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ivann1987 [24]
3 years ago
9

Activity log - Chest and Back Record your time and activity below and in your unit fitness log. If a particular category does no

t apply, leave it blank. Date: Warm-up: Cool-down: Type of Activity: (Cardiovascular, Muscular, or Flexibility) Description of Activity and Time: Intensity Level: (Moderate or Vigorous) Total Time:
Physics
2 answers:
ludmilkaskok [199]3 years ago
6 0

Answer:

Muscular and vigorous

Explanation:

Big gains only

sweet [91]3 years ago
5 0

Answer:Date: 08/21/21

Warm-up: 5 minutes

Cool-down: 1 minute

Type of Activity: Muscular

Description of Activity and Time: push up, and repetitions 10 minutes

Intensity Level: Moderate

Total Time:16 minutes

Explanation:

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schepotkina [342]

Answer:

Explanation:

Length if the bar is 1m=100cm

The tip of the bar serves as fulcrum

A force of 20N (upward) is applied at the tip of the other end. Then, the force is 100cm from the fulcrum

The crate lid is 2cm from the fulcrum, let the force (downward) acting on the crate be F.

Using moment

Sum of the moments of all forces about any point in the plane must be zero.

Let take moment about the fulcrum

100×20-F×2=0

2000-2F=0

2F=2000

Then, F=1000N

The force acting in the crate lid is 1000N

Option D is correct

7 0
3 years ago
When the temperature of matter decrease , the particles do what
Rom4ik [11]

Answer:

When the temperature decreases the particals start to slow down.

4 0
3 years ago
Help in physics please :(((​
Arlecino [84]

Answer:

I am sorry I can't draw graphical ok how to draw the graph where what is your position the displacement of time and work 7 kilometres east in 2 hours and what will happen to the time and 72 in 1 hour what is the displacement you after take the displacement formula that is total time taken divided by the distance travelled ok displacement and distance travelled is different about its terms ok

8 0
3 years ago
At a construction site, the site manager notices that a crane takes 20 seconds to lift a 500kg steel beam up to a height of 15 m
posledela
The work done is equal to the change in potential energy which is:
P.E = mgh
P.E = 500 x 9.81 x 15
P.E = 73,575 J

Power = work / time
Power = 73,575 / 20
Power = 3,700 Watts
5 0
3 years ago
A person swims to the other end of a 20m long pool and back. What is their displacement?
mafiozo [28]

Answer:

Zero

Explanation:

It is given that,

A person swims to the other end of a 20m long pool and back.

We need to find his displacement.

Displacement = shortest path covered

He reaches at the same position as from where he has started. It means the shortest path covered is equal to 0 i.e. his displacement is zero.

3 0
3 years ago
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