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3 years ago

How can people reconcile technology with environmental preservation?

1 answer:

5 0

1. Developing renewable energy technology

- Efficient energy storage and smarter grids .
- renewable and rechargeable batteries and fuel cell

2. Saving endangered wildlife

-smart collars for endangered species and reducing human - animal conflict
-Gene sequencing for detecting and researching on deadly animal diseases.

3. Adopting a smarter lifestyle

- smart homes that promote energy saving and green - living .
- electric cars which are three times more conventional vehicles .

Hope this helps :)

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The spring constant, k, for a 22cm spring is 50N/m. A force is used to stretch the spring and when it is measured again it is 32

lutik1710 [3]

Answer:

Explanation:

Given parameters:

Original length = 22cm

Spring constant, K = 50N/m

New length = 32cm

Unknown

Force applied = ?

Solution:

The force applied on a spring can be derived using the expression below;

Force = KE

k is the spring constant

E is the extension

extension = new length - original length

extension = 32cm - 22cm = 10cm

convert the extension from cm to m;

100cm = 1m;

10cm will give 0.1m

So;

Force = 50N/m x 0.1m = 5N

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4 years ago

A stunt cyclist rides on the interior of a cylinder 13 m in radius. The coefficient of static friction between the tires and the

ZanzabumX [31]

Answer:

$v=13.1m/s$

Explanation:

From the question we are told that:

Radius r=13

Coefficient of static friction \mu=0.67

Given the Centripetal concept

Generally the equation for Velocity v is mathematically given by

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The value of the minimum speed (in m/s) for the cyclist to perform the stunt is Given as

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3 years ago

As a baseball is being caught, its speed goes from 43 to 0 m/s in about 0.003 s. Its mass is 0.145 kg. (Take the direction the b

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The question is incomplete, these are the missing parts of the question.

b) What is the baseball's acceleration in g's? (Indicate the direction with the sign of your answer.)

(b) What is the size of the force acting on it?

Answer:

a) -14333.3ms-2

b) -1462.58g

c) 2078N

Explanation:

The acceleration (deceleration) is easily found from from the information provided. Then the acceleration is obtained in terms of g as shown in the solution attached. The force is obtained from F=ma as shown in the image attached. Note the acceleration is negative because the ball was coming to rest. (The ball was caught).

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3 years ago

A student is hammering a nail into a board. Where should he hold the hammer and why?

MaRussiya [10]

Answer:

At the end of the handle farthest from the head of the hammer.

Explanation:

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3 years ago

How can people reconcile technology with environmental preservation?​

How can people reconcile technology with environmental preservation?