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3 years ago

How is 0.00069 written in scienitfic notation?

Physics

1 answer:

victus00 [196]3 years ago

8 0

You need to move the decimal point between the six and nine. 6.9 X 10^-4

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Students are building basic circuits in their physics class and they are asked to measure the current running through their circ

storchak [24]

Answer: option D

Explanation: students will need to make the ammeter a component built into their circuit so that electron flow through it to measure the current, by doing so, they have to connect the ammeter in series with the resistor hence making the same value of current flow through both the ammeter and the resistor.

The value of current on the ammeter is the value of current in the resistor which is the value of current flowing in the circuit as a whole.

6 0

4 years ago

Read 2 more answers

A quarterback takes the ball from the line of scrimmage, runs backward for 12.1 yds, then runs sideways parallel to the line of

Over [174]

Answer:

The answer is 35.45 yds

Explanation:

You have to picture this to be able to understand it better (see attachment).

Start at the origin which is when the quarterback (QB) takes the ball. He runs backwards 12.1 yards, runs sideways for 19.8 yards (it doesn´t matter if he runs right or left), then he throws the ball forward 41.5 yards. If you look at the attachment, you can see I drew the path that the football followed. And then connected the dots from the origin and finish. The distance between those two points is the magnitude of the resultant displacement.

In order to calculate it, all you need to do is use the Pythagoream theorem, which says that the square of the hypotenuse equals the sum of the squares of the legs a and b of the triangle rectangle.

$R^{2} = a^{2} + b^{2}$ then solve for R
$R = \sqrt{a^{2}+b^{2} }$

In this case, you know the length of leg a to be 19.8 yards which how much it moves sideways. And then, to get the length of leg b, all you need to do is substract how much it moved backwards from the 41.5yards forward displacement. This results in b leg being 29.4 yards long.

Now you have a triangle with:

a = 19.8 yards
b = 29.4 yards

Substituting this numbers in the equation:

$R = \sqrt{19.8^{2}+29.4^{2} }$
R = 35.45 yards

3 0

3 years ago

I need help with this problem

frosja888 [35]

Answer:

v = dr/dt = 7t x + 0 y + (- 4) z

a = dv/dt = 7 x + 0 y + 0 z

t = 0:

v = (-4) z

a = 7 x

Explanation:

v = dr/dt = 7t x + 0 y + (- 4) z

a = dv/dt = 7 x + 0 y + 0 z

t = 0:

v = (-4) z

a = 7 x

6 0

2 years ago

A car is idling at a stoplight. When the light turns green, the car takes 12 seconds to accelerate to 18.7 m/s. What is the aver

Sonbull [250]

Answer:

1.6 m/s^2

Explanation:

3 0

4 years ago

If you take a bar magnet with both n & s poles and cut it in half, you get

creativ13 [48]

I think you get half of the magnetic field and that means half the power of the magnetic field.

7 0

3 years ago