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
Kisachek [45]
3 years ago
6

In a historical movie, two knights on horseback start from rest 97 m apart and ride directly toward each other to do battle. sir

george's acceleration has a magnitude of 0.16 m/s2, while sir alfred's has a magnitude of 0.30 m/s2. relative to sir george's starting point, where do the knights collide?
Physics
2 answers:
Alex777 [14]3 years ago
8 0
The situation is equivalent with one knight standing and the other moving with the sum of the two accelerations. Thus we can find the time from the equation
s=(a_1+a_2)t^2/2
t= \sqrt{2s/(a_1+a_2)} = \sqrt{2*97/(0.16+0.30)} =  20.536 s

Relative to Sir George stating point the distance where they encounter is
x=a_1t^2/2 =0.16*20.536^2/2 =33.74 (meters)


skad [1K]3 years ago
6 0
Let t = the time before the two knights collide.

The distance traveled by Sir George is
s₁ = (1/2)*(0.16 m/s²)*(t s)² = 0.08t² m

The distance traveled by Sir Alfred is
s₂ = (1/2*(0.30 m/s²)*(t s)² = 0.15t² m

The total distance should equal 97 m, therefore
0.08t² + 0.15t² = 97
0.23t² = 97
t = 20.5363 s

The distance that Sir George travels is
s₁ = 0.08*20.5363² = 33.74 m

Answer: 33.74 m

You might be interested in
I drop an egg from a certain distance and it takes 3.74 seconds to reach the ground. How high up was the egg?
OverLord2011 [107]

Answer:

68.5 meters

Explanation:

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 3.74 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0) (3.74) + ½ (9.8) (3.74)²

Δy = 68.5

The egg fell 68.5 meters.

7 0
4 years ago
Savion listed the steps involved when nuclear power plants generate electricity.
OverLord2011 [107]

Answer:

Reorder the steps so that step 4 appears before step 3

Explanation:

In a nuclear power plant, we have;

1) Nuclear reaction between the radio active species and the particles takes place to generate energy in the nucleus of atoms

2) The nuclear energy in the atom is converted into radiant energy, which is the energy found in light, and thermal (heat) energy

3) The produced radiant and thermal energy is released as heat and light

4) With the produced heat, steam is generated

5) The generated steam turns the steam turbines and produced mechanical energy

6) The produced mechanical energy is then converted into electrical energy in the electrical generator of the power plant

To correct Savion's error, Step 4) the light and heat should be released before step 3) the released heat can be used to generate steam, we therefore reorder the steps so that step 4 appears before step 3.

4 0
3 years ago
Read 2 more answers
What is the net force on the object in the picture? *<br> F = 30N<br> F<br> = 30N
My name is Ann [436]

Answer:0 N

Explanation:

Because they cancel each other out

7 0
4 years ago
Where was the novel from the word quark was taken
victus00 [196]
The word quark  <span>originally appeared in a single line of the the novel Finnegans Wake written by the Irish author </span>James Joyce<span> (1882–1941). The protagonist of the book is a publican named Humphrey Chimpden Earwicker who dreams that he is serving beer to a drunken seagull</span>
4 0
4 years ago
What is the common property of the elements pinctogen
AURORKA [14]

Answer:

The pnictogens consist of two non-metals, two metalloids, one metal, and one element with unknown chemical properties. All the elements in the group are solids at room temperature, except for nitrogen which is gaseous at room temperature.

5 0
3 years ago
Other questions:
  • A solenoid 2.5 cm in diameter and 30 cm in length has 4800 turns and carries a current of 2.0 A. Part A Calculate the magnetic f
    13·1 answer
  • Edgar is walking 0.5 M/S toward the back of a train that is traveling forward at 6.0 M/S west. What is Edgars velocity relative
    10·1 answer
  • Please help me!<br> Why is there more runoff in areas with high clay content?
    14·1 answer
  • The particles of a medium will settle the rest position after a mechanical wave passes
    13·2 answers
  • A girl weighing 600 N steps on a bathroom scale that contains a stiff spring. In equilibrium, the spring is compressed 1.0 cm un
    15·1 answer
  • Hay represents two-dimensional motion
    9·1 answer
  • What may thermal energy stores also be called?<br><br> PLEASE REALLY NEED THE HELP!
    7·1 answer
  • What is relative density?​
    13·1 answer
  • A baseball player hits a baseball with a bat. The mass of the ball is 0.25 kg. The ball accelerates at 200 m/s2
    10·1 answer
  • A boy pulls his 9.0 kg sled, applying a horizontal force of 14.0 N (rightward). The coefficient of friction between the snow and
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!