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3 years ago

6

the saclike structure that surrounds the glomerulus is the. a. renal pelvis b. calyx c. bowman’s capsule d. cortex e. none of th

e above

1 answer:

Irina18 [472]3 years ago

3 0

i believe that it is the bowman capsule

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A man weighing 700 NN and a woman weighing 440 NN have the same momentum. What is the ratio of the man's kinetic energy KmKmK_m

Eduardwww [97]

Answer:

The ratio of the man's kinetic energy to that of the woman's kinetic energy is 0.629.

Explanation:

Given;

weight of the man, W = 700 N

Weight of the woman, W = 440 N

momentum is given by;

$P = mv\\\\v = \frac{P}{m}$

Kinetic energy of the man;

$K_m = \frac{1}{2}m_m(\frac{P_m}{m_m})^2 \\\\K_m = \frac{P_m^2}{2m_m}$

Momentum of the man is calculated as;

$P_m^2 = 2m_mK_m$

The kinetic energy of the woman is given by;

$K_w = \frac{P_w^2}{2m_w}$

The momentum of the woman is given;

$P_w^2 = 2m_wK_w$

Since, momentum of the man = momentum of the woman

$P_m^2 = P_w^2$

$2m_mK_m = 2m_wK_w\\\\\frac{K_m}{K_w} = \frac{2m_w}{2m_m}\\\\\frac{K_m}{K_w} = \frac{m_w}{m_m}$

mass of the mas = 700 / 9.8 = 71.429

mass of the woman is = 440 / 9.8 = 44.898

$\frac{K_m}{K_w} = \frac{44.898}{71.429}\\\\\frac{K_m}{K_w} =0.629$

Therefore, the ratio of the man's kinetic energy to that of the woman's kinetic energy is 0.629.

3 0

3 years ago

The place kicker on a football team kicks a ball from ground level with an initial speed of 4.00 m/s at an angle of 29.0° above

mafiozo [28]

Answer:

0.4 s

Explanation:

The time that the ball is in the air can be found with the next formula:

$time = t = \frac{2v_{o}sen\beta}{g}$

where $v_{o}$ is the initial velocity of the ball, in this case:

$v_{o}=4.00 m/s$

β is the angle: β = 29.0°

And g is the acceleration of gravity: $g=9.81m/s^2$

Replacing all the values to find t, we have:

$time = t = \frac{2(4m/s)sen(29)}{9.81m/s^2} = 0.4s$

Thus, the ball is 0.4s in the air.

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4 years ago

What is the acceleration of the object in the graph?

viktelen [127]

Answer:

-0.8 m/s²

Explanation:

Acceleration is the slope of a velocity vs. time graph.

a = Δv / Δt

a = (0 m/s − 12 m/s) / (15 s − 0 s)

a = -0.8 m/s²

3 0

3 years ago

Convert 700kg into grams<br>

Verdich [7]

Answer:

700,000g

Explanation:

1kg = 1000 Grams (or any kg x 1000)

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Greg is in a bike race. at mile marker four (out of ten), his speed was measured at 13.5 mph. which best describes the measured

posledela

The instantaneous speed.

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