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DENIUS [597]
3 years ago
14

What is your acceleration near earth due to gravity

Physics
1 answer:
Maksim231197 [3]3 years ago
7 0
I dont know but i know i dont lnow if this is true but the gravity is slowly going away every 4 year i dont know i think.
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A car accelerates from rest to 31.8 m/s in 6 sec. What is the<br> acceleration?
Savatey [412]
I think the answer is 5.3
5 0
4 years ago
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Earth has a surface area of 197 million square miles. Convert this area into each of the following units.
slamgirl [31]

Answers:

a) 510,225,121.4 km^{2}

We know the Earth's surface area in square miles is:

197000000 mi^{2}

On the other hand, we know 1 mi=1.60934 km.

Then:

197000000 mi^{2} \frac{(1.60934 km)^{2}}{1 mi^{2}}=510,225,121.4 km^{2}

b) 510.225 Mm^{2}

In this part, we can work with the obtained value in part a:

510,225,121.4 km^{2}

And knowing 1 km=0.001 Mm

Hence:

510,225,121.4 km^{2} \frac{(0.001 Mm)^{2}}{1 km^{2}}=510.225 Mm^{2}

c) 5.1022(10)^{16} dm^{2}

Knowing 1 Mm=10^{7} dm:

510.225 Mm^{2} \frac{(10^{7} dm)^{2}}{1 Mm^{2}}=5.1022(10)^{16} dm^{2}

7 0
3 years ago
Two charged particles are moving with equal velocities of 4.00 m/s in the +x-direction. At one instant of time the first particl
olganol [36]

Answer:

Explanation:

Electric  force between two particles

= ( 9x10⁹x7.4 x 10⁻⁶ x 3.2 x 10⁻⁶ )/  (3.2 x 10⁻²)² ( Distance between particles is 1.6 +1.6 = 3.2 cm . )

= 20.81 x 10 = 208.1 N

1 ) Magnetic field due to movement of second charge

= \frac{\mu_0}{4\pi} \frac{qv}{r^2  }

= 10⁻⁷ x 3.2 x 10⁻⁶ x 4 / (3.2 x 10⁻²)²

B = 1.25 x 10⁻⁹ T.

Due to this magnetic field , there is a force called magnetic force on first particle which will be expressed as follows

Force = Bqv

= 1.25 x 10⁻⁹ x 7.4 x 10⁻⁶ x 4

37 x 10⁻¹⁵ N

2 ) For magnetic force to be equal to electric force let velocity o particles be V

Then magnetic field due to second charge

= 10⁻⁷ x 3.2 x 10⁻⁶ x v / (3.2 x 10⁻²)²

= .3125 v x  10⁻⁹

Magnetic force on first charge

Bqv

=  .3125 v x  10⁻⁹  x 7.4 x 10⁻⁶ x v

2.3125 x 10⁻¹⁵ v²

magnetic force = electric force

2.3125 x 10⁻¹⁵ v² = 208.1

v² = 90 x 10¹⁵

v² = 900 x 10¹⁴

v = 30 x 10⁷ m /s

6 0
3 years ago
Please Answer as soon as possible
USPshnik [31]

Answer:

1. 2.64 kJ 2. 50 W 3. 2.5 A

Explanation:

1. Energy transformed in the lamp, E = IVt where I = current = 0.22 A, V = voltage = 120 V and t = time = 100s

E = 0.22 A × 120 V × 100 s

= 2640 J

= 2.64 kJ

2. The rate at which energy is trans ferred to the resistor is the power.

Power, P = IV where I = current = 5.0 A and V = voltage = 10 V

P = 5.0 A × 10 V = 50 W

3. Since Power P = IV

Current through the heater I = P/V P = 30 W and V = 12 V

I = 30 W/12 V

= 2.5 A

6 0
4 years ago
Emotional elevation only occurs in animal kin groups. true or false
mestny [16]
And the answer is False.


It will help you.
6 0
4 years ago
Read 2 more answers
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