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andrew-mc [135]
1 year ago
5

If a car driving down the road doubles its speed what happens to its kinetic energy?

Physics
1 answer:
ivanzaharov [21]1 year ago
7 0

Answer:

Kinetic energy doubles

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A car accelerates from rest at -3.00m/s^2. What is the velocity at the end of 5.0s? What is the displacement after5.0s?
Andrew [12]

Speed = (acceleration) x (time)
Velocity = (speed) in (direction of the speed)

Speed = (-3 m/s²) x (5 s) = 15 m/s
Velocity =
             (15 m/s) in the direction opposite to the direction you call positive
.

Displacement = (distance between start-point and end-point)
                           in the direction from start-point to end-point.

Distance = (1/2) (acceleration) (time)²
Distance = (1/2) (3 m/s²) (5 s)²
                 = (1/2) (3 m/s²) (25 s²)  =  37.5 meters

Displacement =
                     37.5 meters in the direction opposite to the direction you call positive.

5 0
3 years ago
A real image can be obtained with:
In-s [12.5K]

Answer:

convex lens and a concave mirror

4 0
3 years ago
Read 2 more answers
At time t1 = 14 s, a car is located at 99, 80, 27 m and has velocity 4, 0, −3 m/s. At time t2 = 18 s, what is the position of th
Korvikt [17]

Answer:

115, 80, 15m

Explanation

t1 = 14s

t2 = 18s

change in time = 4s (18-14)

r(final) = r(initial) + (average velocity) x (change in time)

multiply the average velocity with the change in time

= (4, 0, -3) x 4 = 16, 0, -12

now we'll add this value to the initial position of the car

(99, 80, 27)m + (16, 0, -12)m = (115, 80, 15)m

8 0
3 years ago
Which of the following is a balanced chemical equation? MgF 2 + Li 2CO 3 ⟶ MgCO 3 + LiF 2Al + 6HCl ⟶ 3H 2 + AlCl 3 P 4 + 3O 2 ⟶
IRISSAK [1]

P₄ + 3O₂ ⟶ 2P₂O₃

Explanation:

A balanced equation is any equation that complies with the law of conservation of matter and mass.

The law of conservation of matter states that "in a chemical reaction, matter is neither created nor destroyed but simply rearranges. ".

  This suggests that the total number of atoms on both reactant and product sides must be the same in a balanced chemical equation. Also, the same atoms are found on both sides of a chemical equation with no additional or external species.

Now let us check if the equation is conserved:

                              P₄ + 3O₂ ⟶ 2P₂O₃

Atoms                      reactant                                product

P                                    4                                              4

O                                    6                                              6

We see that we have equal number of atoms on both sides. The equation is balanced.

learn more:

Balanced equation brainly.com/question/2612756

#learnwithBrainly

3 0
3 years ago
Explain,based on the motion of the gas particles,how the gas is causing the tubes to spin around as shown in the diagram above.
BabaBlast [244]
Because the gas weighs more than the tubes thus causing them to spin
7 0
3 years ago
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