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3 years ago

HELP PLS RIGHT ANSWER GETS BRAINLIEST!!!!

Physics

1 answer:

mr Goodwill [35]3 years ago

8 0

Answer:

♧ Write the correct abbreviation for each metric unit.

♧ Try these conversions, using the ladder method.

2 g
104000 m
4.8 m
5600 g
0.8 cm
5000 mL
0.198 kg
0.075 L
0.5 m
560 cm
160 mm
2.5 km
65000 mg
63 mm
0.12 g

♧ Compare using <, >, or =.

16. <

17. >

18. =

19. =

20. <

21. >

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Have some fr/ee points because i finished highschool today :)

Aleks04 [339]

Answer:

Thank you :)

Explanation:

And congrats on finishing !!

3 0

3 years ago

A barefoot field-goal kicker imparts a speed of 54 m/s to a football initially at rest. If the football has a mass of 0.55 kg an

il63 [147K]

Answer:

Force, F = 900 N

Explanation:

Given that,

Mass of the football, m = 0.55 kg

Initial speed of the ball, u = 0

Final speed, v = 54 m/s

Time of contact, t = 0.033 s

We need to find the magnitude of the force exerted by the ball on the kicker’s foot. It is a case of second law of motion. It is equal to the rate of change of momentum. So,

$F=\dfrac{\Delta p}{\Delta t}\\\\F=\dfrac{mv}{t}\\\\F=\dfrac{0.55\times 54}{0.033 }\\\\F=900\ N$

So, the magnitude of the force exerted by the ball on the kicker’s foot is 900 N.

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3 years ago

Do all types of waves need a medium to travel through

Vanyuwa [196]

No they all don't need a medium to travel.

Example is electromagnetic waves which travel through vacuum.

5 0

4 years ago

If 20N force produces an acceleration of 5ms^-2 In a body then the mass of the body will be:

meriva

F = ma
m = F/a
m = 20N / 5m/s^2
m = 4kg

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3 years ago

By how much would 1500j of heat energy raise the temperature of 0.50kg of aluminum

valentinak56 [21]

pls what is the specific heat capacity of water

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2 years ago