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3 years ago

Help asap physics homework, i'll give brainliest

Physics

2 answers:

Georgia [21]3 years ago

7 0

Answer:

$a= 0.2 m/s^2\\s = 20m\\t = 2 s$

Explanation:

gievn

two forces are given

$f_{1} = 2000 N \\f_{2} = 1800 N\\F_{net} = 2000 -1800 = 200N$

A) (a) What is the acceleration of the 1000-kg boat?

$f_{net} = ma\\a = \frac{f_{net}}{m}$

$a = \frac{200}{1000}\\a= 0.2 m/s^2$

B) If it starts from rest, how far will it move in 10.0 s?

using kinematic equation

$s = ut +\frac{1}{2}at^2\\ u = 0 \ m/s\\\\S = \frac{1}{2} at^2 \\s = \frac{1}{2} \times 0.2 \times (10)^2\\s = 10 m$

(c) What will its velocity be at the end of this time?

$v= u +at \\u = 0 m/s \\v = 0.2\times 10\\v = 2 m/s$

Bess [88]3 years ago

5 0

Answer:bippity boppity yee

Explanation:

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Answer:

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2 years ago

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3 years ago

14. The design for a rotating spacecraft below consists of two rings. The outer ring with a radius of 30 m holds the living quar

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Answer:

$T= 11.0003$ s

Explanation:

From the question we are told that

The outer ring with a radius of 30 m

inner Gravity Approximately 9.80 m/s'

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Considering the outer ring,

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2 years ago

An alternating source drives a series RLC circuit with an emf amplitude of 6.34 V, at a phase angle of +32.6°. When the potentia

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2 years ago

An electron in the n = 7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. what is the value

Dimas [21]

Answer:

$n_f=2$

Explanation:

It is given that,

Initially, the electron is in n = 7 energy level. When it relaxes to a lower energy level, emitting light of 397 nm. We need to find the value of n for the level to which the electron relaxed. It can be calculate using the formula as :

$\dfrac{1}{\lambda}=R(\dfrac{1}{n_f^2}-\dfrac{1}{n_i^2})$