Answer:
The one of the major difference between the magnetic and electric field is that the electric field induces around the static charge particle which is either negative or positive, whereas the magnetic field produces around the poles (i.e., the north and south pole) of the magnet
Explanation:
Answer:
The speed should be reduced by 1/√2 or 0.707 times
Explanation:
The relationship between the kinetic energy, mass and velocity can be represented by the following equation:
K.E = ½m.v²
In this equation, the mass is inversely proportional to the square of the velocity or speed. This means that as the mass increases, the speed reduces by × 2.
Let; initial mass = m1
Final mass = m2
Initial velocity = v1
Final velocity = v2
According to the question, if the mass of the body is doubled i.e. m2 = 2m
½m1v1² = ½m2v2²
½ × m × v1² = ½ × 2m × v2²
Multiply both sides by 2
(½ × m × v1²)2 = (½ × 2m × v2²)2
m × v1² = 2m × v2²
Divide both sides by m
v1² = 2v2²
Divide both sides by 2
v1²/2= v2²
Square root both sides
√v1²/2= √v2²
v1/√2 = v2
v2 = 1/√2 v1
This shows that to maintain the same kinetic energy if the mass is doubled, the speed should be reduced by 1/√2 or 0.707 times.
I think it’s the scientific method
<u>Statement</u><u>:</u>
A non-deformed spring is 15 cm long. When a 2.0 N force is applied to it, its length becomes 19 cm.
<u>To </u><u>find </u><u>out:</u>
The spring constant of the spring.
<u>Solution:</u>
- Extension of the spring (x)
- = (19 - 15) cm
- = 4 cm
- = 0.04 m [since we have to find the answer in N/m]
- Let the spring constant of the spring be k.
- We know, the formula of spring force, i.e.,
- F = kx
- Putting the values in the above formula, we get
- 2 N = k × 0.04 m
- or, k = 2 N ÷ 0.04 m
- or, k = 50 N/m
<u>Answer</u><u>:</u>
<u>The </u><u>spring </u><u>constant</u><u> of</u><u> </u><u>this </u><u>spring </u><u>is </u><u>5</u><u>0</u><u> </u><u>N/</u><u>m.</u>
Hope you could understand.
If you have any query, feel free to ask.
