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max2010maxim [7]
3 years ago
15

CAN SOMEONE PLEASE HELP ME!!? I NEED HELP PLEASE!!

Physics
1 answer:
Dmitry [639]3 years ago
3 0
The first one is decreases because there are less molecules in the air.
The second on would be the last option, August 29, because a new moon occurs every 29 days.
The answer for the last one would be A, I presume, because when air masses arrive at a destination, it becomes dry.
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A golf club exerts an average horizontal force of 1000 n on a 0.045 -kg golf ball that is initially at rest on the tee. the club
OlgaM077 [116]
The impulse (the variation of momentum of the ball) is related to the force applied by
\Delta p = F \Delta t
where \Delta p is the variation of momentum, F is the intensity of the force and \Delta t is the time of application of the force. 
Using F=1000 N and \Delta t = 1.8 ms=1.8 \cdot 10^{-3}s, we can find the variation of momentum:
\Delta p = (1000 N)(1.8 \cdot 10^{-3} s)=1.8 kg m/s

This \Delta p can be rewritten as
\Delta p = p_f - p_i = mv_f - mv_i
where p_f and p_i are the final and initial momentum. But the ball is initially at rest, so the initial momentum is zero, and
\Delta p = mv_f
from which we find the final velocity of the ball:
v_f =  \frac{\Delta p }{m}= \frac{1.8 kg m/s}{0.045 kg}=  40 m/s
8 0
3 years ago
The metal cover that seals the top of the cylinder
padilas [110]

Answer:a lid

Explanation bob pulled the lid off the jar of pickles

5 0
3 years ago
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I NEED SOMEONES HELP which statements are true regarding scientific evidence supporting the big bang theory
Elena-2011 [213]
The answer is A,B,C that apply. I believe this is the answer i hope this helps have a good day.
7 0
3 years ago
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Charge is distributed uniformly throughout the volume of an infinitely long solid Cylinder of radius R what is the electric fiel
Arada [10]

Solution :

Let us consider the Gaussian surface that is in the form of a cylinder having a radius of r and a length of A which is $\text{coaxial with the charged cylinder}$.

The charged enclosed by the cylinder is given by,

$q=\rho V$       (here, V = $\pi r^2l$  is the volume of the cylinder)

  $=\pi r^2lp$    

If $\rho$ is positive, then the electric field lines moves in the radial outward direction and is normal to Gaussian surface which is distributed uniformly.

Therefore, total flux through Gaussian cylinder is :

$\phi=EA_{cyl}$

   $=E(2\pi rl)$

Now using Gauss' law, we get

$2\pi \epsilon_0rlE = \pi r^2lp$

or $E=\frac{\rho r}{2 \epsilon_0}$

Therefore, the electric field is $E=\frac{\rho r}{2 \epsilon_0}$

Hence, option (d) is correct.

8 0
3 years ago
Find the mass of the car.
SpyIntel [72]

\huge\boxed{770.8\overline{3}\ \text{kg}}

We know that force equals mass times acceleration, so substitute in the known values and solve.

\begin{aligned}F&=ma\\1850&=m*2.4\\1850\div2.4&=m*2.4\div2.4\\\boxed{770.8\overline{3}}&=m\end{aligned}

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