All categories

1 year ago

what minimum volume must the slab have for a 42.0 kg woman to be able to stand on it without getting her feet wet?

1 answer:

8 0

0.525 m³ minimum volume must the slab have for a 42.0 kg woman to be able to stand on it without getting her feet wet.

<h3>How do you find the minimum volume?</h3>

Add the biggest possible inaccuracy to each metric, then multiply to get the biggest volume you can. Subtract the largest potential mistake of each measurement, then multiply, to determine the smallest volume that can be produced.

<h3>Briefing:</h3>

1000 kg/m³ = density of water

920 kg/m³ = density of ice

BF = Woman Weight + Slab Weight

Pvg = 42 + Pvg

V = 42 kg / (1000 - 920)

V = 42 / 80

V = 0.525 m³

To know more about Minimum volume visit:

brainly.com/question/28555971

#SPJ4

You might be interested in

A cosmic ray (an electron or nucleus moving ar speeds close to the speed of light) travels across the Milky Way at a speed of 0.

Fiesta28 [93]

Answer:

Cosmic ray's frame of reference: 99,875 years

Stationary frame of reference: 501,891 years

Explanation:

First of all, we convert the distance from parsec into metres:

$d=30,000 pc =9.26\cdot 10^{20} m$

The speed of the cosmic ray is

$v=0.98 c$

where

$c=3.0 \cdot 10^8 m/s$ is the speed of light. Substituting,

$v=(0.98)(3.0\cdot 10^8)=2.94\cdot 10^8 m/s$

And so, the time taken to complete the journey in the cosmic's ray frame of reference (called proper time) is:

$T_0 = \frac{d}{v}=\frac{9.26\cdot 10^{20}}{2.94\cdot 10^8}=3.15\cdot 10^{12} s$

Converting into years,

$T_0 = \frac{3.15\cdot 10^{12}}{(365\cdot 24\cdot 60 \cdot 60}=99,875 years$

Instead, the time elapsed in the stationary frame of reference is given by Lorentz transformation:

$T=\frac{T_0}{\sqrt{1-(\frac{v}{c^2})^2}}$

And substituting v = 0.98c, we find:

$T=\frac{99,875}{\sqrt{1-(\frac{0.98c}{c})^2}}=501,891 years$

3 0

3 years ago

Can someone plz help me DUE TOMORROW

aksik [14]

Hey the answer to the question is
m = 0.40

3 0

3 years ago

A boy weighs 400N. what is his mass?

Basile [38]

≈40.8kg

this is to take up space

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

400

9.8

m/s

≈

40.8

4 0

3 years ago

Read 2 more answers

The rectangular boat shown below has base dimensions 10.0 cm × 8.0 cm. Each cube has a mass of 40 g, and the liquid in the tank

Paladinen [302]

When boat is sunk into the liquid the net buoyancy on the boat is counterbalanced by weight of the boat

So here weight of the boat = Buoyancy force

let say boat is sunk by distance "h"

now we can say

$F_b = \rho * V * g$

$F_b = 1000*0.10 * 0.08 * h * 9.8$

now by above force balance equation we can write

$m*g = F_b$

$0.040 * 9.8 = 1000 * 0.10 * 0.08 * h * 9.8$

$0.040 = 8h$

$h = 5 * 10^{-3} m$

so boat will sunk by total 5 mm distance

8 0

3 years ago

The record time for a Tour de France cyclist to ascend the 1100-mm-high Alpe d'Huez is 37.5 minmin. The rider and his bike had a

katen-ka-za [31]

Answer:

1945.6 W

Explanation:

We are given that

Height,h=1100 m

Time,t=37.5 min= $37.5\times 60=2250 s$

1 min=60 s

Mass,m=65 kg

Power,P=700 W

We have to find the his total metabolic power.

Power,= $P'=\frac{W}{t}=\frac{mgh}{t}=\frac{65\times 9.8\times 1100}{2250}=311.4 W$

Where $g=9.8m/s^2$

Efficiency =25%

Therefore,Power,P'= $\frac{311.4}{0.25}=1245.6 W$

Total metabolic power=P+P'=700+1245.6=1945.6 W

7 0

3 years ago