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
harkovskaia [24]
3 years ago
7

A bicycle is traveling at 14 miles per hour. How many feet will it cover in 55 seconds? Round your answer to the nearest tenth o

f a foot?
Chemistry
1 answer:
True [87]3 years ago
8 0

Answer:  1129.3 feet

Explanation:  

(14 miles/hr)*(5280 ft/mile)*(3600 sec/hr) = 20.53 ft/sec

(20.53 ft/sec)*(55 sec) = 1129.3 feet/55 seconds

You might be interested in
Anyone can help me in science assignment
olya-2409 [2.1K]

Answer:

okay I will help you

Explanation:

okay

6 0
3 years ago
Read 2 more answers
The conversion of 37 ˚C to K
77julia77 [94]

Answer:

310.15

Explanation:

c + 273.15 = k

37+ 273.15 = 310.15

8 0
3 years ago
Read 2 more answers
A piston chamber filled with ideal gas is kept in a constant-temperature bath at 25.0°C. The piston expands from 25.0 mL to 75.0
larisa [96]

Answer : The work done by the system is, 2.2722 J

Explanation :

The expression used for work done in reversible isothermal expansion will be,

w=nRT\ln (\frac{V_2}{V_1})

where,

w = work done = ?

n = number of moles of gas  = 0.00100 mole

R = gas constant = 8.314 J/mole K

T = temperature of gas  = 25^oC=273+25=298K

V_1 = initial volume of gas  = 25 mL

V_2 = final volume of gas  = 75 mL

Now put all the given values in the above formula, we get:

w=0.00100mole\times 8.314J/moleK\times 298K\times \ln (\frac{75}{25})

w=2.722J

Therefore, the work done by the system is, 2.2722 J

8 0
3 years ago
A 50% antifreeze solution is to be mixed with a 90% antifreeze solution to get 200 liters of a 80% solution. How many liters of
sergey [27]

Answer:

50 ltr 150 ltr

Explanation:

this problem can be solved by the mixture and allegation concept which can be clearly understand from bellow figure in which the concentration of solution 1 is 50% and concentration of solution 2 is 90% before mixing after mixing with help bellow concept the ratio of concentration become 10:30

ratio of solution 1 and solution 2 =10:30

                                                     =1:3

total mixture is 200 liters

part of solution 1=\frac{1}{4} ×200

                           =50 liters

part of solution 2=\frac{3}{4} ×200

                           =150 liters

6 0
3 years ago
An iron bar of mass 841 g cools from 84°C to 7°C. Calculate the heat released (in kilojoules) by the metal.
Oduvanchick [21]

Answer:

28.75211 kj

Explanation:

Given data:

Mass of iron bar = 841 g

Initial temperature = 84°C

Final temperature = 7°C

Heat released = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

specific heat capacity of iron is 0.444 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 7°C - 84°C

ΔT = -77°C

By putting values,

Q = 841 g × 0.444 j/g.°C × -77°C

Q = 28752.11 j

In Kj:

28752.11 j × 1 kJ / 1000 J

28.75211 kj

8 0
3 years ago
Other questions:
  • The large diversity of biological molecules depends on atoms of the element __________. this element can make stable bonds to it
    13·1 answer
  • How sig figs are in 28.0
    12·2 answers
  • A 1.00 L volume of HCl reacted completely with 2.00 L of 1.50 M Ca(OH)2 according to the balanced chemical equation below. 2HCl
    12·2 answers
  • How <br> do i do math im kinda slow so you might have to speak in spanish for me
    6·2 answers
  • How many oxygen atoms<br> in 4 Al 2 O 3
    13·1 answer
  • Calculate the molarity of a solution given the following information: 10g NaOH dissolved in 500 mL of solution.
    10·2 answers
  • PLEASE HELP!!!! Will give 60 points, and mark brainlest! Correct answer and explanation PLEASE!!!
    5·1 answer
  • Which is a nonmetal that becomes isoelectronic with argon<br> when it forms its most common ion?
    8·1 answer
  • Rocks are classified as sedimentary, metamorphic, or igneous on the basis of
    5·1 answer
  • A blank is formed or separated by physical processes.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!