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3 years ago

How do you change yoru name on brainly

Physics

2 answers:

Lina20 [59]3 years ago

3 0

Answer:

I don't think you can...

Explanation:

SVETLANKA909090 [29]3 years ago

3 0

Sadly, you can *not* change your username on Brainly. However, if you create a new account, you can add a new username. Sorry for the inconvenience!

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If it took 10sec to climb the ladder what was your power in watts nd kilowatt?

Vaselesa [24]

That depends on my mass and the height of the ladder.

4 0

3 years ago

You have a circuit with a 50 Ω , a 100 Ω , and a 150 Ω - resistor connected in series. (a) Rank the current through them from hi

olga2289 [7]

Explanation:

(a) A circuit has 50 Ω, a 100Ω and a 150 Ω resistor are connected in series. We know that in series combination, current through each resistor is same. So, current through a 50 Ω, a 100Ω and a 150 Ω resistor is same.

(b) Ohm's law of given by :

V = I R

V is potential difference. As I is same, so, the resistor having highest resistance will have highest potential difference. So,

$V_3>V_2>V_1$ .

Hence, this is the required solution.

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3 years ago

An object will experience a Change in motion if the forces are__________

anastassius [24]

Answer:

According to Newton's first law of motion, an object will experience a change in motion if the forces are unbalanced.

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3 years ago

A 20 m high filled water tank develops a 0.50 cm hole in the vertical wall near the base. With what speed does the water shoot o

Rina8888 [55]

Answer:

The speed of the water shoot out of the hole is 20 m/s.

(d) is correct option.

Explanation:

Given that,

Height = 20 m

We need to calculate the velocity

Using formula Bernoulli equation

$\dfrac{1}{2}\rho v_{1}^2+\rho gh_{1}=\dfrac{1}{2}\rho v_{2}^2+\rho gh_{2}$

Where,

v₁= initial velocity

v₂=final velocity

h₁=total height

h₂=height of the hole from the base

Put the value into the formula

$v_{1}^2=2g(h_{2}-h_{1})$

$v_{1}=\sqrt{2g(h_{2}-h_{1})}$

$v_{1}=\sqrt{2\times9.8\times(20-0.005)}$

$v_{1}=19.7\ m/s= approximate\ 20\ m/s$

Hence, The speed of the water shoot out of the hole is 20 m/s.

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3 years ago

In deciding whether to use a technology, people must analyze

butalik [34]

In deciding whether to use a technology, people must analyze the good effects and the bad effects of using a certain technology. People should weigh the consequences well. In deciding, it should be kept in the mind that the goal of using something should benefit people in a good way.

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3 years ago