Work = Force x Distance
Assuming that this work is being done parallel to the displacement that is, but under that assumption:
W = (50)(10)
W = 500 J
Answer:
So, if a wave hits a mirror at an angle of 36°, it will be reflected at the same angle (36°). ... An incident ray of light hits a plane mirror at an angle and is reflected back off it. The angle of reflection is equal to the angle of incidence. Both angles are measured from the normal.
Explanation:
Answer:
K.E = 100 J
Final P.E = 100 J
Explanation:
The kinetic energy of any object can be given by the following formula:
where,
K.E = Kinetic Energy
m = mass of ball = 2 kg
v = speed of ball
Initially, v = 10 m/s. Therefore, the initial K.E is given as:
<u>K.E = 100 J</u>
Now, at the highest point the K.E of the ball becomes zero. because the ball stops for a moment at the highest point and its velocity becomes zero. So, from Law of Conservation of energy:
Initial K.E + Initial P.E = Final K.E + Final P.E
Initial P.E is also zero due to zero height initially.
K.E + 0 = 0 + Final P.E
<u>Final P.E = 100 J</u>
Answer:
D) The rubber object will become negatively charged, and the glass object will become positively charged.
Explanation:
Electron affinity of rubber or glass will decide the thing that rubber will get the negative charge or the glass will get the negative charge
As we know that if the electron affinity of a given material is high then that material will not lose its electron while rubbing with some other material.
When we compare rubber and glass then we know that electron affinity of rubber is more as compare to glass.
So rubber will get negative charge when we rub it with glass
so correct answer will be
D) The rubber object will become negatively charged, and the glass object will become positively charged.
