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skad [1K]
3 years ago
8

Kelsey the triathelete swims 1.5 km east, then bikes 40 km north, and then runs 10 km west. Which choice gives the

Physics
1 answer:
Fittoniya [83]3 years ago
3 0

Answer:

Hey,. its a simple question. hope you learn from the solution. check attached picture

Explanation:

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The force of gravity between two objects follows an----- square law with regard to the distance between them what word completes
skelet666 [1.2K]

Answer:

Inverse

Explanation:

The force of gravity between two objects follows an <u>inverse</u> square law with regard to the distance between them.

<em>The inverse square law refers to any law that stipulates that a particular quantity varies inversely to the square of the distance to its source and according to the law of universal gravitation, the gravitational force of attraction between two objects is </em><em>inversely proportional to the square of the distance separating the two objects. </em>

Hence, the law of universal gravitation obeys the inverse square law.

8 0
3 years ago
A 20-volt relay has a coil resistance of 200 ohms. How much current does it draw? (I=0.1A)
TEA [102]

Answer:

Explanation:

a) According to ohm's law

V = IR

V is the supply voltage

R is the resistance

I is the current

Given Resistance = 200ohms

Voltage = 20V

I = V/R

I = 20/200

I = 0.1Amperes

b) Using the ohm's law formula

V= IR

Where voltage = 12volts

Current I = 3A

Resistance R = V/I

R = 12/3

R = 4ohms

c) Power generated by the battery is expressed as P = IV

I = P/V

Given Power = 2Watts

V = 1.5volts

I = 2/1.5

I = 1.33A

d) similarly, power = current I × voltage V

V = P/I

Given P = 90watts

I = 4.5A

V = 90/4.5

V = 20volts

e) Given power = 1.5kW = 1500watts

Voltage = 300volts

I = P/V

I = 1500/300

I = 5A

8 0
3 years ago
If a total of 1250 offspring were obtained from your cross, determine the number of offspring that you would expect to obtain th
irakobra [83]

Answer:

106 single crossover events

Explanation:

Total number of offspring = 1250

<u>Determine the number of offspring that would be expected </u>

( Rf between the genes vg and Pr ) * ( Total number of progeny )

  =   0.125 * 1250 ≈ 156 ( value for single and double crossovers )

next :

( value of the Rf of double crossovers ) * ( Total number of progeny )

= (0.322 * 0.125) = 0.04025  * 1250 = 50

Hence the number of offspring expected to obtain/represent a single crossover event between pr and vg

=  156 - 50 =  106

3 0
3 years ago
Which two fields of study do the principles of biomechanics come from? A. science and technology B. physics and engineering C. b
kati45 [8]

Answer:

B. physics and engineering

Explanation:

Biomechanics is the study of mechanical laws and living organisms. Hence, it comprises of the interrelationships between physics and engineering.

8 0
3 years ago
To Which of the following represents the relative order of wavelengths from least
Alex787 [66]

Answer:

A) ultraviolet light ---> violet light ----> red light-----> infrared light

Explanation:

We know that the electromagnetic spectrum with the wavelength from least to greatest is (also refer attachment)

  • gamma ray
  • X- rays
  • Ultra-violet
  • Visible            

                  Violet

                  Indigo

                  Blue

                  Green

                  Yellow

                   Orange

                   Red

  • Infra-red
  • Microwave
  • Radio wave

Hence the relative order of wavelengths from least to greatest in the electromagnetic spectrum is

    A) ultraviolet light ---> violet light ----> red light-----> infrared light

5 0
4 years ago
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