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
aleksandrvk [35]
3 years ago
13

A runner traveling with an initial velocity of 1.1 m/s accelerates at a constant rate of 0.8 m/s2fora time of 2.0 s.(a).What is

his velocity at the end of this time
Physics
1 answer:
pychu [463]3 years ago
7 0

Answer:

The final velocity of the runner at the end of the given time is 2.7 m/s.

Explanation:

Given;

initial velocity of the runner, u = 1.1 m/s

constant acceleration, a = 0.8 m/s²

time of motion, t = 2.0 s

The velocity of the runner at the end of the given time is calculate as;

v = u + at

where;

v is the final velocity of the runner at the end of the given time;

v = 1.1 + (0.8)(2)

v = 2.7 m/s

Therefore, the final velocity of the runner at the end of the given time is 2.7 m/s.

You might be interested in
What do you mean by kinetic energy and potential energy ?
Verizon [17]

  • Kinetic Energy of an object is the measure of the work an object can do by virtue of its motions..

  • Formula - KE = 1/2 mv^2

  • Where KE is the kinetic energy, m is the body’s mass, and v is the body’s velocity.

  • Potential energy is the stored energy in any object or system by virtue of its position or arrangement of parts..

  • Formula - W = mgh

Where,

. m is the mass in kilograms

. g is the acceleration due to gravity

. h is the height in meters

Hope it helpz~ uh..

4 0
2 years ago
Where does every piece of matter begin?
Margarita [4]
Every piece of matter begins “Out of this world”
6 0
3 years ago
The nuclear fuel distribution in a nuclear reactor is chosen so that when in operation the wall temperature of the reactor is a
cestrela7 [59]

Answer:

Explanation:

We Often solve the the integral neutron transport equation using the collision probability (CP) method which usually requires flat flux (FF) approach. In this research, it has been carried out in the cylindrical nuclear fuel cell with the spatial of mesh with quadratic flux approach. This simply means that the neutron flux at any region of the nuclear fuel cell is forced to follow the pattern of a quadratic function.

Furthermore The mechanism may be referred to as the process of non-flat flux (NFF) approach. The parameters that calculated in this study are the k-eff and the distribution of neutron flux. The result shows that all parameters are in accordance with the result of SRAC.

8 0
4 years ago
Based on the simple blackbody radiation model described in class, answer the following question. The planets Mars and Venus have
Lera25 [3.4K]

Answer:

The extent of greenhouse effect on mars is G_m =  87 K  

Explanation:

From the question we are told that

     The albedo value of Mars is  A_1  = 0.15

      The albedo value of Mars is  A_2  = 0.15

       The surface temperature of Mars is  T_1 = 220 K

        The surface temperature of Venus is  T_2 = 700 K

          The distance of Mars from the sun is d_m = 2.28*10^8 \ km = 2.28*10^8* 1000 = 2.28*10^{11} \  m

          The distance of Venus from sun is  d_v = 1.08 *10^{8} \ km = 1.08 *10^{8} * 1000 =  1.08 *10^{11} \ m

       The radius of the sun is R = 7*10^{8} \ m

        The energy flux is   E = 6.28 * 10^{7} W/m^2

The solar constant for Mars is mathematically represented as

 

          T = [\frac{E R^2 (1- A_1)}{\sigma d_m} ]

Where \sigma is the Stefan's constant with a value  \sigma = 5.6*10^{-8} \ Wm^{-2} K^{-4}

So substituting values

         T = \frac{6.28 *10^{7} * (7*10^8)^2 * (1-0.15)}{(5.67 *10^{-8}) * (2.28 *10^{11})^2)}

          T = 307K

So the greenhouse effect on Mars is  

           G_m =  T -  T_1

           G_m =  307 - 220

          G_m =  87 K

   

3 0
4 years ago
Ethan moves a 100 kg barrel up a 50 meter ramp. The amount of work Ethan has completed is
Natasha2012 [34]

Answer: i think he's done 50% of work

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Help with Physical Science! I have to do this discussion on potential and kinetic energy. The example of the problem is a 4 poun
    6·1 answer
  • Give an example of forces adding together
    15·1 answer
  • The six statements below represent Newton's three laws of motion and Kepler's three laws of planetary motion. Match each stateme
    8·1 answer
  • What is the best hypothesis to use for this investigation
    13·1 answer
  • A car is moving with a constant velocity around a circular path. If the radius of the circular path is 48.2 m and the centripeta
    6·2 answers
  • An older-model car accelerates from 0 to speed v in a time interval of Δt. A newer, more powerful sports car accelerates from 0
    11·1 answer
  • A system releases 150 kJ of heat while 10 kJ of work is done on the system by
    11·1 answer
  • Is the answer for h correct
    12·1 answer
  • In order for work to be done a___<br> must be exerted on an object causing it to___
    6·1 answer
  • The inner cylinder of a long, cylindrical capacitor has radius r and linear charge density +λ. It is surrounded by a coaxial cyl
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!