Can somebody please help?

Physics

1 answer:

DedPeter [7]2 years ago

7 0

Answer:

Im not sure

Explanation:

I don't take physics cuz im in 9th grade. so. idk but I will find out and come back with an answer.

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Talia is on a road trip with some friends. In the first 2 hours, they travel 100 miles. Then they hit traffic and go only 30 mil

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Since Speed, V = Distance/Time
Average speed = Total Distance/Total Time

From the given data, Total Distance = 100 + 30 + 75 miles
and Total Time = 2 + 1 + 1 hours

Average Speed = 205/4
Average Speed = 51.25 mph ( or 51mph to the nearest whole number)

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2 years ago

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What is the atomic number of an element whose atoms each 47 protons, 60 neutrons, and 47 electrons?

The correct answer is number 47 or Ag (Silver).

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The answer is "Calorimeter"

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A player passes a basketball to another player who catches it at the same level from which ot was thrown. The initial speed of t

34kurt

(a) The initial direction of the ball is horizontal.

(b) The time of flight of the ball is 0.65 s.

<h3>Initial direction of ball</h3>

The initial direction of the ball is horizontal since the player catches the ball at the same level which implies that the speed of the of the ball was constant through out the motion.

<h3>Time of flight of the ball</h3>

The time of flight of the ball is calculated using the following kinematic equation.

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Learn more about time of flight here: brainly.com/question/4441382

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2 years ago

The volume V of a right circular cylinder of radius r and height h is V=πr2h. (a) How is dVdt related to drdt if h is constant a

Nikolay [14]

Answer:

(a) $\frac{dV}{dt}= 2\pi r h \frac{dr}{dt}$

(b) $\frac{dV}{dt}= \pi r^2 \frac{dh}{dt}$

(c) $\frac{dV}{dt} = \pi r^2\frac{dh}{dt}+2\pi r h\frac{dr}{dt}$

Explanation:

Differentiating Rules:

$\frac{dx^n}{dx}= nx^{n-1}$
$\frac{dx}{dx}=1$
$\frac{d}{dx}(mn)= m\frac{dn}{dx}+n\frac{dm}{dx}$ [ m and n are the function of x]
$\frac{d}{dx}(cn)=c \frac{dn}{dx}$ [ here c is constant and n is function of x]