1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
salantis [7]
3 years ago
14

Find the horizontal range of a projectile launched at 15 degrees to the horizontal with speed of 40m/s​

Chemistry
1 answer:
vfiekz [6]3 years ago
4 0

To Find :

The horizontal range of a projectile launched at 15 degrees to the horizontal with speed of 40 m/s​.

Solution :

The horizontal range of a projectile is given by :

R = \dfrac{u^2 sin 2\theta}{g} ( Here, g is acceleration due to gravity = 10 m/s² )

Putting all value in above equation :

R = \dfrac{40^2 \times sin (2 \times 15)}{10} \ m\\\\R = \dfrac{1600 \times 1}{2\times 10} \ m\\\\R = 80 \ m

Therefore, the horizontal range of projectile is 80 m.

You might be interested in
HELP PLEASE
Elza [17]

Answer:

C

Explanation:

5 0
3 years ago
The density of Diamond is 3.51 g/cm3, and the density of platinum is 21.43 g/cm3. If equal masses of diamond and platinum are tr
Reptile [31]

Answer:

Explanation:

Diamond has lesser density than platinum . So , if we take equal mass of both , the volume of mass of platinum will be far less .

The density of both diamond and platinum are  more than water so both of them will be drowned in water completely . They will not float . On being drowned , platinum will displace lesser volume of water because of its less volume . So volume change in case of platinum mass will be far less . The volume change for diamond will be more because of its bigger size.

4 0
3 years ago
Write the mechanism for the two steps of the hydroboration/oxidation reaction of indene
iVinArrow [24]
It's difficult to write it down, but I'll attach you a good example of hydroboration of indene. I hope you'll find it helpful.

5 0
3 years ago
Car manufacturers are developing engines that use H₂ as fuel. In Iceland, Sweden, and other parts of Scandinavia, where hydroele
weeeeeb [17]

If the coulombs are supplied at 1.44 V, then 4.766 × 10¹¹ joules are produced.

(a) The reaction is

2H₂O + 2e⁻ → H₂ + 2OH⁻

According to the reaction, 2 moles of electrons flow per mole of reaction,

(b) Given

T = 25°C

Change Celsius into Kelvin

T = 25°C

   = (25 + 273 ) K

   = 298 K

<h3>What is Ideal Gas Law ?</h3>

It is expressed as

PV = nRT

Hence ,

n = \frac{PV}{RT}

   = \frac{(12)(3.5.10^{6} )}{(0.082057)(298)}

   = 1.7176 ×10⁶ mole

Now, From the given reaction we can say that ,1 mole of H₂  is produced by 2 moles of electron

Hence, 1.7176 × 10⁶ mole of H₂ is produced by

= 2 × 1.7176 × 10⁶ moles of  electron

= 3.435 ×10⁶ moles of electron

We know that

charge = moles of electron × F

          =  (3.435 ×10⁶ × 96500) C

           =  3.31 × 10¹¹ C

(c) We know that,

Voltage = \frac{energy}{charge}  =  \frac{J}{C}

1.44 V = \frac{energy}{3.31 . 10^{11} }

Energy = 1.44 V × 3.31 × 10¹¹ C

            =  4.766 × 10¹¹ Joules

Thus from the above conclusion we can say that, coulombs are supplied at 1.44 V, then 4.766 × 10¹¹ joules are produced.

Learn more about Fuel Cell here : brainly.com/question/16612142

#SPJ4

Disclaimer : The question given was incomplete on portal, Here is the complete question.

Question : Car manufacturers are developing engines that use H₂ as fuel. In Iceland, Sweden, and other parts of Scandinavia countries, where hydroelectric plants produce inexpensive electric power, the H₂ can be made industrially by the electrolysis of water.

a) How many moles of electrons flow per mole of reaction ?

b) How many coulombs are needed to produce 3.53X10⁶ L of H₂ gas at   12.0 atm and 25°C.

c) If the coulombs are supplied at 1.44 V, how many joules are produced?

8 0
2 years ago
The highest tides of the year are neap tides. True False
just olya [345]
I think its false...
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which is the best acid to use in the preparation of a buffer with ph = 3.3?
    8·1 answer
  • Look this is a weird question to ask but am asking it anyways
    11·2 answers
  • How much zeros does 1 million have? and 2 days ago was my bday turning 13 <br> #LibraGurl
    6·1 answer
  • What is the volume of 3.5 moles of oxygen gas (O2) at standard temperature and pressure (STP)?
    12·2 answers
  • Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the popula
    12·2 answers
  • Which pair of elements has reactivity that is similar to chlorine, Cl? F. Fluorine and Argon G. Fluorine and Iodine H. Sulfur an
    10·1 answer
  • Please help me..!!!!!!!!!!!!!
    14·1 answer
  • Which chemical formula represents both an element and a molecule?
    12·1 answer
  • Read the sentences from the Newsela article, "First All-Female Spacewalk Will Take Place During Women's History Month. "
    14·1 answer
  • The number of neutrons in Aluminum is​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!