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Svetlanka [38]
4 years ago
14

Two runners start simultaneously from the same point on a circular 200-m track and run in the same direction. One runs at a cons

tant speed of 6.20 m/s and the other runs at a constant speed of 5.50 m/s. g
Physics
1 answer:
topjm [15]4 years ago
4 0

Answer

given,

speed of the fastest runner = 6.2 m/s

speed of the slower runner = 5.5 m/s

Assume, we need to calculate  time when both the runner meet for the first time.

distance cover by the fast runner = distance cover by the slow runner

  6.2 t = 5.5 t + 200

   0.7 t = 200

      t = 285.71 s

time after which both the runner meet.

Distance they covered after starting

D = s x t

D = 6.2 x 285.71

D = 1771.43 m.

now, calculating the second time both will meet.

they will take double time to meet again

 t' = 2 x 285.71

t '= 571.42 s

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When a speeding truck hits a stationary car, the car is deformed and heat is generated. What can you say about the kinetic energ
guapka [62]
I can say that the kinetic energy after the collision is less than it was before the collision.  I can say this with confidence because you've said that some energy was used to deform the car, plus there was energy lost from the system in the form of heat.
4 0
3 years ago
The galaxy M33 is the third largest galaxy in the Local Group after M31 and the Milky Way. The galaxy M33 has a moderate-sized c
azamat

Galaxy M33 is classified as a Triangulum normal spiral.

The galaxy M33 is the third largest galaxy in the Local Group after M31 and the Milky Way. The galaxy M33 has a moderate-sized central bulge and two spiral arms that emerge directly out of the bulge and wrap around in rather poorly defined arcs with many cross-connections between the arms.

This spiral galaxy is located in the triangle shaped constellation earning a pet name as triangular galaxy. This galaxy star formation rate is ten times higher than average found in Andromeda galaxy.  It has relatively bright apparent. This galaxy was given by Charles Messier and he classified it as Triangulum normal spiral.

Learn more about galaxy here:

    brainly.com/question/13074009

         #SPJ4

8 0
2 years ago
find the gravitational force this shell exerts on a 1.60 kg point mass placed at the distance 5.01 m from the center of the shel
RideAnS [48]

The gravitational force of the shell exerts is 4.25m x 10¯¹² N.

We need to know about gravitational force to solve this problem. The gravitational force is the force caused by two masses of objects. The magnitude of gravitational force can be determined as

F = G.m1.m2 / R²

where F is the gravitational force, G is the gravitational constant (6.674 × 10¯¹¹ Nm²/kg²), m1 and m2 are the mass of the object and R is the radius.

From the question above, we know that

m1 = 1.6 kg

m2 = m

R = 5.01 m

By substituting the following parameters, we get

F = G.m1.m2 / R²

F = 6.674 × 10¯¹¹  . 1.6 . m / 5.01²

F = 4.25m x 10¯¹² N

where m is the mass of the shell

For more on gravitational force at: brainly.com/question/19050897

#SPJ4

7 0
1 year ago
HELP!!! I will 5 star if its helpful :(
victus00 [196]

Answer:

Net Force Formula: F1+F2+F3...+FN

*(MAKE SURE YOU MAKE NOTE OF THE NEGATIVE FORCES AND SUBTRACT THEM!)*

Explanation:

Top left: 17N+25N+25N-42N= 25N

Top right: 65N+200N-65N-150N-200N= 150N

Bottom left: 189N+123N+284N-96N-188N-312N= 0N

Bottom right: 34N+77N-12N-34N= 65N

I hope this helps! :))

5 0
3 years ago
A 500 kilogram roller coaster starts from rest at the top of an 80 meter hill.What was its speed at the bottom at the hill?
GarryVolchara [31]

m = mass of the roller coaster = 500 kg

h = height of the hill = 80 m

v = speed of the roller coaster at the bottom of the hill = ?

using conservation of energy

kinetic energy at the bottom of the hill = potential energy at the top of hill

(0.5) m v² = m g h

(0.5) v² = g h

inserting the values

(0.5) v² = (9.8) (80)

v = 39.6 m/s

hence the speed at the bottom comes out to be 39.6 m/s

3 0
3 years ago
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