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dedylja [7]
3 years ago
14

A cyclist travels 60 km in 2 hours .What is his average speed?

Chemistry
1 answer:
zysi [14]3 years ago
3 0

Explanation:

Mike drives his car 60 km in 55minutes. What is its average speed in kilometers per hour ? A train travels 120 km in 2 hours and 30 .

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Which of the following flows is not driven by pressure differences?
AlekseyPX

Answer:

I think it is option (b) river

7 0
3 years ago
2) A track star ran 1500 meters. How many feet did they run?
horrorfan [7]

The number of feet the track star ran is 4921.26 feet

<h3>Conversion scale </h3>

We can convert meter to feet by using the following conversion scale:

0.3048 meter = 1 feet

<h3>How to cconvert 1500 meters to feet</h3>

The following data were obtained from the question:

  • Distance (in meter) = 1500 meter
  • Distance (in feet) =?

We can convert 1500 meter to feet as illustrated below:

0.3048 meter = 1 feet

Therefore,

1500 meter = (1500 meter × 1 feet) / 0.3048 meter

1500 meter = 4921.26 feet

Thus, 1500 meter is equivalent to 4921.26 feet

Learn more about conversion:

brainly.com/question/1560145

#SPJ1

5 0
2 years ago
AIDS is one disease caused by a virus infection. The virus attacks immune system cells known as T cells.
VLD [36.1K]

Answer:

yes,its true

Explanation:

I just want to say first off

the immune cell known as T cell also known as white blood cells

Since the first main attack from the bodies response against a virus is deploying T cells to attack

CD4 cells are the basic T cells and HIV virus which is AIDS will start to "Eat itself inside" Ofc not they will use protein spikes to form their way in

they start to create copies of themselves inside the T cell itself and creating a new protein called Env to form their ways in ofc

They are able to bypass CD4 cells is because its a basic cellular receptor for T cells making them really deadly

They now will start to attack other white cells and deploying more and more of their virus cells

7 0
3 years ago
1. Circle the following compounds that would be soluble in water. NaOH Fe2S¬ MgSO4 PbCl2 Ba(NO3)2 MgCO3
____ [38]
I think there are about four compounds that are listed above that are soluble in water. These are NaOH, MgSO4, MgCO3 and Ba(NO3)2. <span>In chemistry, solubility of a substance is a quantitative term that refers to the amount of substance that can dissolve in a given volume of a solvent.</span>
4 0
3 years ago
For the skeletal chemical equation BF3(g) + NaH(s) → B2H6(g) + NaF(s) what is the coefficient of B2H6 in the balanced equation?
KonstantinChe [14]

Answer:

Coefficient in front of the B_2H_6  in the balanced equation - 1

Explanation:

The unbalanced Chemical equation is shown below as:-

BF_3+NaH\rightarrow B_2H_6+NaF

On the left hand side,  

There are 1 boron atom and 3 fluorine atoms and 1 sodium and hydrogen atoms.

On the right hand side,  

There are 2 boron atoms and 6 hydrogen atoms and 1 sodium and fluorine atoms.

Thus,  

leftside, BF_3 must be multiplied by 2 to balance boron and right side, NaF must be multiplied by 6 to balance fluorine. Left side, NaH must be multiplied by 6 to balance sodium and hydrogen atoms.

Thus, the balanced reaction is:-

2BF_3+6NaH\rightarrow B_2H_6+6NaF

<u>Coefficient in front of the B_2H_6  in the balanced equation - 1</u>

6 0
3 years ago
Read 2 more answers
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