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
Aleksandr [31]
3 years ago
9

1. A supersonic jet moves with a constant velocity of 220 m/s north. A bicycle moves

Physics
1 answer:
daser333 [38]3 years ago
6 0

Answer:

The supersonic jet has a greater acceleration

You might be interested in
Billy drops a ball from a height of 1 m. The ball bounces back to a height of 0.8 m, then
Andreas93 [3]

Answer:

The displacement is  \Delta H =    -  1 \ m

The distance  is  D =  4 \  m

Explanation:

From  the question we are told that

    The height from which the ball is dropped is  h  =  1 \ m

    The height attained at  the first bounce is  h_1  = 0.8  \  m

    The height attained at  the second bounce is   h_2 = 0.5 \  m

    The height attained at  the third bounce is h_3 = 0.2 \  m

Note  : When calculating displacement we consider the direction of motion

Generally given that upward is positive  the total displacement of the ball is mathematically represented as

            \Delta H =  (0  -  h ) + ( h_1 - h_1 ) + (h_2 - h_2 )+ (h_3 - h_3)

Here the 0 show that there was no bounce back to the point where Billy released the ball  

           \Delta H =  (0  -  1 ) + ( 0.8- 0.8 ) + (0.5 - 0.5 )+ (0.2 - 0.2)

=>          \Delta H =    -  1 \ m

Generally the distance covered by the ball is mathematically represented as  

                D =  h +  2h_2 + 2h_3 + 2h_3

The 2 shows that the ball traveled the height two times

              D =  1 +  2* 0.8  + 2* 0.5 + 2* 0.2

=>           D =  4 \  m

     

5 0
3 years ago
What is the resistance of a 2 m long tungsten wire whose cross-sectional area of 0.15 mm2?​
nadya68 [22]

The resistance of a 2 m long tungsten wire whose cross-sectional area of 0.15 mm² will be 0.74 ohm.

<h3>What is resistance?</h3>

Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.

ρ is the resistivity of tungsten = 5.6×10⁻⁸ (ohm m)

The relation of resistance with length and thickness is given by ;

\rm R= \frac{\rho L}{A} \\\\ \rm R= \frac{5.6 \times 10^{-8}\times 2}{0.15 \times 10^{-6}} \\\\ R=0.74 \ ohm

Hence, the resistance of tungsten wire will be 0.74 ohm.

To learn more about the resistance, refer to the link;

brainly.com/question/20708652

#SPJ1

3 0
2 years ago
Which value would complete the last cell?
GREYUIT [131]

Answer:

4.0

Explanation:

The following data were obtained from the question:

Force (F) = 20 N

Mass (m) = 5 kg

Acceleration (a) =.?

Force is simply defined as the product of mass and acceleration. Mathematically, it is expressed as

Force (F) = mass (m) x acceleration (a)

F = ma

With the above formula, we can obtain th acceleration of the body as follow:

Force (F) = 20 N

Mass (m) = 5 kg

Acceleration (a) =.?

F = ma

20 = 5 x a

Divide both side by 5

a = 20/5

a = 4 m/s²

Therefore, the value that will complete the last cell in the question above is 4.

5 0
4 years ago
Plsssss HELLPPP ILL MARK BRAINLIESTTTTTT PROMISE
11111nata11111 [884]

Answer:

Nuclear Reaction

Explanation:

Technically fusion and fission should be included, but a nuclear reaction includes both fusion and fission, so it must be the answer.

6 0
4 years ago
Which of the following has a positive charge and a mass of one?
Dmitrij [34]

Answer:

the answer is protons b

Explanation:

brainliest if 1st one..

6 0
3 years ago
Other questions:
  • If an object has more electrons than protons, what eletrical charge would it carry
    11·1 answer
  • How are the outer planets different from the inner planets of our solar system?
    10·2 answers
  • → 7Ti2(SO4)3 Which number represents a coefficient? 2 3 4 7
    13·2 answers
  • The Milky Way is the name of the _______ where the Earth is located. A. orbit B. universe C. galaxy D. solar system
    15·1 answer
  • Two people, Micah and Lyra, with different near points are equally close to an object. Both inspect the object through the same
    9·1 answer
  • Find the magnitude of pressure in Pascal of 150N that acts normally on area. Of 0.25m2
    9·1 answer
  • Tissues types<br> Please help
    9·1 answer
  • A car travels east at a constant velocity. The net force on the car is:
    8·1 answer
  • Which cell structure is found in plant cells, but not in animal cells?
    9·2 answers
  • What is kinematics?<br>explain!!~​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!