3 years ago

Will give brainly!! Help pls!!!

1 answer:

5 0

We use friction to create warmth when we run our hands together.
it helps us from slipping on the floor. that's the only reason we can walk without falling. there is way less friction on wet floor, due to which we fall

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A train of 150 m length is going toward north direction at a speed of 10 ms–1 and a parrot is flying towards south direction par

zloy xaker [14]

Answer:

10ms

Explanation:

The bird must travel the length of the train (150m), with a combined speed of 15m/s this means it will take 10s to cross an accumulated 150ms.

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4 years ago

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Physicists at CERN study the conditions present during the big bang by using machines to do what?

VARVARA [1.3K]

Answer:

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3 years ago

1. Which object has the greatest inertia?

Digiron [165]

Answer:

1.c,2.c,3.a,4.d

Explanation:

the following answer are listed with there number

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4 years ago

Reset Answers

Artemon [7]

Explanation:

At a height of 93 m, the gravitational potential energy is given by :

P = mgh

Where, m is the mass of a penny

We can find its mass.

$m=\dfrac{P}{gh}\\\\m=\dfrac{3}{9.8\times 93}\\\\m=0.00329\ kg$

We need to find how much potential energy will have transformed into kinetic energy at the half way point (46.5m). It can be calculated as :

$E=mgh'\\\\E=0.00329\times 9.8\times 46.5\\\\E=1.499\ J$

Hence, a penny will have transferred 1.499 J of potential energy into kinetic energy.

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4 years ago

A resistor of 5 Ω is placed in a circuit. The voltage drop across the resistor is 12 V. What is the current through the resistor

Kaylis [27]

Data:

R = 5 Ω
U = 12 V
i = ?

Formula:

 $U = R*i$ → $i = \frac{U}{R}$ 

Solving:

 $i = \frac{U}{R}$
$i = \frac{12}{5}$
$\boxed{i = 2.4A}$

Answer:

The current through the resistor is 2.4 Amperes

5 0

3 years ago