![anthonyjackson12aj](/avatars/29555.jpg)
anthonyjackson12aj
20.09.2019 •
Physics
Ahiker walks 50 miles 55 degrees south of west. how far did she walk west?
select one:
a. 28.7 miles
b. 40.9 miles
c. 35.4 miles
d. none of the above
Solved
Show answers
More tips
- S Style and Beauty How to Grow Hair Faster: Real Methods and Advice...
- F Family and Home How to Remove Fading from Clothes: Tips and Tricks...
- F Food and Cooking How to Make Polendwitsa at Home?...
- F Family and Home Parents or Environment: Who Has the Most Influence on a Child s Upbringing?...
- P Philosophy Unbelievable stories of encounters with otherworldly forces...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
Answers on questions: Physics
- P Physics How much work is done lifting a 5 kg ball from a height of 2 m to a height of 6 m? (Use 10 m/s2 for the acceleration of gravity.) A) 100 J B) 200 J C) 300 J D) 400...
- P Physics Question 3) A truck driver uses a citizen s band, or CB, radio to communicate with other truckers. If the broadcast frequency is 27.965 MHz, calculate the wavelength...
- P Physics Find the value of currents through each branch...
- P Physics The amount of force is measured in...
- P Physics Determine the mass of an object if it s moving at 5 m/s and has a momentum of 50 kg*m/s...
- S Social Studies Knowing your learning style may increase your gpa. true or false. user: how you like to study has nothing to do with your learning style....
- H History The birth of the black panters party signified which of the following about the civil rights movement...
- S Social Studies What type of things do the three miss out on by not having fathers how do they rectify the situation?...
- B Business Consumers should be concerned about high interest rates because high interest rates...
- S Social Studies Describe a picture you might draw to illustrate the idea of a shield law....
Ответ:
She walked 28.7 miles west ⇒ answer a
Explanation:
A hiker walks 50 miles 55 degrees south of west
That means the magnitude of her displacement is 50 miles
55 degree south of west means the angle between her displacement
direction and the west is 55°
We need to find how far she walk west
Her walk to west is the horizontal component of her displacement
West is adjacent to the angle of direction
If the magnitude of her displacement is R and its direction is Ф, then
→ The horizontal component = R cos Ф
→ R = 50 miles , Ф = 55°
→ The horizontal component = 50 cos(55) = 28.7 miles
The horizontal component represents her walk to the west
She walked 28.7 miles west
Ответ:
Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.
Explanation