All categories

3 years ago

What are ways to improve the design of this experiment? Check all that apply

Physics

1 answer:

Serhud [2]3 years ago

3 0

Answer:

B,D,E

Explanation:

I got you

B. Experiment with a wider range of materials.

D.Use a laboratory galvanometer to make precise measurements.

E. Test the strength of the electromagnet by varying the number of wire coils.

You might be interested in

A solid sphere rolls along a horizontal, smooth surface at a constant linear speed without slipping. What is the ratio between t

Pavlova-9 [17]

The ratio of the rotational kinetic energy about the center of the sphere and the total kinetic energy of the sphere is 2/7.

<h3>What is the rotational kinetic energy of a sphere?</h3>

The rotational kinetic energy of the sphere is directly proportional to the square of angular acceleration.

$K = \dfrac 12 I\omega ^2$

Where,

$I$ = rotational inertia of sphere = 2/5MR²

Where $M$ is the mass of the sphere and $R$ is the radius of the sphere,

ω = angular acceleration of sphere = V/R

Where $V$ is the speed of the sphere.

So,

K = 1/2 × 2/5MR² × V²/R²

K = MV²/5

The translational kinetic energy of the sphere,

$K' = \dfrac 12 MV^2$

The total kinetic energy of the sphere,

$K_t = K + K'$

So,

$K_t= \dfrac {MV^2}5 +\dfrac { MV^2}2\\\\K_t= \dfrac {7MV^2}{10}$

Thus the Ratio of rotational kinetic energy to total kinetic energy,

$\dfrac KK_t = \dfrac {\dfrac {MV^2}{5} }{ \dfrac {7MV^2}{10}}\\\\\dfrac KK_t = \dfrac 15 \times \dfrac { 10}7\\\\\dfrac KK_t= \dfrac 27$

Therefore, the ratio of the rotational kinetic energy about the center of the sphere and the total kinetic energy of the sphere is 2/7.

Learn more about rotational kinetic energy:

brainly.com/question/14611300

3 0

2 years ago

Ibrahim is experimenting with his circuits. He made a circuit using a 12V battery and 6.5 ohm resistor. But then he realized he

SVETLANKA909090 [29]

7.5 V im pretty sure.

4 0

3 years ago

Read 2 more answers

a girl skateboards with a kinetic energy of 2543.2 J. if the girl and the skateboard have a total mass of 110 kg, what is her sp

zhuklara [117]

Using the definition of kinetic energy, we have:

$E_{c}= \frac{mv^2}{2} \\ 2543.2*2=110v^2 \\ \boxed {v=6.8m/s}$

6 0

3 years ago

In which tool are uranium atoms split to make electricity? A. turbine B. generator C. reactor D. condenser

svetoff [14.1K]

The tool that splits uranium atoms to make electricity is a nuclear reactor. A nuclear reactor is also known as an atomic pile.

Your answer is: C) Reactor

Have an amazing day!

4 0

3 years ago

What is the area of space around a magnet called?

erma4kov [3.2K]

Answer:

These acts of attraction and repulsion are called “magnetism”, and the magnetic space around a magnet is called the “magnetic field”

Explanation:

8 0

3 years ago