Since opposite charges attract each other, the negatively charged electrons are attracted to the positively charged protons. ... Together, all of the electrons of an atom create a negative chargethat balances the positive charge of the protons in the atomic nucleus.

Explanation:

4 0

3 years ago

If an object falls from rest and lands 3.2 seconds later, how many<br> meters did it fall

DIA [1.3K]

Answer:

50.2 meters

Explanation:

When an object falls, it goes a distance d in time t according to the formula:

$d=\frac{1}{2}*g*t^{2}$

d is the distance in meter, g is the acceleration due to gravity with the value of 9.8 $m/s^{2}$ , t is the time in seconds

Therefore, $d = \frac{1}{2}*9.8*(3.2)^{2}$

d= 50.176 ≈ 50.2m

6 0

3 years ago

Why can’t you feel the force of attraction between you and Mars?

laila [671]

We're millions of miles away from mars

4 0

3 years ago

A rocket with a mass of 62,000 kg (including fuel) is burning fuel at the rate of 150 kg/s and the speed of the exhaust gases is

mezya [45]

Answer:

h≅ 58 m

Explanation:

GIVEN:

mass of rocket M= 62,000 kg

fuel consumption rate = 150 kg/s

velocity of exhaust gases v= 6000 m/s

Now thrust = rate of fuel consumption×velocity of exhaust gases

=6000 × 150 = 900000 N

now to need calculate time t = amount of fuel consumed÷ rate

= 744/150= 4.96 sec

applying newton's law

M×a= thrust - Mg

62000 a=900000- 62000×9.8

acceleration a= 4.71 m/s^2

its height after 744 kg of its total fuel load has been consumed

$h= \frac{1}{2}at^2$

$h= \frac{1}{2}4.71\times4.96^2$

h= 58.012 m

h≅ 58 m

4 0

4 years ago