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
Marrrta [24]
3 years ago
15

A small 23 kilogram canoe is floating downriver at a speed of 3 m/s. What is the canoe's kinetic energy?

Chemistry
1 answer:
Ivanshal [37]3 years ago
3 0

Kinetic energy is defined as the energy the object possess due to its motion. It is the work that accelerates a given body from rest to motion.

Given:

The mass of the canoe is 23 kilogram

The velocity of the canoe is 3 m/s

The kinetic energy can be given by the formula:

KE = \frac{1}{2}.m.v^{2}

Substituting the given values in the kinetic energy equation

KE =\frac{1}{2}.(23kg).(3m/s)^{2}

KE= 11.5 * 9 kg.m^2/s^2

k = 103.5 J

Therefore the kinetic energy of the canoe is 103.5 Joules.

You might be interested in
Consider the generic reaction: 2 A(g) + B(g) → 2 C(g). If a flask initially contains 1.0 atm of A and 1.0 atm of B, what is the
irina1246 [14]

Answer:

b. 1.5 atm.

Explanation:

Hello!

In this case, since the undergoing chemical reaction suggests that two moles of A react with one moles of B to produce two moles of C, for the final pressure we can write:

P=P_A+P_B+P_C

Now, if we introduce the stoichiometry, and the change in the pressure x we can write:

P=1.0-2x+1.0-x+2x

Nevertheless, since the reaction goes to completion, all A is consumed and there is a leftover of B, and that consumed A is:

x=\frac{1.0atm}{2}=0.5atm

Thus, the final pressure is:

P=1.0-2(0.5)+1.0-(0.5)+2(0.5)\\\\P=1.5atm

Therefore the answer is b. 1.5 atm.

Best regards!

3 0
2 years ago
I am a gas. I am in the noble gas family and row 1. I have only 2 valence electrons I glow red-orange when in an electric field.
belka [17]
The element is Helium

Goodluck!
7 0
2 years ago
Read 2 more answers
a 10.99g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition (define proportions), how many g
leonid [27]

Given :

A 10.99 g sample of NaBr contains 22.34% Na by mass.

To Find :

How many grams of sodium does a 9.77g sample of sodium bromine contain.

Solution :

By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.

Therefore , percentage of Na by mass in NaBr will be same for every amount .

Percentage of Na in 9.77 g NaBr is 22.34 % too .

Gram of Na = 9.77\times \dfrac{22.34}{100}=2.18\ g .

Hence , this is the required solution .

7 0
3 years ago
What keeps the planets in orbit in our solar system
son4ous [18]
Gravitational pull coming from the sun
7 0
1 year ago
What is the oxidation number of chlorine
sergiy2304 [10]
The oxidation number of chlorine in the Cl-<span> ion is -1.</span>
3 0
2 years ago
Other questions:
  • Determine the molar mass of gas in a container at -50.0 C and 6 atm pressure with a density of 14.5 g/L.
    9·1 answer
  • A horizontal tube carrying hot water has a surface temperature of 355.4 K and an outside diameter
    12·1 answer
  • How many significant figures<br> are in this number?<br> 107.051
    8·2 answers
  • What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?
    10·2 answers
  • Why is it impossible for a gas to take the shape of its container? A. Molecules in a gas are very far apart. B. Molecules in a g
    9·1 answer
  • What 2 factors determine whether a collision between reactants is effective
    7·1 answer
  • The diagram below represents a portion of a cell membrane. The arrow indicates that the cell membrane is carrying out the proces
    10·1 answer
  • Classify the following as either an element, compound, homogeneous mixture or
    10·1 answer
  • Q+ ( poistive ion ) is an ion of element Q.<br> What has the highest value in the ion?
    9·2 answers
  • If you are driving, and a fly or a bug that can fly comes in your car, and you are driving 80+ miles. Is that bug flying at 80+
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!