Answer:
5.33*10^-3 seconds
Explanation:
c = d/t
c = speed of light constant (3.0*10^5 km/s)
d = distance (1600 km)
t = ?
3.0*10^5 = 1600/t
t = 1600/3.0*10^5
t = 5.33*10^-3 seconds
I hope this helped! :)
<h2>The frequency of driver is 700 Hz</h2>
Explanation:
The frequency of wave in a string is given by the relation
n = 
here n is the frequency
p is the number of antinodes and l is the length of string .
T is the tension in string and m is the mass per unit length
Thus 420 =
I
Now if there is 5 antinodes , the value of p = 5
Thus n =
II
Dividing II by I , we have
n/420 = 5/3
or n = 5/3 x 420 = 700 Hz
Answer:
c. from south to north
Explanation:
since we know that:
F = qv×B
where F is the force and in this case is pointed upward
where v is the velocity due east
the field must be due north by the right hand rule
Therefore, near the equator the magnetic field lines of the earth are directed north from south
Answer:
The total tension in the child's neck muscle, T = 56.51 N
Explanation:
Let m = mass of the child's neck
Radius of the curve, r = 2.40 m
The child's speed, v = 3.35 m/s
The tension force on the child's neck when he raises his head up off the floor, 
The tension force on the child's neck when he raises his head from the wall of the slide, 

Since he makes a circular turn in water, the radial acceleration can be given by the equation:


The total tension in the child's neck muscle till be calculated as:

Answer:
Electrons revolves around the nucleus in a fixed orbits with fixed energy.
electron clouds.
Explanation:
Rutherford in his model of atom explained:
- Maximum space inside the atom is empty.
- Electron revolves around the the center called nucleus.
- Nucleus contains the positive charge.
Bohr's in his model explained that:
- Electrons revolves around the nucleus in a fixed orbit named as shells.
- Each orbits or shells has fixed amount of energy and size.