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Agata [3.3K]
3 years ago
15

Jffkdjdjdjdkskkskskskskakskkdkdkskdk

Mathematics
1 answer:
Katena32 [7]3 years ago
6 0

Answer:

the anser is d

Step-by-step explanation:

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A 1.5 kilogram lab cart accelerated unitorily from rest to a speed of 2.0 meters per second in 0.50 second What is the magnitude
NISA [10]
Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) minus (speed at the beginning.

The cart's acceleration is

(0 - 2 m/s) / (0.3 sec)

= ( -2 / 0.3 ) (m/s²) = -(6 and 2/3) m/s² .

Newton's second law of motion says

Force = (mass) x (acceleration) .

For this cart: Force = (1.5 kg) x ( - 6-2/3 m/s²)

= ( - 1.5 x 20/3 ) (kg-m/s²)

= - 10 newtons .

The force is negative because it acts opposite to the direction
in which the cart is moving, it causes a negative acceleration,
and it eventually stops the cart.
3 0
3 years ago
Last week, Josh practiced a song 12 times. If he practiced the song 4 times on his own, how many times did he practice the song
sineoko [7]

Answer:

Hello, it seems my fellow Josh needs some help, so here we go. It's quite simple, the answer is 8.

Step-by-step explanation:

12 - 4 = 8

or 8 + 4 = 12.

So he practiced 8 times in public, or to others.

6 0
3 years ago
I really need Help!. I need this to pass my class
charle [14.2K]

Answer:

Don't have enough info to help sorry

Step-by-step explanation:

6 0
3 years ago
Order the numbers in the increasing order: 0, -1, -11, 6/5, 1.25
Rudiy27

Answer:

-11, -1, 0, 6/5, 1.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The copper content of 18-carat gold was measured by two methods for six different samples collected from a jewelry production pl
Schach [20]

Full question attached

Answer:

Paired t test

Explanation:

The paired sample t test is used to measure or compare the mean of two observations or samples by measuring each subject two times as is seen above with the gold measurement which would result in two sets or pair of samples in a statistical procedure. We observe from the question that we measure each gold with two methods and then compare result of the two methods in terms of their mean error using the paired t test.

6 0
3 years ago
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