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topjm [15]
3 years ago
13

Define the following:

Physics
1 answer:
Andrej [43]3 years ago
6 0

Answer:

Variable- not consistent or having a fixed pattern; liable to change

Data- facts and statistics collected together for reference or analysis

Control- a group or individual used as a standard of comparison for checking the results of a survey or experiment

Technology- the application of scientific knowledge for practical purposes, especially in industry

Hypothesis- a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation

Physical Science- the sciences concerned with the study of inanimate natural objects, including physics, chemistry, astronomy, and related subjects

Experiments- a scientific procedure to make a discovery, test a hypothesis, or demonstrate a known fact

Explanation:

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If a person gets eight hours of sleep every night but still feels exhausted in the morning he or she may suffer from
tatuchka [14]
I believe the and is B
4 0
3 years ago
An electric hoist does 56,447 J of work in raising 115 kg load. How high (in meters) was the load lifted?
Ugo [173]

\\ \rm\rightarrowtail W=mgh

\\ \rm\rightarrowtail 56447=1150h

\\ \rm\rightarrowtail h=56447/11150

\\ \rm\rightarrowtail h=49.1m

8 0
3 years ago
The actual mass of a sheet of copy paper is 4.5 g. What must be the actual mass of a 1 cm² plece of copy paper?
Allushta [10]

The actual mass of a 1 cm² piece of copy paper is determined as 0.0074 g.

<h3>Area of the sheet of paper in square centimeters</h3>

Area = Length x Width

Area = (11 x 2.54 cm) x (8.5 x 2.54 cm)

Area = 603.22 cm²

<h3>Actual mass of the sheet of paper</h3>

Mass = area density/area

Mass = (4.5 gcm²)/(603.22 cm²)

Mass = 0.0074 g

The complete question is below:

A sheet of 8.5 inch by 11inch paper has a mass of 4.50 grams one square centimeter , 1cm2 of that sheet of paper will have a mass closets to ____grams ( (hint use 1inch = 2.54 centimeters and area = length times)

Learn more about mass here: brainly.com/question/1762479

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3 0
2 years ago
Please help,it is urgent!)
Romashka [77]

Answer:

answer is 18.58 because

5 0
3 years ago
Read 2 more answers
A 25-cm rod moves at 5. 0 m/s in a plane perpendicular to a magnetic field of strength 0. 25 t. the rod, velocity vector, and ma
Bad White [126]

Length L = 25 cm = 0.25 m,  B = 600 G =  0.06 T ( 1G = 0.0001 T)

emf= 10 V

Solution:

emf = vBL

v= emf / BL

5 = emf/ (0.25 T× 0.25 m)

emf = 0.3125 v

Magnetic field

The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field. A force perpendicular to the charge's own velocity and the magnetic field acts on it when the charge is travelling through a magnetic field.

To learn more about the magnetic field refer here:

brainly.com/question/23096032

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5 0
2 years ago
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