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Ede4ka [16]
3 years ago
9

NEED HELP ASAP, WILL GIVE BRAINLIEST

Physics
1 answer:
alina1380 [7]3 years ago
7 0

Answer:

D-A radiator emitting warm air and drawing in cool air

Explanation:

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A person runs at a speed of 4 meters per second. How far will the person travel in 40 seconds?
NARA [144]
To determine the distance (d) traveled by a body given its speed (S) and the time (t). Use the equation,
 
                             S = d / t           ;          d = S x t

Substituting the known values to the equation,
 
                                      d = (4 m/s ) x (40 s) = 160 m

Thus, the person will travel 160 meters in 40 seconds. 
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Which of the following is a characteristic of a base?
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A. pH greater than 7

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Because a base has a pH scale of 8 to 14

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3 years ago
Martine also has an eraser.it has a mass of 3g,and a volume if 1cm3.what is its density
shtirl [24]

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3g/cm³

Explanation:

<em>Use the formula:</em>

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4 0
3 years ago
What type of telescope is shown in Figure 24-2
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Refractor, It's a refractor-esque telescope
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A ball that has a mass of 0.25 kg spins in a circle at the end of a 1.6 m rope. the ball moves at a tangential speed of 12.2 m/s
NARA [144]

The centripetal force acting on the ball will be 23.26 N.The direction of the centripetal force is always in the path of the center of the course.

<h3>What is centripetal force?</h3>

The force needed to move a body in a curved way is understood as centripetal force. This is a force that can be sensed from both the fixed frame and the spinning body's frame of concern.

The given data in the problem is;

m is the mass of A ball = 0.25 kg

r is the radius of circle= 1.6 m rope

v is the tangential speed = 12.2 m/s

\rm F_C is the centripetal force acting on the ball

The centripetal force is found as;

\rm F_C = \frac{mv^2}{r}  \\\\ F_C = \frac{0.25 \times (12.2)^2}{1.6}  \\\\ F_C=23.26\ N

Hence the centripetal force acting on the ball will be 23.26 N.

To learn more about the centripetal force refer to the link;

brainly.com/question/10596517

4 0
2 years ago
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