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Kipish [7]
2 years ago
11

NEED HELP!!!!

Physics
1 answer:
melamori03 [73]2 years ago
4 0

Answer:

The correct choice is D. Concentric exercise can be hard on joints, so she should be very careful.

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A horse runs 350 meters in 23 seconds. What was the average speed of the horse? Round your answer to a tenth ​
OLga [1]

Answer:

Horse/Speed

55 mph

rounded to the tenth?  either 60 or 50

but 350 would stay like that  i believe!

Explanation:

5 0
3 years ago
An old building is being demolished by swinging a heavy metal ball from a crane. Suppose that such a 115kg ball swings from a 20
Igoryamba

Explanation:

Below is an attachment containing the solution.

7 0
3 years ago
A moving rope (parallel to the slope) is used to pull skiers up the mountain. If the slope of the hill is 37" and friction is ne
Charra [1.4K]

Since rope is parallel to the inclined plane so here we can say that net force parallel to the person which is pulling upwards must counterbalance the component of weight of the person.

Now here we will do the components of the weight of the person

given that weight of the person = 500 N

now its components are

W_x = 500 cos37

W_y = 500 sin37

now here as we can say that one of the component is balanced here by the normal force perpendicular to plane

while the other component of the weight is balanced by the force applied on the rope

So here the force applied on the rope will be given as

F = W_y = 500 sin37

F = 300 N

so it apply 300 N force along the inclined plane

5 0
3 years ago
How are ice liquid water and water vapor different from each other?
olga_2 [115]
The molecules of ice stick together in the process of cohesion. They are tightly packed so there isn't much room to move. Liquid water is a looser hold. The molecules can go past one another, and they will take the shape of whatever container they occupy. Water vapor is loosely contained, and it will will fill whatever container it is kept in, and it will take its shape, too.
7 0
3 years ago
Read 2 more answers
How do power plants generate electricity?
GalinKa [24]

Answer:

Explanation:

electrons are a waste product of bacteria living around plant roots – plants discharge organic matter into the soil, which is broken down by bacteria. It is possible to harvest them using motonless electrodes and turn them into electricity, without affecting the plant’s growth in any way.

4 0
3 years ago
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