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vlabodo [156]
3 years ago
12

How many significant digits are in the measurement 143,000

Physics
2 answers:
tangare [24]3 years ago
8 0
6 significant digits
user100 [1]3 years ago
6 0
6, 0 counts too, however if it's 0 in the beginning they don't count
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Which among the states of matter has definite shape and volume?why?​
Mashcka [7]

Answer:

Answer

Explanation:

A solid because each solids has various shapes and volume. scientist uses variety of tools such as, Cylinder,scaler, etc to differentiate the solids.

8 0
3 years ago
A scientist spends most of her time observing the motion of objects and how they behave. Which branch of science is she most lik
olga55 [171]
The scientist is likely to be studying kinematics.
Kinematics is the branch of science, specifically physics, which is concerned with the motion of objects without reference to the forces that induce this motion. An example of kinematics is studying the change in velocity of an object over time or the distance covered by an object in a specified amount of time.
7 0
3 years ago
An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector
Ghella [55]

Answer:

a = 5.05 x 10¹⁴ m/s²

Explanation:

Consider the motion along the horizontal direction

v_{x} = velocity along the horizontal direction = 3.0 x 10⁶ m/s

t = time of travel

X = horizontal distance traveled = 11 cm = 0.11 m

Time of travel can be given as

t = \frac{X}{v_{x}}

inserting the values

t = 0.11/(3.0 x 10⁶)

t = 3.67 x 10⁻⁸ sec

Consider the motion along the vertical direction

Y = vertical distance traveled = 34 cm = 0.34 m

a = acceleration = ?

t = time of travel  = 3.67 x 10⁻⁸ sec

v_{y} = initial velocity along the vertical direction = 0 m/s

Using the kinematics equation

Y = v_{y} t + (0.5) a t²

0.34 = (0) (3.67 x 10⁻⁸) + (0.5) a (3.67 x 10⁻⁸)²

a = 5.05 x 10¹⁴ m/s²

7 0
3 years ago
Resultant of a pair of 100 km/h velocity vectors that are at right angels to each other
nignag [31]

The resultant of the two vectors is 141 km/h.

Explanation:

When two vectors are at right angles to each other, their resultant can be calculated by using the Pythagorean's theorem:

R=\sqrt{A^2+B^2}

where

A is the magnitude of the first vector

B is the magnitude of the second vector

In this problem, we have two velocity vectors of magnitude

A = 100 km/h

B = 100 km/h

Substituting into the formula, we find their resultant:

R=\sqrt{100^2+100^2}=141.4 km/h

Learn more about vector addition here:

brainly.com/question/4945130

brainly.com/question/5892298

#LearnwithBrainly

5 0
3 years ago
NEED HELP ASAP
andriy [413]

Answer:

the battery, I think this answer

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3 years ago
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