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3 years ago

The mechanical advantage of an inclined plane can be increased by increasing the ramp's _____. slope length friction height

Physics

1 answer:

artcher [175]3 years ago

8 0

Answer:

height is the answer i'm pretty sure.

Explanation:

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Two students walk in the same direction along a straight path, at a constant speedâone at 0.90 m/s and the other at 1.90 m/s.

mixer [17]

Answer:

456.143684211 seconds

564.3 m

Explanation:

s = Distance

v = Velocity

Time is given by

$t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{780}{0.9}\\\Rightarrow t=866.67\ s$

$t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{780}{1.9}\\\Rightarrow t=410.526315789\ s$

Difference in time = 866.67-410.526315789 = 456.143684211 seconds

According to the question

$\dfrac{x}{0.9}-\dfrac{x}{1.9}=5.5\times 60\\\Rightarrow x(\dfrac{1}{0.9}-\dfrac{1}{1.9})=330\\\Rightarrow x=\dfrac{330}{\dfrac{1}{0.9}-\dfrac{1}{1.9}}\\\Rightarrow x=564.3\ m$

The students would have to walk 564.3 m

3 0

2 years ago

17.food that is both nutrient- and calorie-dense can be a good choice in what circumstance?

Arlecino [84]

Answer:

Explanation: you can choose B or C but i would choose C

6 0

2 years ago

What kind of charge does an object have if it has extra positive charges

Sever21 [200]

An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.

7 0

3 years ago

Aliun [14]

Answer:

the correct answer is c, they will accelerate away from each other at different speeds. the 80kg will go faster due to less mass

6 0

2 years ago

Which of the following describes resistance?

enot [183]

D is your answer hope this helps

8 0

3 years ago