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3 years ago

Aerobic exercise helps to

1 answer:

8 0

Build stamina. Aerobics exercises target your oxygen throughout the body, the longer the exercise, the more of the oxygen that will build up.

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A stargazer has an astronomical telescope with an objective whose focal length is 195 cm and an eyepiece whose focal length is 1

Colt1911 [192]

Answer:

The best angular magnification is

-375

Explanation:

Fe = Fo - L

From the question, (Fo) = 1.08 cm while (L) = 0.56cm

Thus, Fe = 1.08 - 0.56 = 0.52cm

Now, let's apply the angular magnification equation ;

M = - Di/Do

Where Di is the distance from the lens to the image and Do is the distance of the object to the lens.

In this question, Di is represented by f which is the distance from the lens to the image and it is f= 195cm

Also,Do is represented by Fe which is 0.52cm and it is the distance of the object to the lens.

Thus m = - f/fe = - 195/0.52 = - 375

6 0

4 years ago

Select the correct answer. Which healthy snack can provide protein after physical activity? A. an orange slice B. pretzels C. yo

STatiana [176]

Which healthy snack can provide protein after physical activity?

an orange

8 0

3 years ago

Read 2 more answers

The carpal bones in the hands are an example of __________.

Olenka [21]

The carpal bones in the hands are an example of __________.
Answer: gliding joints

A gliding joint means a freely moving joint in which the articulations allow only gliding motions

6 0

3 years ago

Read 2 more answers

An egg is thrown nearly vertically upward from a point near the cornice of a tall building. The egg just misses the cornice on t

diamong [38]

Answer:

1. 18.5m/s

2. 17.5 m

3. 0 at its highest point

4. Direction is downwards

Explanation:

1. This egg is thrown vertically from a height

Yo = 0. This egg then falls to the point y = -30.0 at t = 5seconds

Y-Yo = V0t - 1/2gt²

-30-0 = V0(5)-1/2(9.8)(5²)

-30 = 5v0 - 4.9x25

-30 = 5V0 - 122.5

-30+122.4 = 5v0

V0 = 92.5/5

= 18.5m/s

this is the initial speed of the egg

2. When the egg is at a maximum height it would have a velocity equal to 0

V² = V0² - 2*g*y

V = 0, V0 = 18.5, g = 9.8

0 = 18.5²-2x9.8*y

342.25-19.6y = 0

342.25 = 19.6y

Divide through by 19.6

Y = 342.25/19.6

Y = 17.5m

this value is how high it rises above starting point

The magnitude of velocity is = 0 at its highest point

This egg falls under gravity. Therefore the acceleration due to gravity has a constant magnitude and direction. Magnitude = 9.8m/s and it's direction is downwards.

5. Please check attachment for graph

6 0

3 years ago

if a ball is thrown with a velocity of 25 m/s at an angle of 37 degrees above the horizontal,evaluate the projectile for it's ho

agasfer [191]

Answer:100 mph

Explanation:

6 0

3 years ago