All categories

3 years ago

Which step is usually NOT performed when finding a pulse?

Physics

2 answers:

melamori03 [73]3 years ago

7 0

Answer:

Answer is B. counting the number of heartbeats for 6 seconds. :)

Explanation:

To quote the text, "You must make a fist with one hand before using the index and middle fingers of your other hand to press down on the artery to find it. Once you have found the artery, locate your pulse and count how many heartbeats you can feel for 10 seconds. Multiply the number by 6 to get the approximate number of heartbeats in 60 seconds, or bpm."

NNADVOKAT [17]3 years ago

4 0

The laST ONE I THINK

You might be interested in

Aconstant current of 3 Afor 4 hours is required to charge an automotive battery. If the terminal voltage is V, where t is in hou

kirza4 [7]

Answer:

(a) 43.2 kC

(b) 0.012V kWh

(c) 0.108V cents

Explanation:

Given:

i = current flow = 3 A
t = time interval for which the current flow = $4\ h = 4\times 3600\ s = 14400\ s$
V = terminal voltage of the battery
R = rate of energy = 9 cents/kWh

Assume:

Q = charge transported as a result of charging
E = energy expended
C = cost of charging

Part (a):

We know that the charge flow rate is the electric current flow through a wire.

$\therefore i = \dfrac{Q}{t}\\\Rightarrow Q =it\\\Rightarrow Q = 3\times 14400\\\Rightarrow Q = 43200\ C\\\Rightarrow Q = 43.200\ kC\\$

Hence, 43.2 kC of charge is transported as a result of charging.

Part (b):

We know the electrical energy dissipated due to current flow across a voltage drop for a time interval is given by:

$E = Vit\\\Rightarrow E = V\times 3\times 4\\\Rightarrow E = 12V\ Wh\\\Rightarrow E = 0.012V\ kWh\\$

Hence, 0.012V kWh is expended in charging the battery.

Part (c):

We know that the energy cost is equal to the product of energy expended and the rate of energy.

$\therefore \textrm{Cost}=\textrm{Energy}\times \textrm{Rate}\\\Rightarrow C = ER\\\Rightarrow C = 0.012V\times 9\\\Rightarrow C =0.108V\ cents$

Hence, 0.108V cents is the charging cost of the battery.

4 0

3 years ago

Which of these is NOT needed to sustain life on a planet? *

Vadim26 [7]

I think it’s proximity of the sun

7 0

3 years ago

A person is making homemade ice cream. She exerts a force of magnitude 28 N on the free end of the crank handle on the ice-cream

Alecsey [184]

Answer:

$P = 43.2 Watt$

Explanation:

As we know that the handle is moving with uniform speed

so we can find the speed as

$v = \frac{2\pi R}{T}$

now we have

$R = 0.27 m$

T = 1.1s

now we have

$v = \frac{2\pi (0.27)}{1.1}$

$v = 1.54 m/s$

now we know that power is given as

$P = F.v$

F = 28 N

$P = 28(1.54)$

$P = 43.2 Watt$

8 0

3 years ago

An eagle is flying horizontally 16.4 meters above a lake at a speed of 9.3 m/s, carrying a small pumpkin in its talons. The pump

Dima020 [189]

Answer:

The horizontal distance the pumpkin will travel after it slips from the eagle is 17.02 m

Explanation:

Given;

height above the ground, h = 16.4 m

speed of the eagle, v = 9.3 m/s

The time it will take the pumpkin to fall at the given height is calculated as;

$t = \sqrt{\frac{2h}{g} }\\\\t = \sqrt{\frac{2*16.4}{9.8} }\\\\t = 1.83 \ s$

The horizontal distance traveled at this time is given by;

x = vt

x = (9.3)(1.83)

x = 17.02 m

Therefore, the horizontal distance the pumpkin will travel after it slips from the eagle is 17.02 m

4 0

2 years ago

Plz help due in 10 minutes will give brianlest to best answer

Ahat [919]

Answer:

Muscular Force = Uses when walking

The Force of wind = Force used to turn a windmill

Force of Gravity = Used to drag thing to the centre of the earth

Steam = Type of force used to operate machines

Work = Amount of force Times the distance moved

Foot - Pound = Moving one pound one foot

Newton meter = moving one newton one meter

Explanation:

4 0

3 years ago

Read 2 more answers