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zhuklara [117]
3 years ago
9

The following diagram represents a cart with an initial velocity of 1.0 m/s sliding along a frictionless track from point A:

Physics
2 answers:
FrozenT [24]3 years ago
6 0

the answer is point c

vichka [17]3 years ago
5 0

Answer:

The kinetic energy will be maximum at point C.

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While driving fast around a sharp right turn, you find yourself pressing against the car door. What is happening?
sergiy2304 [10]

Answer:

option C

Explanation:

The correct answer is option C

When the driver takes the sharp right turn the door will exert rightward pressure on the driver.

When the driver takes the sudden right turn the tendency of the body is to be in the straight line by the vehicle moves in the circular path so, as the vehicle turns it applies a rightward force on you.

The pushing of the door to you because of the centripetal force acting on the car due to sudden sharp turn.

3 0
2 years ago
For anti-ballistic missile system, the time of flight tf is determined by the initial speed v0 of the missile and the maximum ra
umka2103 [35]
Refer to the diagram shown below.

The following discussion assumes a simplistic analysis that ignores air resistance and variations in the terrain that the missile travels over.

Let the launch velocity be V₀ at an angle of θ relative to the horizontal.
The horizontal component of velocity is V₀ cosθ.
If the time of flight is t_{f}, then
r=V_{o} \, t_{f}
where r = the range of the missile.

Also, the time, t, when the missile is at ground level is given by
0=V_{o} sin\theta \, t- \frac{1}{2}gt^{2}
where g = acceleration due to gravity.

t = 0 corresponds to when the missile is launched. Therefore
t_{f} =  \frac{2V_{o}sin\theta}{g}

Therefore
r= \frac{2V_{o}^{2} sin\theta cos\theta}{g} = \frac{V_{o}^{2} sin(2\theta)}{g}

Typically, θ=45° to achieve maximum range, so that
r= \frac{V_{o}^{2}}{g}

This analysis is more applicable to a scud missile rather than a powered, guided missile.

Answer:
t_{f} =  \frac{r}{V_{o} cos\theta} \\\\ r= \frac{V_{o}^{2} sin(2\theta)}{g}
Usually, θ=45°

6 0
2 years ago
Tissues types<br> Please help
Harlamova29_29 [7]

Answer:

Explanation: what grade are u in?

6 0
2 years ago
How many electrons are in a 3 coulombs charge?
Dima020 [189]

One electron has a charge equivalent of 1.6x10^-19 coulomb. This is written as 1.6x10^-19 C = 1 electron so times that by 3 and there is your answer hope this helped

3 0
3 years ago
Read 2 more answers
A jet takes 7 hours to travel a distance of 5586mi against the wind. the return trip takes 6 hours with the wind. what is the ra
MakcuM [25]
Lets say speed of jet is u
& speed of wind is v
5586=(u-v)7--------1
5586=(u+v)6--------2
by 1,2 eqations,
we can get u&v
8 0
3 years ago
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