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
Tema [17]
3 years ago
15

A car increases its speed at a constant rate of 1.5 m/s2 as it rounds a curve of radius 200 m. The magnitude of the total accele

ration is 2.5 m/s2 . What is the car’s speed at this instant?

Engineering
1 answer:
vladimir2022 [97]3 years ago
7 0

Answer:

The car's instant speed is 20m/s

Explanation:

a = at + an

The above equation is a vector equation

a is the resultant acceleration

at   is the tangent acceleration

an  is the normal acceleration

See the attached diagram for solution

<h2 />

You might be interested in
A light bulb is switched on and within a few minutes its temperature becomes constant. Is it at equilibrium or steady state.
EleoNora [17]

Answer:

The temperature attains equilibrium with the surroundings.  

Explanation:

When the light bulb is lighted we know that it's temperature will go on increasing as the filament of the bulb has to  constantly dissipates energy during the time in which it is on. Now this energy is dissipated as heat as we know it, this heat energy is absorbed by the material of the bulb which is usually made up of glass, increasing it's temperature. Now we know that any object with temperature above absolute zero has to dissipate energy in form of radiations.

Thus we conclude that the bulb absorbs as well as dissipates it's absorbed thermal energy. we know that this rate is dependent on the temperature of the bulb thus it the temperature of the bulb does not change we can infer that an equilibrium has been reached in the above 2 processes i.e the rate of energy absorption equals the rate of energy dissipation.

Steady state is the condition when the condition does not change with time no matter whatever the surrounding conditions are.

6 0
3 years ago
If block A of the pulley system is moving downward at 6 ft&gt;s while block C is moving down at 18 ft&gt;s, determine the relati
kramer

Answer:

Explanation:

The detailed steps and appropriate calculation with analysis is as shown in the attachment.

3 0
3 years ago
What type of engineer works to create a practical and safe energy source?
Fittoniya [83]
Why did you put this on here when you know the answer lol
4 0
3 years ago
A resistance of 30 ohms is placed in a circuit with a 90 volt battery. What current flows in the circuit?
blagie [28]

Answer:

3A

Explanation:

Using Ohms law U=I×R solve for I by I=U/R

4 0
3 years ago
A lake has a carrying capacity of 10,000 fish. At the current level of fishing, 2,000 fish per year are taken with the catch uni
arlik [135]

Answer:

The population size would be p' = 5000

The yield would be    MaxYield = 2082 \ fishes \ per \ year

Explanation:

So in this problem we are going to be examining the application of a  population dynamics a fishing pond and stock fishing and objective would be to obtain the maximum sustainable yield and and the population of the fish at the obtained maximum sustainable yield,  so basically we would be applying an engineering solution to fishing

 

    So the current  yield which is mathematically represented as

                               \frac{dN}{dt} =   \frac{2000}{1 \ year }

 Where dN is the change in the number of fish

            and dt is the change in time

So in order to obtain the solution we need to obtain the  rate of growth

    For this we would be making use of the growth rate equation which is

                                      r = \frac{[\frac{dN}{dt}] }{N[1-\frac{N}{K} ]}

  Where N is the population of the fish which is given as 4,000 fishes

          and  K is the carrying capacity which is given as 10,000 fishes

             r is the growth rate

        Substituting these values into the equation

                              r = \frac{[\frac{2000}{year}] }{4000[1-\frac{4000}{10,000} ]}  =0.833

The maximum sustainable yield would be dependent on the growth rate an the carrying capacity and this mathematically represented as

                      Max Yield  = \frac{rK}{4} = \frac{(10,000)(0.833)}{4} = 2082 \ fishes \ per \ year

So since the maximum sustainable yield is 2082 then the the population need to be higher than 4,000 so in order to ensure a that this maximum yield the population size denoted by p' would be

                          p' = \frac{K}{2}  = \frac{10,000}{2}  = 5000\ fishes          

7 0
4 years ago
Read 2 more answers
Other questions:
  • a 120 volt,13 watts fluorescent light bulb is operated from 6pm until 10pm every day the cost per kilo watt hour is $0.07. what
    11·1 answer
  • suppose a wheel with a 15 inch diameter is used to turn a water valve stem with a radius of .95 inches. What is the Mechanical a
    15·1 answer
  • an existing highway-railway at-grade crossing is being redesigned as grade separated to improve traffic operations. The railway
    8·1 answer
  • You are in charge of ordering the concrete for a basement wall concrete pour. The wall forms are all set up and ready. The wall
    7·1 answer
  • How much heat (Btu) is prod uced by a 150-W light bulb that is on for 20-hours?
    14·1 answer
  • A closed system of mass 10 kg undergoes a process during which there is energy transfer by work from the system of 0.147 kJ per
    9·2 answers
  • A frequenter of a pub had observed that the new barman poured in average 0.47 liters of beer into the glass with a standard devi
    14·1 answer
  • Any help is appreciated &lt;3
    14·1 answer
  • REVVIVE ME MY MOM WALKED IN MY ROOM AND SCARED THE BAJESUS OUTTA ME
    5·2 answers
  • Which of the following is NOT one of the 3 technology bets we have made?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!