\tan 45^{\circ} = 1 \rightarrow |v_y| = v_x$

The motion along the vertical direction is a uniformly accelerated motion, so we can find the final vertical velocity using the following suvat equation

$v_y^2 -u_y^2 = 2as$

where

$v_y$ is the final vertical velocity

$u_y = 0$ is the initial vertical velocity (zero because the stone is thrown horizontally)

$a=g=9.8 m/s^2$ is the acceleration of gravity (we take downward as positive direction)

s = 30 m is the vertical displacement

Solving for vy,

$v_y = \sqrt{u_y^2+2as}=\sqrt{0+2(9.8)(30)}=24.2 m/s$

This means that the horizontal velocity is also 24.2 m/s: and since the horizontal velocity is constant during the whole motion (there is no acceleration in the horizontal direction), this means that the stone was thrown exactly at 24.2 m/s.

7 0

3 years ago