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
SVETLANKA909090 [29]
3 years ago
13

An object moving 20 m/s

Physics
1 answer:
yan [13]3 years ago
7 0

Answer:

<u>We are given:</u>

initial velocity (u) = 20m/s

acceleration (a) = 4 m/s²

time (t) = 8 seconds

displacement (s) = s m

<u />

<u>Solving for Displacement:</u>

From the seconds equation of motion:

s = ut + 1/2 * at²

replacing the variables

s = 20(8) + 1/2 * (4)*(8)*(8)

s = 160 + 128

s = 288 m

You might be interested in
Which of the following describes how the mechanical advantage of a simple machine affects the amount of force needed for work? A
Simora [160]

Answer:

The answer is a

Explanation:

5 0
3 years ago
O que levou a filosofia pensar em artes?
vredina [299]

Answer:

idk

Explanation:

4 0
2 years ago
Chapter 16, Problem 63. A person is standing in a room at 18 ◦C. The exposed surface area and skin temperature of the person are
Juliette [100K]

Answer:Q=248.011 W

Explanation:

Given

Temperature of Room T_{\infty }=18^{\circ}\approx 291 K

Area of Person A=1.7 m^2

Temperature of skin T=32^{\circ}\approx 305 K

Heat transfer coefficient h=5 W/m^2.k

Emissivity of the skin and clothes \epsilon =0.9

\Delta T=32-18=14^{\circ}

Total rate of heat transfer=heat Transfer due to Radiation +heat transfer through convection

Heat transfer due radiation Q_1=\epsilon \sigma A(T^4-T_{\infty }^4 )

where \sigma =stefan-boltzman\ constant

Q_1=0.9\times 5.687\times 10^{-8}\times 1.7\times (305^4-291^4)

Q_1=129.01 W

Heat Transfer due to convection is given by

Q_2=hA(\Delta T)

Q_2=5\times 1.7\times 14=119 W

Q=Q_1+Q_2

Q=129.01+119=248.011 W

7 0
3 years ago
The circuit has a 3 volt EMF and two ohm resistors. How much power in watts does this circuit draw? A) 4.5 , B) 24, C) 1.13 D) 2
dlinn [17]

Answer:

P = 4.5 watts

Explanation:

Given that,

EMF of the circuit, E = 3 volt

The resistance  of the resistors, R = 2 ohms

We need to find the power of this circuit. The relation between power, emf and resistance is given by the formula as follows :

P=\dfrac{V^2}{R}

Substitute all the values,

P=\dfrac{3^2}{2}\\\\P=4.5\ W

So, the power of this circuit is equal to 4.5 watts.

5 0
3 years ago
What is normal for a spring that obeys hook's law ?
Bezzdna [24]
A spring that obeys Hooke's law has a spring force constant of 272 N/m. This spring is then stretched by 28.6 cm
7 0
3 years ago
Read 2 more answers
Other questions:
  • A girl on the beach sees 8 waves pass in 4 s. If the wavelength of each
    12·2 answers
  • What is the atomic number of an Neon atom with 10 protons and 11 neutrons in its nucleus, &amp; 10 Electrons in orbitals around
    10·2 answers
  • By what factor must we increase the amplitude of vibration of an object at the end of a spring in order to double its maximum sp
    9·1 answer
  • Tyler throws a baseball, which accidentally breaks a window in his neighbor's house. Which of the following represents the actio
    12·2 answers
  • What is one advantage of doing a feild experiment instead of a lobortory expirament
    6·1 answer
  • a net force of 100 newtons is applied to a wagon for 5 seconds. This causes the wagon to undergo a change in momentum of
    9·1 answer
  • A crate of books rests on a level floor. To move it along the floor at a constant velocity, why do you exert less force if you p
    8·1 answer
  • HURRY IM TIMED!!!!Anya knows the velocity of an object. What else does she need to know in order to find the object’s momentum?
    8·2 answers
  • Can anyone say this is from which book And can you solve these question
    11·1 answer
  • I’m sorry, but the person you are calling has a voice mailbox that has not been set up yet.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!