Answer:
the current is 15.68 × 
A
Explanation:
mass = 1000 kg
magnetic fied = 2T
rail separation = 2m
escape velocity is 11.2km/s = 11.2 × 
m/s
distance = 10 km = 
m
to find out
determine the current
solution
we know force F = I×L×B
here I is current and L is rail separation and B is magnetic field
so F = I ×2×2 = 4 I
so
acceleration is a = 
a = 
m/s²
so equation of motion
v²-u² = 2 a S
here u is initial velocity and S is distance and a is acceleration and v is final velocity
11.2 × - 0 = 2× ×
solve we get I
I = 15.68 × A
so the current is 15.68 × A
The NUCLEUS is the center of the atom. it contains protons and NEUTRONS
protons have a POSITIVE charge
neutrons have a NEUTRAL charge
electrons have a NEGATIVE charge
Answer:
Ionic Compound
Explanation:
To identify the type of chemical bond in a molecule, look at the atoms that make up the compound. If there are two nonmetals, it is a covalent bond. If the two atoms are metals, it is a metallic bond. If one atom is a metal and the other is a nonmetal, it is an ionic bond. Ionic compounds are also known as salts. You can identify KBr as an ionic compound because potassium is a metal and a salt.
Hope this helps
Answer:
See explanation
Explanation:
Since the original count rate is 600 Bq,
i) after 1 half life, the count rate decreases to 1/2 of 600 Bq = 300 Bq
ii) after 2 half lives, the count rate decreases to 1/4 of 600 = 150 Bq
iii) after 3 half lives, the count rate decreases to 1/6 of 600 = 100 Bq
iv) after 4 half lives, the count rate decreases to 1/8 of 600 = 75 Bq
Answer:Mechanical waves, electromagnetic waves, and matter waves.
Explanation: does are the waves
