All categories

4 years ago

What’s the difference between red blood cells and white blood cells

Physics

2 answers:

Lerok [7]4 years ago

4 0

Red blood cells contain hermoglobin whiles white blood cells do not. Hermoglobin is what gives it its red color.

mixas84 [53]4 years ago

4 0

Red blood cells contain hermoglobin whiles white blood cells do not. Hermoglobin is what gives it its red color.

You might be interested in

The mechanical power output of an electric motor is 2.20 hp. The motor is connected to a 120 V source and is 89.0% efficient in

MatroZZZ [7]

Answer:

a) $i = 15.367\,A$ , b) $E = 25.226\,MJ$ , c) $C = 0.771\,USD$

Explanation:

a) Let assume that electric motor is single-phase and operates in DC-mode, so that mechanical power output is:

$\dot W = \eta \cdot i \cdot V$

The current delivered to the motor is:

$i = \frac{\dot W}{\eta \cdot V}$

$i = \frac{(2.20\,hp)\cdot \left(\frac{0.746\,kW}{1\,hp} \right)\cdot \left(\frac{1000\,W}{1\,kW} \right)}{(0.89)\cdot (120\,V)}$

$i = 15.367\,A$

b) The power delivered to the motor is:

$\dot W = i\cdot V$

$\dot W = (15.367\,A)\cdot (120\,V)$

$\dot W = 1844.04\,W$

The energy delivered to the motor during 3.80 hours of operation is:

$E = (1844.04\,W)\cdot (3.80\,h)\cdot \left(\frac{3600\,s}{1\,h}\right)\cdot \left(\frac{1\,MJ}{1000000\,J}\right)$

$E = 25.226\,MJ$

c) The cost to run the motor is:

$C = (0.110\,\frac{USD}{kWh} )\cdot (25.226\,MJ)\cdot \left(\frac{0.278\,kWh}{1\,MJ}\right)$

$C = 0.771\,USD$

3 0

3 years ago

Genes do not affect more than our physical characteristics<br> True<br> False

timurjin [86]

False

reason- they affect much more than physical appearance

8 0

3 years ago

A 300-n force acts on a 25-kg object. the acceleration of the object is?

Over [174]

To solve the answer use the equation: a = fnet / m

a = 300 N / 25 kg

300 N / 25 kg = 12m/s

The acceleration of the object is 12m/s

8 0

3 years ago

Read 2 more answers

A cube of gold weights1.89N when suspended in air from a spring scale. When suspended in molasses, it appears to weight 1.76 N.

Eddi Din [679]

smaller depending on friction and aiming of the gold cube

3 0

3 years ago

4. State in words how acceleration is calculated.

dimaraw [331]

You multiply force times friction

4 0

3 years ago