Heat _________________ throughout our environment ________________ of the _______________

A research van de graaff generator has a 2.30 m diameter metal sphere with a charge of 1.10 mc on it. (a) what is the electric p

juin [17]

The potential on the surface of the charged sphere is 3.9 × 10⁷ volts.

Given:

The diameter of the sphere is 2.30 m and the charge of 1.10 mc.

The potential on the surface of a charged sphere is given by,

$V=k\frac{Q}{R}$

Where V is the potential on the surface, Q is the charge, R is the radius and k is the Coulomb's constant.

V = 8.99×10⁹×5×10⁻³/(2.30÷2)

V = 3.9 × 10⁷ volts

To learn more about van de graaff generator: brainly.com/question/9987015

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7 0

2 years ago

In the generation of most anions, the energy change (kj/mol that _______ an electron is ________.

g100num [7]

Released taken in
Anion are associated with exothermic process.

7 0

3 years ago

A 33.0-kg child starting from rest slides down a water slide with a vertical height of 15.0 m. (Neglect friction.)

Temka [501]

This question involves the concept of the conservation of energy.

(a) The child's speed halfway will be "12.13 m/s".

(b) The child's speed three-fourth way will be "14.86 m/s".

(a)

Using the law of conservation of energy:

Potential Energy Lost = Kinetic Energy Gained

$mgh = \frac{1}{2}mv^2\\\\2gh = v^2\\\\v = \sqrt{2gh}$

where,

v = speed = ?

g = acceleration due to gravity = 9.81 m/s²

h = height lost = halfway = height/2 = 15 m/2 = 7.5 m

Therefore,

$v = \sqrt{(2)(9.81\ m/s^2)(7.5\ m)}$

v = 12.13 m/s

(b)

Using the law of conservation of energy:

Potential Energy Lost = Kinetic Energy Gained

$mgh = \frac{1}{2}mv^2\\\\2gh = v^2\\\\v = \sqrt{2gh}$

where,

v = speed = ?

g = acceleration due to gravity = 9.81 m/s²

h = height lost = three-fourth way down = $\frac{3}{4}height = \frac{3}{4}(15\ m) = 11.25\ m$

Therefore,

$v = \sqrt{(2)(9.81\ m/s^2)(11.25\ m)}$

v = 14.86 m/s

Learn more about the law of conservation of energy here:

brainly.com/question/20971995?referrer=searchResults

The attached picture shows the law of conservation of energy.

7 0

3 years ago

Consider a rigid body that rotates but whose center of mass is at rest. a. Trueb. false: the rotational kinetic energy of the en

Fiesta28 [93]

Answer:

Explanation:

True

It is correct as the total rotational energy is the sum of transnational kinetic energy of each small piece of the object.

Consider a rigid body made of small particles each of mass dm have same angular velocity ω and the radius of the rotational path is r.

The velocity of each particle is v = r ω

So, the kinetic energy of each particle is

dK = 0.5 dm x v² = 0.5 x dm x r² x ω²

The total kinetic energy

K = 0.5 x I ω²

where, I is the moment of inertia

5 0

3 years ago

Loops in a motor rotate because?

ch4aika [34]

Answer:

Motors are the most common application of magnetic force on current-carrying wires. Motors have loops of wire in a magnetic field. When current is passed through the loops, the magnetic field exerts torque on the loops, which rotates a shaft. Electrical energy is converted to mechanical work in the process

Explanation:

hope that helps!

5 0

3 years ago

Heat _________________ throughout our environment ________________ of the ________________.

Heat _ throughout our environment of the .