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NISA [10]
3 years ago
6

Find the ratio of average speed of a scooter moving at 30m/min and a car moving at 27km/hr

Physics
1 answer:
Pie3 years ago
7 0

30 m/min = 0.5 m/s (divide 30 by 60 s)

27 km/hr = 7.5 m/s (divide 27 by 3.6)

And then do the rest

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What substance is the genetic material of living things?
Alik [6]
I believe it's DNA.
Here're some sentences to explain:

Genetic material, also known as deoxyribonucleic acid<span> (</span>DNA<span>) and </span>Ribonucleic acid<span> (</span>RNA<span>), plays a fundamental role in the composition of living organisms.</span>
3 0
3 years ago
3. What is the potential energy of a 8 Newton book sitting on a shelf that is 12 meters high?​
Svetradugi [14.3K]

Answer:

P = 96 J

Explanation:

Given that,

Weight of the book, W = mg = 8 N

It is placed at a height of 12 m

We need to find the potential energy of the book. The potential energy of an object is given by the formula as follows :

E = mgh

mg = Weight

E=8\ N\times 12\ m\\E=96\ J

So, the potential energy of the book is 96 J.

8 0
4 years ago
1. Spring force is proportional to stretch distance, F=kd. Do you expect doubling the stretch distance double the force?
Solnce55 [7]

Answer:

Yes

Explanation:

The spring force is given as:

          F  = kd

F is the spring force

K is the spring constant

d is the magnitude of the stretch

 Since k is a constant, therefore, doubling the stretch distance will double the force.

Both stretch distance and force applied can be said to be directly proportional to one another.

3 0
3 years ago
a college student exerts 100N of force to lift his laundry basket the weighs 75N. at what rate is the basket accelerated upwards
sleet_krkn [62]
You can use the formula A=F/M, the rate that it is being accelerated upward is 3.3, so about 3.

The mass of the basket = weight/acceleration due to gravity. (75/10=7.5 kg)

100 (upward force from girl) minus 75 (downward force from basket) is 25.
So 25=7.5a, which becomes 25/7.5, which equals 3.33 kg x m/s.

And when rounded, the momentum is about 3, (or 3 p).

Hope this helps!
4 0
4 years ago
What force does the gravitational attraction of earth exert on a 12.8kg object, such as a toolbox loaded with tools
Hatshy [7]

Answer:

16

Explanation:

5 0
3 years ago
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