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arlik [135]
3 years ago
10

Elizabeth had heart surgery to repair the pacemaker of her heart. Into which structure did the surgeon need access?

Physics
1 answer:
blsea [12.9K]3 years ago
4 0

Answer:

SA Node is where the surgeon needed access

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If a car moves with a uniform speed of 2m/s in a circle of radius 0.4m, what is its angular speed?
REY [17]

Answer:

The car's angular speed is \frac{rad}{s}.

Explanation:

Angular velocity is usually measured with \frac{radians}{sec}, so I'm going to use that to answer your question.

The relationship between tangential velocity and angular velocity (ω)  is given by:

V = \omega R

Using the values from the question, we get:

2 \frac{m}{s} = \omega (0.4m)

\omega = 5 \frac{rad}{s}

Therefore, the car's angular speed is 5 \frac{rad}{s}.

Hope this helped!

3 0
3 years ago
A dog has a mass of69kg and an acceleration of 2m/s/s. What is the force of the dog?
Anna35 [415]

Answer:

<h2>138 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 69 × 2

We have the final answer as

<h3>138 N</h3>

Hope this helps you

7 0
3 years ago
Rita has two small containers, one holding a liquid and one holding a gas. Rita transfers the substances to two larger container
SVETLANKA909090 [29]

Sample Response: liquids flow freely, they take the shape of the container they are in, but have a definite volume. Like liquids, the shape of a gas changes with the container. This is because the atoms in a gas move rapidly and freely to fill any available space. Unlike liquids, the volume of a gas changes depending on the container it is in.

3 0
4 years ago
Read 2 more answers
A forklift raises a crate weighing 8.35 × 102 newtons to a height of 6.0 meters. What amount of work does the forklift do?
Vinil7 [7]
Answer:

<span>5010J</span>

Explanation:

Work is force times distance, or

<span>W=F⋅d</span>.

Substitute in values from the question to get

<span>W=8.35⋅<span>102</span>N⋅6m=50.1⋅<span>102</span>Nm=5010<span>J</span></span>

6 0
3 years ago
Read 2 more answers
a 2.5-kg object is dropped from a height of 1000 m. what is the force of air resistance on the object when it reaches terminal v
Sergio [31]

Answer:

24.5 N

Explanation:

The falling object experiences its weight acting downwards and the air resistance in the opposite direction.

The air resistance increases with velocity so there may come a point, depending on the shape of the object and if there is sufficient height, where these 2 forces are equal.

Since the object has no net forces acting on it it will, according to Newton, no longer accelerate but continue with a constant velocity.

This is called Terminal Velocity.

So:

Air resistance = weight

R = m g

R = 2.5 × 9.8  = 24.5N

3 0
4 years ago
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