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Setler [38]
3 years ago
12

A circuit has a current of 2.4 A. The voltage is increased to 4 times its original value, while the resistance stays the same.

Physics
2 answers:
LekaFEV [45]3 years ago
5 0

Answer:

Explanation:

D

serious [3.7K]3 years ago
3 0
decade to decrease it’s a coed reaction 77
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WILL GIVE BRAINLIST ​
Gnesinka [82]

Answer:

the graph shows the cost of natural hazards in the us in 2011 (in billions of dollars)

Explanation:

it shows that the cost of a tornado happeniy is 30 billion dollars

and the cost of an earthquake is way lower than the one the tornado which is 0 dollar

7 0
2 years ago
Read 2 more answers
A cart is driven by a large propeller or fan, which can accelerate or decelerate the cart. The cart starts out at the position x
mash [69]

Answer:

The acceleration of the cart is 1.0 m\s^2 in the negative direction.

Explanation:

Using the equation of motion:

Vf^2 = Vi^2 + 2*a*x

2*a*x = Vf^2 - Vi^2

a = (Vf^2 - Vi^2)/ 2*x

Where Vf is the final velocity of the cart, Vi is the initial velocity of the cart, a the acceleration of the cart and x the displacement of the cart.

Let x = Xf -Xi

Where Xf is the final position of the cart and Xi the initial position of the cart.

x = 12.5 - 0

x = 12.5

The cart comes to a stop before changing direction

Vf = 0 m/s

a = (0^2 - 5^2)/ 2*12.5

a = - 1 m/s^2

The cart is decelerating

Therefore the acceleration of the cart is 1.0 m\s^2 in the negative direction.

5 0
3 years ago
An object moves 360 km in 2 hours calculate its speed into km/h and m/s​
erik [133]

Explanation:

Speed= Distance / time

Speed= 360/2

= 180 km/h

Speed= 180 × 5/18

= 50 m/s

hope it helps

5 0
2 years ago
Read 2 more answers
The bungee cord has an unstretched length of 20.0 m. The mass of the student is 50.0 kg. The gravitational field strength is 9.8
viva [34]

Answer:

a) g.p.e.=mass × gravitational field strength × height

b) Eᵖ= 50 × 9.8 × 20

9800 (J)

4 0
2 years ago
At the end of a race a runner decelerates from a velocity of 11.00 m/s at a rate of 0.300 m/s2. (a) how far does she travel in t
inessss [21]

given that initial velocity is

v_i = 11 m/s

deceleration is given as

a = -0.3 m/s^2

now we have to find the distance covered in 16 s

d = v_i * t + \frac{1}{2} at^2

d = 11*16 - \frac{1}{2}*0.3*16^2

d = 137.6 m

so it will cover 137.6 m distance

part b)

in order to find the final speed

v_f = v_i + at

v_f = 11 - 0.3*16

v_f = 6.2 m/s

so its speed will be 6.2 m/s

8 0
3 years ago
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