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3 years ago

Which units can be used to measure length or distance? Check all that apply

Physics

2 answers:

aliina [53]3 years ago

8 0

Meters, Kilometers, and inches. i think i mean you should probably list all the choices if you want an exact answer

ankoles [38]3 years ago

4 0

On the list of choices that you provided, there are none that apply.

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Sam is observing the velocity of a car at different times. After three hours, the velocity of the car is 53 km/h. After six hour

Serhud [2]

For the answer to the question above, first find out the gradient.

m = rise/run 
=(y2-y1)/(x2-x1) 

the x's and y's are the points given: "After three hours, the velocity of the car is 53 km/h. After six hours, the velocity of the car is 62 km/h" 
(x1,y1) = (3,53) 
(x2,y2) = (6,62) 

sub values back into the equation 
m = (62-53)/(6-3) 
m = 9/3 
m = 3 

now we use a point-slope form to find the the standard form 
y-y1 = m(x-x1) 
where x1 and y1 are any set of point given 
y-53 = 3(x-3) 
y-53 = 3x - 9 
y = 3x - 9 + 53 
y = 3x + 44 

y is the velocity of the car, x is the time.
I hope this helps.

4 0

3 years ago

Yosemite falls, in california, has a total height of 73,900 cm. what is this height in meters?

Hunter-Best [27]

Yosemite falls has a total height of 73,900 cm it means it heights 739 meters

6 0

3 years ago

In introductory physics laboratories, a typical Cavendish balance for measuring the gravitational constant G uses lead spheres o

SVETLANKA909090 [29]

Answer:

$F = 7.7*10^{-10}N$

Explanation:

You need to be careful with units for this problem. The force will be:

$F =\frac{K*m1*m2}{d^2}$

$F=\frac{6.67259 * 10^{-11}*1.56*21.1*10^{-3}}{(5.34*10^{-2})^2}$

$F=7.7*10^{-10}N$

8 0

3 years ago

Plants may get yellow if they get less nitrogen.give reasons.

Vaselesa [24]

Explanation:

Nutrient deficiency causes yellowing of leaves. One of such nutrient is Nitrogen.

Leaves are green because of a pigment in them called chlorophyll.
The chlorophyll in leaves are used by plant to absorb light energy needed for photosynthesis.
Other wavelength of light is absorbed by the chlorophyll and the green color is reflected.
Nitrogen is an important nutrient that is needed to produce chlorophyll in plants which in turn helps the process of photosynthesis.

Learn more;

Photosynthesis brainly.com/question/2761166

#learnwithBrainly

5 0

4 years ago

A transformer supplies 60 watts of power to a device that is rated at 20 volts. The primary coil is connected to a 120-volt ac s

Nataly [62]

Answer:

I = 0.5 A

Explanation:

Given: P=60 Watts, Voltage supply V = 120 Volts (for primary coil)

Solution:

we have P = V I

⇒ I = P /V = 60 Watts / 120 Volts

I = 0.5 A

4 0

3 years ago