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allochka39001 [22]
3 years ago
6

What determines whether a current carries warm or cold water?

Physics
1 answer:
SashulF [63]3 years ago
3 0
It depends on the electricity passed with cold water or hot water it also depends on the structure of the object in gas the current flows faster than solid or liquid
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27. Calculate the impulse when an average<br> force of 10 N acts on a cart for 5.0 s.
wlad13 [49]

Answer:

50 Ns

Explanation:

Impulse = force × time

J = F Δt

J = (10 N) (5.0 s)

J = 50 Ns

6 0
4 years ago
An astronaut in deep space is at rest relative to a nearby space station. The astronaut needs to return to the space station. A
Paha777 [63]

Answer:

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Explanation:

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7 0
3 years ago
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If it took 125 seconds to complete 5 wave cycles, what is the period of the wave?
finlep [7]

The period of the wave is 25 s

<u>Explanation:</u>

To find the period of the wave, we have the formula

T= seconds/ no of cycle

T= 125/5

T= 25 s

The period of the wave is 25 s

4 0
4 years ago
A 200 g block is pressed against a spring of force constant 1.40 kN/m until the block compresses the spring 10.0 cm. The spring
tino4ka555 [31]

Answer:

Explanation:

This problem bothers on the energy stored in a spring in relation to conservation of energy

Given data

Mass of block m =200g

To kg= 200/1000= 0.2kg

Spring constant k = 1.4kN/m

=1400N/m

Compression x= 10cm

In meter x=10/100 = 0.1m

Using energy considerations or energy conservation principles

The potential energy stored in the spring equals the kinetic energy with which the block move away from the spring

Potential Energy stored in spring

P.E=1/2kx^2

Kinetic energy of the block

K.E =1/mv^2

Where v = velocity of the block

K.E=P.E (energy consideration)

1/2kx^2=1/mv^2

Kx^2= mv^2

Solving for v we have

v^2= (kx^2)/m

v^2= (1400*0.1^2)/0.2

v^2= (14)/0.2

v^2= 70

v= √70

v= 8.36m/s

a. Distance moved if the ramp exerts no force on the block

Is

S= v^2/2gsinθ

Assuming g= 9. 81m/s^2

S= (8.36)^2/2*9.81*sin60

S= 69.88/19.62*0.866

S= 69.88/16.99

S= 4.11m

6 0
3 years ago
YAHOO ANSWERSA 1260 kg car moving south at 12.9 m/s collides with a 2430 kg car moving north. The cars stick together and move a
Fofino [41]

Explanation:

Below is an attachment containing the solution.

7 0
3 years ago
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