The person protected by insurance policy

In order to attain orbit around earth, the ATLAS-V rocket must accelerate up to a

IrinaK [193]

A) average acceleration = final velocity - initial velocity / time

= 7700 - 0 / 11

= 700ms^-2

B) force = mass x acceleration

= (3.05 x 105) x 700

= 320.25 x 700

= 224,175N

7 0

3 years ago

Fifteen identical particles have various speeds: one has a speed of 2.00 m/s, two have speeds of 3.00 m/s, three have speeds of

Evgesh-ka [11]

Answer:

a) $V=7.5m/s$

b) $rms=8.4m/s$

c) Generally the most probable speed is 8m/s as it the most posses by particles being the average

Explanation:

From the question we are told that:

Sample size N=15

$Speed 1 v_1=2m/s\\\\Speed 2 v_2=3m/s\\\\Speed 3 v_2=5m/s\\\\Speed 4 v_4=8m/s\\\\Speed 3 v_5=9m/s\\\\Speed 2 v_6=15m/s\\\\$

Generally the equation for Average speed is mathematically given by

$V_{avg}=\frac{\sum(nv)}{N}$

Therefore

$V_{avg}=\frac{(2+2(3)+3(5)+4(8)+3(9)+2(15))}{15}$

$V=7.5m/s$

b)

Generally the equation for RMS speed of the particle is mathematically given by

$rms=\sqrt{\frac{\sum(nv^2)}{N}}$

$rms=\sqrt{\frac{2^2+2(3)^2+3(5)^2+4(8)^2+3(9)^2+2(15)^2}{15}}$

$rms=\sqrt{69.73}$

$rms=8.4m/s$

c

Generally the most probable speed is 8m/s as it the most posses by particles being the average

4 0

3 years ago

A spring has a constant k= 10.32 N/m and is hung vertically. A 0.400kg mass is suspended from the spring. What is the displaceme

alukav5142 [94]

Answer:

displacement (x) = 0.003798 meters

Explanation:

from the fact that the string is hung vertically we can deduce that:

Total force acting on the mass = Fs (by spring) + Fg (by gravity)

where

Fs = k*x , x is the displacement..

Fg = m*g

then:

Ftot = m*a, but a = 0 m/(s^2) because the mass becames stationary.

Ftot = 0

Fs + Fg = 0

by direction, take down as negative.

Fs - Fg = 0

k*x = m*g

x = m*g/k = [(0.400)(9.8)]/(10.32)

= 0.3798 meters

4 0

3 years ago

How do volcanoes above hot spots differ from volcanoes above subduction zones?

BARSIC [14]

C. Volcanoes above subduction zones have lava that is not basaltic.

3 0

3 years ago

Read 2 more answers

A block with mass M is placed on an inclined plane with slope angle q and is connected to a second hanging block with mass m by

tensa zangetsu [6.8K]

Answer:

The mass of the block m is:

$m=M(sin(\theta)+\mu_{s}cos(\theta))$

Explanation:

Let's analyze the block by parts

For the block M

$T-W_{x}-f_{f}=0$ (1)

Where:

T is the tension
W(x) is the component of the weight in the x-direction
F(f) is the friction force

$T-Mgsin(\theta)-\mu_{s}N=0$

$T-Mgsin(\theta)-\mu_{s}Mgcos(\theta)=0$

For the block m

$T-W=0$

$T=mg$ (2)

Now, let's combines equation (1) and (2):

$mg-Mgsin(\theta)-\mu_{s}Mgcos(\theta)=0$

Finally, let's solve it for block m.

$mg-Mg(sin(\theta)+\mu_{s}cos(\theta))=0$

$m=M(sin(\theta)+\mu_{s}cos(\theta))$

I hope it helps you!

7 0

3 years ago