Answer:
Explanation:
We are asked to find the acceleration of a box.
According to Newton's Second Law of Motion, force is the product of mass and acceleration.
The mass of the box is 5 kilograms. There are two forces applied: a 25 Newton force and a 50 Newton force, both applied right. Since they are applied in the same direction, we can add them.
- 25 N right + 50 N right = 75 N right.
Now we know 2 of the variables in the formula:
- F= 75 N or 75 kg*m/s²
- m= 5 kg
Substitute the values into the formula.
We are solving for a, so we must isolate the variable. It is being multiplied by 5 kilograms. The inverse operation of multiplication is division. Divide both sides by 5 kg.
The units of kilograms cancel.
The acceleration is in the same direction as the force, so the acceleration is <u> 15 meters per second squared to the right.</u>
Just put a full picture clearly we can’t really see
Destructive Interference. An example of destructive interference is noise canceling headphones. Noise canceling headphones work by using a microphone to pick up the frequencies of incoming waves. The headphone then sends out a wave that is the exact opposite, canceling out the sound.
Answer: The net charge on the sphere is -5.9nC
Explanation:
The electric field outside the conducting solid sphere is given as:
E = (kq)/r^2
Here, q is the net charge on the sphere and r is the distance from the center of the sphere.
The net charge is calculated as follows;
q = Er^2/k
E = 2.7*10^3N/C
r = 14cm = 0.14m
k = 8.99*10^9Nm^2/C^2
q = (2.7*10^3)(0.14^2)/(8.99*10^9)
q = 5.9*10^-9C
= 5.9nC
As the electric field directed radially inward, the net charge on the sphere is negative.
Hence the net charge on the sphere is -5.9nC