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forsale [732]
2 years ago
6

Wonder Woman uses 2,000 N to lift a truck 2.3 meters in 5 seconds. How much power did she use?

Physics
1 answer:
tino4ka555 [31]2 years ago
7 0

Answer:

she used alot

Explanation:

she would need to be very powerful if she coukd do that.. but then again its wonder woman.

(srry just so detail )

but

f=2,000

x=2.3

w=?

2,000x 2.3 =869.57

w=869.57

t=5 s

p=?

p=w/t

869.57/5=173.913

so she used 173.913 w also known as power

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Explanation:

a = gsinθ

a = 9.8sin30

a = 4.9 m/s²

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How much money would be saved by turning off one 100.0-W lightbulb 3.0 h/day for 365 days if the
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Answer:

the money that would be saved is $13.14.

Explanation:

Given;

power consumed by the light bulb, P = 100 W = 0.1 kW

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cost rate of power consumption, C = $0.12 per kWh

Energy consumed by the light bulb for the given days;

E = Pt

E = 0.1 kW  x 1,095 hr

E = 109.5 kWh

Cost of energy consumed = 109.5 kWh   x   $0.12 / kWh

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Therefore, the money that would be saved is $13.14.

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A proton and an alpha particle are momentarily at rest at adistance r from each other. They then begin to move apart.Find the sp
Arte-miy333 [17]

Answer:

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Explanation:

Hello!

We can solve this problem using conservation of energy and momentum.

Since both particles are at rest at the beginning, the initial energy and momentum are:

Ei = k (q1q2)/r

pi = 0

where k is the coulomb constant (= 8.987×10⁹ N·m²/C²)

and q1 = e and q2 = 2e

When the distance between the particles doubles, the energy and momentum are:

Ef = k (q1q2)/2r + (1/2)m1v1^2 + (1/2)m2v2^2

pf = m1v1 + m2v2

with m1 = m,   m2 = 4m,    v1=vf_p,    v2 = vf_alpha

The conservation momentum states that:

pi = pf      

Therefore:

m1v1 + m2v2 = 0

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v2 = (1/4) v1

The conservation of energy states that:

Ei = Ef

Therefore:

k (q1q2)/r = k (q1q2)/2r + (1/2)m1v1^2 + (1/2)m2v2^2

Replacing

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      and   v2 = (1/4)v1

We get:

(1/2)mv1^2 = k e^2/r + (1/2)4m(v1/4)^2 =  k e^2/r + (1/8)mv1^2

(3/8) mv1^2 = k e^2/r

v1^2 = (8/3) k e^2/(m*r)

3 0
3 years ago
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