Ask question

Ask question

All categories

DanielleElmas [232]

3 years ago

6

Approximately how much of earths surface is covered by land

1 answer:

vekshin13 years ago

3 0

The approximately number of earths surface is covered by land is 29 percent

You might be interested in

Radiation is a method of thermal energy transfer that moves-

Montano1993 [528]

Answer:

-heat

Explanation:

Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth. In fact, all hot things radiate heat to cooler things. When the heat waves hits the cooler thing, they make the molecules of the cooler object speed up.

Good luck!!

6 0

2 years ago

Read 2 more answers

Fill in the Blank

irinina [24]

Failed...
I’m not entirely sure

7 0

3 years ago

Read 2 more answers

What is the magnitude of the force exerted by the biceps fbiceps? What is the magnitude of the force exerted by the elbow felbow

Slav-nsk [51]

Answer:

<u> </u><u>The magnitude of the force exerted by the biceps </u> $f_b_i_c_e_p_s$ <u> is 218.38N</u>

<u>The magnitude of the force exerted by the elbow </u> $f_e_l_b_o_w$ <u> is 194.37N</u>

Explanation:

Firstly , lets calculate the magnitude of force exerted by biceps $f_b_i_c_e_p_s$ -

Mass of the forearm=

$m_f=1.50kg$

Mass of the ball =

$m_b_a_l_l=950g$

= 0.950kg

so, weight of the forearm=

$w_f=m_f$ g

weight of the ball=

$w_b_a_l_l=m_b_a_l_l$ g

Now , balancing torque about the elbow , we have-

$F_b_i_c_e_p_s\times d_b_i_c_e_p_s= w_f\times\frac{d_b_a_l_l}{2} + w_b_a_l_l\times d_b_a_l_l$

(here , distance of the bicep is 2.50cm = 0.025m and distance of the ball is 36cm= 0.36m)

Now putting the given values in the formula -

$F_b_i_c_e_p_s\times 0.025= 0.95\times9.8\times\frac{0.36}{2} +1.50\times 0.36$

$F_b_i_c_e_p_s=218.38N$

Now, lets calculate the force exerted by elbow $F_e_l_b_o_w$ -

Balancing the vertical forces

$F_b_i_c_e_p_s=F_e_l_b_o_w+w_f+w_b_a_l_l$

$F_e_l_b_o_w = 218.38-(1.00\times9.8)-(0.95\times9.8)$

$F_e_l_b_o_w=194.37N$

8 0

3 years ago

What is the relationship between mutation, the cell cycle, and cancer? Select all statements that apply.

OverLord2011 [107]

Cancer is a mutation of multiple cells through the cell cycle. cancer doesn’t only effect one cell, but effects many

5 0

3 years ago

How many steps does a dichotomous key invole

cluponka [151]

A dichotomous key involves 3 keys

7 0

3 years ago

Read 2 more answers