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3 years ago

What is force x time is called

Physics

1 answer:

Law Incorporation [45]3 years ago

4 0

Answer:

In words, it could be said that the force times the time equals the mass times the change in velocity. In physics, the quantity Force • time is known as impulse. And since the quantity m•v is the momentum, the quantity m•Δv must be the change in momentum. The equation really says that the Impulse = Change in momentum.

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A uniform electric field with a magnitude of 5750 N/C points in the positive x direction. Find the change in electric potential

castortr0y [4]

Explanation:

Given that,

Electric field = 5750 N/C

Charge $q=+10.5\times10^{-6}\ C$

Distance = 5.50 cm

(a). When the charge is moved in the positive x- direction

We need to calculate the change in electric potential energy

Using formula of electric potential energy

$\Delta U=-W$

$\Delta U=-F\cdot d$

$\Delta U=-q(E\cdot d)$

Put the value into the formula

$\Delta U=-10.5\times10^{-6}\times5750\times5.50\times10^{-2}$

$\Delta U=-3.32\times10^{-3}\ J$

The change in electric potential energy is $-3.32\times10^{-3}\ J$

(b). When the charge is moved in the negative x- direction

We need to calculate the change in electric potential energy

Using formula of electric potential energy

$\Delta U=-W$

$\Delta U=-F\cdot (-d)$

$\Delta U=-q(E\cdot (-d))$

Put the value into the formula

$\Delta U=-10.5\times10^{-6}\times5750\times(-5.50\times10^{-2})$

$\Delta U=3.32\times10^{-3}\ J$

The change in electric potential energy is $3.32\times10^{-3}\ J$

Hence, This is the required solution.

3 0

4 years ago

Likurg_2 [28]

Noble gasses.

alkali metals (the first column of elements), alkaline earth metals (the second column of elements), halogens (the next-to-last column of elements), and noble gases (the last column of elements).

5 0

3 years ago

ASAP PLZZ FINALS TOMR GIVE U ALOT OF POINTSS

Annette [7]

Answer:

Explanation:

Let m be mass of the object and v be speed of object b.

Kinetic Energy of B = 1/2 mv^2

Kinetic Energy of A = 1/2 m(2v)^2

= 2 mv^2

= 4 (1/2 mv^2)

= 4 × Kinetic Energy of B

Hence Object A has four times the kinetic energy of object B (Ans B)

7 0

4 years ago

A person weighs 167 lb. The acceleration of gravity is 9.8 m/s 2 . Determine her weight in newtons and her mass in kilograms

sergejj [24]

Explanation:

Weight (N) = Mass * Acceleration

75.74 kg = Mass * 9.8 m/sec^2

Mass = 7.72 kg

Weight = 75.74 N

6 0

3 years ago

Number of protons and electrons and atomic mass for a given element

faltersainse [42]

Explanation:

You can simply subtract the atomic number from the mass number in order to find the number of neutrons. If the atom is neutral, the number of electrons will be equal to the number of protons.

Remember!

1. Your mass number is the total number of neutrons and protons within the atom.

2. Your atomic number is the amount of protons within the atom.

3. For neutral atoms, the electron number is the same as the atomic number.

5 0

3 years ago