Answer:
Explanation:
Electrons will create negative and protons will create positive charge . 5.29 x 10⁶ electrons will neutralize same no of protons . So
( 7.07 - 5.29 ) x 10⁶ protons will create net positive charge
magnitude of this charge can be calculated as follows
no of protons x charge on one proton
(7.07 - 5.29)x 10⁶ x 1.6 x 10⁻¹⁹ C
2.848 X 10⁻¹³ C is the net charge on the sphere. Ans
b )
Protons and electrons have equal but opposite charges .
115 protons will neutralize the charge of 115 electrons .
225-115 = 110 electrons will remain un-neutralized .
Charge on these un-neutralized electrons will be calculated as follows .
no of electrons x charge on a single electrons
110 x 1.6 x 10⁻¹⁹ C
176 X 10⁻¹⁹C is the net charge on the sphere. Ans
The proper option to choose will be B) as the moon influences Earth's tides, and the earth influences the phases of the moon!<span />
Answer:
Their primary way of spreading is from human activities, they can quickly travel around the world for example these new "murder" hornets that can kill a large bee hive with one sting, they traveled all the way from Asia. Invasive species can also be through people's luggage, small boats, planes and large shipment like cargo carriers. I hope this helps. : )
Explanation:
Answer:
100N
Explanation:
Given parameters:
Mass = 20kg
Acceleration = 5m/s²
Unknown:
Force needed to cause the acceleration = ?
Solution:
According to Newton's second law of motion, force is the product of mass and acceleration.
Force = ma
m is the mass
a is the acceleration
Now insert the parameters and solve;
Force = 20 x 5 = 100N
Answer:
1317140.14091 J
Explanation:
h = Perpendicular distance of the car from the ground = 180sin18
g = Acceleration due to gravity = 9.81 m/s²
u = Initial velocity = 20 kmph
v = Final velocity = 65 kmph
The work done by the engine is given by
The work done by the engine is 1317140.14091 J