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3 years ago

How is it possible to move man made things

1 answer:

5 0

Answer: Because the human body is designed to use their muscles to create and transfer things from place to place, and that some man-made objects are light enough to be moved..?

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A boy twirls a 15-lb bucket of water in a vertical circle. If the radius of curvature of the path is 4 ft, determine the minimum

chubhunter [2.5K]

Answer:

11.35 m/s

Explanation:

Given,

Weight of the bucket = 15 lb

radius of curvature, r = 4 ft

Minimum speed of the bucket = ?

Using equation of centripetal acceleration

$W=\dfrac{mv^2}{R}$

$15=\dfrac{\dfrac{m}{g}\times v^2}{4}$

$15=\dfrac{\dfrac{15}{32.2}\times v^2}{4}$

$v^2 = 128.8$

$v = 11.35\ m/s$

Speed of the bucket = 11.35 m/s

5 0

3 years ago

What would happen if i build a bomb and destroy Pluto

VLD [36.1K]

Answer:

a what

well it wouldn't matter because it's not counted a planet anyway

Explanation:

8 0

3 years ago

Why do conductors transfer heat faster than insulators?

Nesterboy [21]

Answer:

Conduction is usually faster in certain solids and liquids than in gases. Materials that are good conductors of thermal energy are called thermal conductors. Metals are especially good thermal conductors because they have freely moving electrons that can transfer thermal energy quickly and easily.

Heat transfer by convection happens through the air, and there are millions of minuscule air spaces between the fibers. Heat transfer by radiation is also slow since one fiber must radiate its heat to another.

When we give heat then kinetic energy is increase and this heat is transferred from hot metal to cold metal through this free electrons. As in insulator the free electrons are negligible so that the heat is not transferred from hot junction to cold junction due to absence of this free electrons.

Explanation:

maek me as brainliest

3 0

2 years ago

Read 2 more answers

Enter a value of 3/4 of a full rotation

solmaris [256]

Answer:

270°

Explanation:

A full rotation is 360° so half (2/4) of it is 180° meaning a quarter (1/4) is 90°

So you can do 90+90+90=270

or 180+90=270

6 0

3 years ago

1 Peliminary Questions:

Scilla [17]

The time of flight depends only on the initial velocity and the initial height

Explanation:

An object is said to be in free fall if the only force acting on it is the force of gravity. If this is the case, then the motion of the object in free fall is a uniformly accelerated object, with constant acceleration $g=9.8 m/s^2$ towards the ground. The time of flight can be found by using the suvat equation:

$s=ut+\frac{1}{2}at^2$

where

s is the displacement (which corresponds to the initial height of the object)

u is the initial vertical velocity

$a=g$ is the acceleration

t is the time of flight

Therefore, from the equation, we see that the time of flight depends only on two factors:

s, the initial height of the object
u, its initial velocity

In case the air resistance is not negligible, then the acceleration is no longer constant, and the time of the fall also depends on other factors such as the mass of the object and its shape, which affects the magnitude of the air resistance acting on the body.

Learn more about free fall:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

brainly.com/question/2607086

#LearnwithBrainly

7 0

3 years ago

How is it possible to move man made things​

How is it possible to move man made things