An electron has an negative charge. What is true about the charge of a particle that is attracted to an electron
1 answer:
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The mass of the car is 2000 kg
Explanation:
We can solve this problem by using Newton's second law of motion, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:
where
is the net force
m is the mass
a is the acceleration
In this problem, we have:
is the acceleration of the car
Each person applies a force of 400 N, and there are five men, so the total force applied is
Therefore, the mass of the car is:
Learn more about Newton's second law of motion:
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Answer:
at distance 18.33 ft no biological effects
Explanation:
given data
distance = 41 ft
radiation = 5 rem
to find out
how close get so no biological effects
solution
we know here that intensity of radiation R is inversely proportional to (radiation)²
so here equation will be
.............1
here I is intensity
so here I1 = 25
because for 0 to 25 there is no detectable effects and for 25 to 100 it will . temporary decrease so
we take 25 because dose is less than 25 so we take that highest value
so
R1 = 18.33 ft
so at distance 18.33 ft no biological effects
Atomic mass= number of protons + number of neutrons
hope this helps
hope this helps