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
Sindrei [870]
2 years ago
6

Before the car launches, which objects have stored energy?

Physics
1 answer:
Sloan [31]2 years ago
3 0

Answer:

maybeeeeeeeee launcherrr im not sureee hehe

You might be interested in
A football kicked in front of a goal post at an angle of 45 degree to the ground just clear the top by of the post 3m high. Calc
Firlakuza [10]

Answer:

A. 10.84 m/s

B. 1.56 s

Explanation:

From the question given above, the following data were obtained:

Angle of projection (θ) = 45°

Maximum height (H) = 3 m

Acceleration due to gravity (g) = 9.8 m/s²

Velocity of projection (u) =?

Time (T) taken to hit the ground again =?

A. Determination of the velocity of projection.

Angle of projection (θ) = 45°

Maximum height (H) = 3 m

Acceleration due to gravity (g) = 9.8 m/s²

Velocity of projection (u) =?

H = u²Sine²θ / 2g

3 = u²(Sine 45)² / 2 × 9.8

3 = u²(0.7071)² / 19.6

Cross multiply

3 × 19.6 = u²(0.7071)²

58.8 = u²(0.7071)²

Divide both side by (0.7071)²

u² = 58.8 / (0.7071)²

u² = 117.60

Take the square root of both side

u = √117.60

u = 10.84 m/s

Therefore, the velocity of projection is 10.84 m/s.

B. Determination of the time taken to hit the ground again.

Angle of projection (θ) = 45°

Velocity of projection (u) = 10.84 m/s

Time (T) taken to hit the ground again =?

T = 2uSine θ /g

T = 2 × 10.84 × Sine 45 / 9.8

T = 21.68 × 0.7071 / 9.8

T = 1.56 s

Therefore, the time taken to hit the ground again is 1.56 s.

7 0
3 years ago
Suppose a ball is dropped from shoulder height, falls, makes a perfectly elastic collision with the floor, and rebounds to shoul
Bezzdna [24]

Answer:Same magnitude

Explanation:

When ball is dropped from shoulder height h then velocity at the bottom is given by

v_1=\sqrt{2gh}

if it makes elastic collision then it will acquire the same velocity and riser up to the same height

If m is the mass of ball then impulse imparted is given by

J=m(v_2-v_1)

J=2m\sqrt{2gh}

Thus impulse imparted by gravity and Floor will have same magnitude of impulse but direction will be opposite to each other.

7 0
3 years ago
A book rests on a table, exerting a downward force on the table. the reaction to this force is:
lapo4ka [179]
The upward force the table exerts on the ground!
Equal and opposite forces.
4 0
3 years ago
What are five examples that illustrate a machine or a person doing work on another?
valentina_108 [34]
I sort of understand but what does it mean by.... Another?
5 0
3 years ago
Which of these terms means an object's resistance to changing its motion?
Mila [183]

Answer:

Inertia

F=ma

Action, reaction

All of the above

A heavy object requires more force to push than a lighter object.

8 0
2 years ago
Other questions:
  • _______ or radioactive substance have a half life.
    6·1 answer
  • Surface tension ____. a. is the inward force which tends to minimize the surface area of a liquid b. may be increased by deterge
    11·1 answer
  • The line that is drawn perpendicular to the point at which a wave intersects a boundary is know as the
    6·1 answer
  • Do electric fields point towards or away from positive charges?
    14·1 answer
  • What repels radiant energy
    14·1 answer
  • Question 5
    9·1 answer
  • The maximum permissible workday dose for occupational exposure to radiation is 18 mrem. A 54-kg laboratory technician absorbs 2.
    13·1 answer
  • The frequency of a simple pendulum that makes 120 complete oscillations in 3 minutes is:
    12·1 answer
  • One strategy in a snowball fight is to throw
    6·1 answer
  • PLEASE HELP I WILL GIVE 50 PTS AND GIVE BRAINLIEST
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!