2 years ago

Power can be defined as

Physics

2 answers:

Zepler [3.9K]2 years ago

8 0

Answer:

the correct answer is B how much work can be done in a given time

Explanation:

maria [59]2 years ago

4 0

I think it’s D sorry If I’m wrong

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C. a small charged particle.

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An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at 12.8 m/s2 . At t1 the rocket e

Simora [160]

Answer:4.39 s

Explanation:

Given

initial velocity $u=0$

acceleration $a=12.8 m/s^2$

velocity acquired by sled in $t_1$ time

$v=0+at$

$v=12.8t_1$

distance traveled by sled in $t_1 s$

$v^2-u^2=2as$

$(12.8t_1)^2-0=2\times 12.8\times s_1$

$s_1=6.4\cdot t_1^2$

distance traveled in $t_2$ time with velocity $v=12.8t_1$

$s_2=v\times t_2$

$s_2=12.8\times t_1\times t_2$

$s_2=12.8\cdot t_1\cdot t_2$

$s_1+s_2=5.37\times 10^3$

$6.4t_1^2+12.8t_1t_2=5370$ ----1

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we get

$6.4t_1^2-1250.56t_1+5370=0$

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3 years ago

How can you decrease the amount of input force of a wheel and axle?

nasty-shy [4]

Explanation:

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