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3 years ago

HELP 100 PTS WILL BE GIVEN ASAPPP

Physics

2 answers:

aliina [53]3 years ago

3 0

Answer:

1. Resistance

2. Store chmical energy and transfer it to electrical energy when a circuit is connected

3.Electric current

4. Series and parallel

5. can't see diagram

6. series

7. Parallel

8. can't not see diagram

Explanation:

andrew11 [14]3 years ago

3 0

Answer:

1. Resistance

2. Store chemical energy and transfer it to electrical energy when a circuit is connected

3. Electric current

4. Series and parallel

5. cell (battery)

6. series

7. Parallel

8. Diagram B

9. 12Ω resistor

10. protect equipment by stopping the flow of electric current; protect your house from fire.

11. GFCI outlets prevent electrocution if you are touching a wet appliance. GFCI outlets are found in wet areas.

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A flight attendant pushes a beverage car on an aircraft. Her mass is 75 kg and the cart’s mass is 27 kg. Calculate the accelerat

tankabanditka [31]

Answer:

a = 1.34 m/s²

Explanation:

given,

mass of the attendant(M) = 75 Kg

mass of cart (m)= 27 Kg

Backward force exerted on floor (F)= 155 N

frictional force on the cart (f)= 18 N

acceleration

$a = \dfrac{F_{net}}{M+m}$

F_{net} = F - frictional force

F_{net} = 155 N - 18 N

F_{net} = 137 N

now,

$a = \dfrac{137}{75 + 27}$

$a = \dfrac{137}{102}$

a = 1.34 m/s²

the acceleration produced when flight attendant is equal to a = 1.34 m/s²

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3 years ago

1. A giri rides her bike at 15 m/s for 20 s. How far does she travel in that time?

Svetach [21]

Answer:

300m

Explanation:

distance=speed x time

=15 x 20

= 300m

6 0

3 years ago

Read 2 more answers

A man in a gym is holding an 8.0-kg weight at arm's length, a distance of 0.55 m from his shoulder joint. What is the torque abo

kipiarov [429]

Answer:

$\tau =37.34\ N m$

Explanation:

given,

mass of the weight = 8 Kg

distance = 0.55 m

angle below horizontal = 30°

torque about shoulder

$\tau = \vec{r} \times \vec{F}$

$\tau = r \times F cos \theta$

$\tau = 0.55 \times 8 \times 9.8 \times cos 30^0$

$\tau =37.34\ N m$

torque about his shoulder join is equal to $\tau =37.34\ N m$

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3 years ago

Violet light has a frequency of 7.26 × 1014 Hz and travels at a speed of 3.00 × 108 m/s.

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Answer:

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2 years ago

A student drops a rock from a bridge to the water 12.7 m below. with what speed does the rock strike the water? the acceleration

kolezko [41]

The rock strike the water with the speed of 15.78 m/sec.

The speed by which rock hit the water is calculated by the formula

v= $\sqrt{2gh}$

v= $\sqrt{2*9.8*12.7}$

v=15.78 m/sec

Hence, the rock strike the water with the speed of 15.78 m/sec.

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2 years ago