15 PTS! HELP! BRAINLIEST!

1 answer:

3 0

I cant do all but I can do number 4
When force moves ur leg u start skatin and when that happenes ur using a lot of force to move

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A truck is moving around a circular curve at a uniform velocity of 13 m/s. If the centripetal force on the truck is 3,300 N and

Paladinen [302]

Answer: Option B.

Since here the truck is moving on a circular track, it will experience centripetal force.

F(centripetal) = m × acc
or
$r = \frac{m v^{2}}{F}$

where r is the radius of the track.
m is the mass of truck
v is the speed of the truck.
Given: v = 13 m/s
m = 1,600 kg
F = 3300 Newton

To find = radius of track=?
$r = \frac{m v^{2} }{F}$
$r = \frac{1600*13*13}{3300}$
r = 81.94 m
Therefore, radius of track is 81.94 m

4 0

3 years ago

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What do we mean by principle of conservation?

leonid [27]

Answer:

Conservation principles tell us that some quantity, quality, or aspect remains constant through change.

Explanation:

7 0

3 years ago

WIL GIVE BRAINLISEST PLEASE HELP SPEED ACCELERATION GRAPHS LABEL THE GRAPHS PLEASEEeeee

Varvara68 [4.7K]

Answer:

Take the numbers and fill them in graph.

Plot time as X and speed as Y and afterward join then like a line graph.

4 0

2 years ago

HELP ASAP PLEEEEES

matrenka [14]

Explanation:

33. The 1.5kg owl is now soaring at 20m/s. What is the owl’s KE?

a. Step 1: Formula ½mv²

b. Step 2: Data m = 1.5 kg, v = 20 m/s

c. Step 3: Solve

KE = (1/2)(1.5)(20)² = 300 J

6 0

2 years ago

If a certain mass has its velocity changed from 6.00 m/s to 7.50 m/s when a 3.00 n force acts for 4.00 seconds, find the mass of

shutvik [7]

By definition we have that the force for time is equal to the product of the mass for the change in speed.
We have then that
F * (delta t) = m * (delta v)
Clearing the mass
m = (F * (delta t)) / (delta v)
Substituting the values
m = ((3.00) * (4.00)) / (7.50-6.00) = 8
answer
The mass of the moving object is 8Kg

3 0

3 years ago

Read 2 more answers