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alukav5142 [94]
3 years ago
11

Which of the following provides alternating current? Select all that apply.

Physics
1 answer:
Zielflug [23.3K]3 years ago
7 0
Answer is power outlet in your house
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A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?
gayaneshka [121]
F=ma so a=F/m
a=225/55=4.09 m/sec^2
3 0
4 years ago
The Indianapolis Motor Speedway has four banked curves, each of which forms a quarter of a circle. Suppose a race car speeds alo
boyakko [2]

Answer:

r =  255.68 m

Explanation:

When a body moves in a circular path, an acceleration, due to constant change in its direction, is developed, known as centripetal acceleration. The centripetal acceleration acts towards the center of the circular path. The formula to calculate the centripetal acceleration is given as follows:

ac = v²/r

where,

ac = centripetal acceleration = 22 m/s²

v = tangential speed = 75 m/s

r = radius of curve = ?

Therefore,

22 m/s² = (75 m/s)²/r

r = (75 m/s)²/(22 m/s²)

<u>r =  255.68 m</u>

4 0
4 years ago
A book with a mass of 2 kg sits on top of a book shelf at a height of 3 m. How much potential energy does the book have
Arada [10]

Answer:

Answer is 98 joules

Explanation:

P. E=2*9.8*3=98

S.i unit of potential energy ⚡ is joules

So answer is 98 joules

5 0
3 years ago
Which of the following is not characteristic of a thunderstorm?
blsea [12.9K]

Answer:

option is option d)

Explanation:

the correct option is option d)

the characteristic of thunderstorm  can be seen by the following scenario

in thunderstorm there is lot of movement of air the lighter i.e.warmer air moves up and the colder air moves down creating the condition of thunderstorm.

heavy rain , strong wind , potentially large hail stones is the situation of the thunderstorm.

during thunderstorm there is rain and snow at intermediate.

hence only option left is option d.

7 0
3 years ago
An object has kinetic energy of 324 J. If it’s speed is 9m/s, what is it’s mass?
harkovskaia [24]
It is 8 kilograms











I had to type more so here you go
6 0
3 years ago
Read 2 more answers
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