Answer:
<h2>21 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 3.5 × 6
We have the final answer as
<h3>21 N</h3>
Hope this helps you
Mechanical advantage is the amount by which a machine multiplies input force. It is a measure of the force amplification using a tool or machine system.
Answer:
The potential difference is the drop in voltage that occurs across a resistor as current flows through it in a circuit, potential difference or voltage(V) = current (I) *resistance (R), or to abbrevate V = I*R. In this case, I = 5amps and R = 10 ohms, so V = 5 * 10 = 50volts
Answer:
![q=5.37*10^{5}C](https://tex.z-dn.net/?f=q%3D5.37%2A10%5E%7B5%7DC)
Explanation:
If we assume that the Earth is a spherical conductor, according to Gauss's Law, the electric field is given by:
![E=\frac{kq}{r^2}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7Bkq%7D%7Br%5E2%7D)
Here k is the Coulomb constant, the excess charge on the Earth's surface and r its radius. Solving for q:
![q=\frac{Er^2}{k}\\q=\frac{119\frac{N}{C}(6.371*10^6m)^2}{8.99\frac{N\cdot m^2}{C^2}}\\q=5.37*10^{5}C](https://tex.z-dn.net/?f=q%3D%5Cfrac%7BEr%5E2%7D%7Bk%7D%5C%5Cq%3D%5Cfrac%7B119%5Cfrac%7BN%7D%7BC%7D%286.371%2A10%5E6m%29%5E2%7D%7B8.99%5Cfrac%7BN%5Ccdot%20m%5E2%7D%7BC%5E2%7D%7D%5C%5Cq%3D5.37%2A10%5E%7B5%7DC)
Kinetic energy is the energy possessed by an object on motion. it is expressed as follows:
KE = 0.5mv^2
where m is the mass and v is the velocity of the object. We calculate as follows:
KE = 0.5mv^2
1.1x10^9 J = 0.5(8.0x10^4 kg) v^2
v = 165.83 m/s