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garik1379 [7]
3 years ago
13

when Jackson throws a baseball in a straight path, what two forces cause the ball to eventually stop moving?

Physics
2 answers:
aleksklad [387]3 years ago
5 0
#1).  Air resistance while it's still in the air

-- gravity eventually brings it down to the ground,
    but doesn't make it stop moving

#2).  Friction with the grass after it hits the ground.
nikklg [1K]3 years ago
3 0
Resistance (from the air) and gravity
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4 years ago
Calculate the difference in blood pressure between the feet and top of the head for a person who is 1.70 m tall.
cupoosta [38]

Answer:

P_2 - P_1 = 1.8 * 10^4\ Pa

Explanation:

Given

Height (h) = 1.70m

Required

Determine the difference in the blood pressure from feet to top

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The second law is represented as:

P_2 = P_1 + pgd

Subtract P1 from both sides

P_2 - P_1 = pgd

Where

p = blood\ density = 1.06 * 10^3kg/m^3

g = acceleration\ of\ gravity = 9.8N/kg

d =height = 1.70m

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So, the expression becomes:

P_2 - P_1 = 1.06 * 10^3 * 9.8 * 1.70

P_2 - P_1 = 17659.6Pa

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3 0
3 years ago
Use differentials to estimate the amount of tin in a closed tin can with diameter 3 inch and height 4 inch, if the top and botto
Aloiza [94]

Answer:

dv = 1.03 inch^3

Explanation:

given data:

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height 4 inch

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we know that volume of the cylinder is given as

v  =\pi r^2 h

by definition of differential we have

dv =\frac{\partial v}{\partial r} dr + \frac{\partial v}{\partial h} dh

where dh = -(0.02  + 0.02) = 0.04 inch    [ sum of top and bottom thickness]

the radius is decreased by 0.02 inch, dr = 0.02 inc,

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\frac{\partial v}{\partial h} = \pi r^2 = 7.06

dv = 37.69*(0.02) + 7.06*(0.04)

dv = 1.03 inch^3

3 0
3 years ago
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