2 years ago

Please please help I'm stuck!!!

Physics

2 answers:

alex41 [277]2 years ago

8 0

I GOTCHU THE ANSWER IS 2.44s

Korvikt [17]2 years ago

6 0

Answer: iDc im in 3grade

Explanation:sorry

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A spacecraft is traveling in interplanetary space at a constant velocity. What is the estimated distance traveled by the spacecr

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What is the constant velocity?
We need that number in order to solve the problem
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3 years ago

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Calculate the acceleration of a 1400-kg car that stops from 39 km/h "on a dime" (on a distance of 1.7 cm).

Vinil7 [7]

Answer:

$a=-3449.67\frac{m}{s^2}$

Explanation:

The car is under an uniforly accelerated motion. So, we use the kinematic equations. We calculate the acceleration from the following equation:

$v_f^2=v_0^2+2ax$

We convert the initial speed to $\frac{m}{s}$

$39\frac{km}{h}*\frac{1000m}{1km}*\frac{1h}{3600s}=10.83\frac{m}{s}$

The car stops, so its final speed is zero. Solving for a:

$a=\frac{v_0^2}{2x}\\a=-\frac{(10.83\frac{m}{s})^2}{2(1.7*10^{-2}m)}\\a=-3449.67\frac{m}{s^2}$

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3 years ago

The sticky substances in cigarettes that coat the lining of the lungs are _____.

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Tar

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2 years ago

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Which planet is most likely to have acid rain? A. Mercury B. Venus C. Mars D. Uranus

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Its VENUS because the planet is basicily a hot planet

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2 years ago

A constant voltage of 12.00 V has been observed over a certain time interval across a 1.20 H inductor. The current through the i

kiruha [24]

Answer:

The time is 0.5 sec.

Explanation:

Given that,

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$\Delta A = 8.00-3.00= 5.00\ A$

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Using formula of inductor

$V=L\dfrac{\Delta A}{\Delta t}$

$\Delta t =\dfrac{L\Delta A}{V}$

Where, $\Delta A$ = change in current

V = voltage

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Put the value into the formula

$\Delta t=\dfrac{1.20\times5.00}{12.00}$

$\Delta t=0.5\ sec$

Hence, The time is 0.5 sec.

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2 years ago