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3 years ago

A translation of a rigid body is equivalent to a rotation about an infinitely distant axis. True O False

Physics

1 answer:

lukranit [14]3 years ago

8 0

Answer:

TRUE

Explanation:

the correct answer for the given statement is TRUE

A translation motion is the motion of the body in which the object move from one point to another.

In transnational motion ω = 0

A rotational motion is one in which body rotates about its axis and have angular momentum.

we know v = r ω

ω = v/r

when r = ∞ ω = 0

hence, the statement is True.

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What unit is electrical energy typically measured in on energy bills?

velikii [3]

Electricity is measured in units of power called Watts

6 0

3 years ago

Read 2 more answers

A reaction taking place in a container with a piston-cylinder assembly absorbs 4850. J of heat and has a change in the internal

Maslowich

Answer:

$V_f = 16.3 Ltr$

Explanation:

As per first law of thermodynamics we know that

heat absorbed = change in internal energy + Work done

so we have

$Heat = 4850 J$

$\Delta U = 1618.5 J$

so work done is given as

$4850 = 1618.5 + W$

$W = 3231.5 J$

now we know that at constant pressure the work done is given as

$W = P\Delta V$

$3231.5 = P(V_f - V_i)$

$3231.5 = 5.5 \times 1.01 \times 10^5(V_f - 10.5 \times 10^{-3})$

$V_f = 16.3 \times 10^{-3} m^3$

or we have

$V_f = 16.3 Ltr$

6 0

3 years ago

In February 1955, a paratrooper fell 1200 ft from an

-Dominant- [34]

Answer:

$s=1.1107\ m$ is the minimum depth of snow for survivable stopping.

Explanation:

Given:

terminal velocity of fall, $u=56\ m.s^{-1}$

mass of the paratrooper, $m=85\ kg$

force on the paratrooper by the ice to stop him, $F=1.2\times 10^5\ N$

Firstly, we calculate the deceleration caused in the snow:

$a=\frac{F}{m}$

$a=\frac{120000}{85}$

$a=1411.765\ m.s^{-2}$

Now, using equation of motion:

$v^2=u^2+2a.s$ ....................(1)

where:

v = final velocity of the body after stopping

u = initial velocity of the body just before hitting the snow

a = acceleration of the body in the snow

s = distance through in the snow

Putting respective values in eq. (1)

$0^2=56^2+2\times (-1411.765)\times s$

$s=1.1107\ m$

5 0

3 years ago

When you stand with the wind blowing on your back, the low pressure center is

yan [13]

✷ Question: When you stand with the wind blowing on your back, the low pressure center is _____.

Answer: Letter A

✐ Explanation: When wind hits your back, all the molecules are in front of you.

Hope that helps! ★ If you have further questions or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia

5 0

3 years ago

Read 2 more answers

Answer and explanation please, much appreciated!!

NNADVOKAT [17]

Answer:

Done

Explanation:

I already answered this problem when you had previously asked for it. Kindly refer that solution.

3 0

2 years ago