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ohaa [14]
3 years ago
7

An unbalanced force of 15 N is applied to a 13 kg mass. What is the acceleration of the mass?

Physics
1 answer:
Alex787 [66]3 years ago
4 0

Answer:

1.15m/s2

Explanation:

accerelation =force÷mass

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How would the plane strain fracture toughness of a metal be expected to change with rising temperature?
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Increase

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3 years ago
Does the KE of a car change more when it accelerates from 22 km/h to 32 km/h or when it accelerates from 32 km/h to 42 km/h
mote1985 [20]

Answer:

The change in kinetic energy (KE) of the car is more in the second case.

Explanation:

Let the mass of the car = m

initial velocity of the first case, u = 22 km/h = 6.11 m/s

final velocity of the first case, v = 32 km/h = 8.89 m/s

change in kinetic energy (K.E) = ¹/₂m(v² - u²)

                                          ΔK.E = ¹/₂m(8.89² - 6.11²)

                                                    = 20.85m J

 

initial velocity of the second case, u = 32 km/h = 8.89 m/s

final velocity of the second case, v = 42 km/h = 11.67 m/s

change in kinetic energy (K.E) = ¹/₂m(v² - u²)

                                          ΔK.E = ¹/₂m(11.67² - 8.89²)

                                                    = 28.58m J

The change in kinetic energy (KE) of the car is more in the second case.

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2 years ago
Justify why does a bird flap its wing to fly higher??​
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Answer:

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when they flap higher they use thermals and air currents  because flapping takes a lot of fuel,energy

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3 years ago
An airplane flies from Houston to New York City, which is a distance of 2280 kilometers. The trip takes 3.5 hours. What was the
garik1379 [7]

Answer:

a)603 km/hr

Explanation:

7 0
2 years ago
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