Ask question

Ask question

All categories

3 years ago

14

A baseball pitcher delivers a fast ball. During the throw, the speed of the ball increases from 0 to 30.0 m/s over a time of 0.1

00 seconds. The acceleration of the baseball is ____ m/s2.
a.
30

b.
3000

c.
300

d.
3

1 answer:

rosijanka [135]3 years ago

4 0

B is the answer, i hope this helped

You might be interested in

2. A small car has a mass of 890 kg. What is its weight? (Hint: remember the definition of weight).

Dafna1 [17]

What is the weight? The weight of a 890 kg car is:

8727.9185 newtons

or

0.981057067 tons force

or

31393.8261 ounces force

Hope that helps! I apologize if it does not answer your question!

I used this site: <u><em>https://www.sensorsone.com/mass-to-weight-calculator/</em></u>

3 0

3 years ago

Over the time interval after a difference in potential is applied between the ends of a wire, what would happen to the drift vel

Dmitrij [34]

The the drift velocity of the electrons is determined by atom vibrations in the crystal lattice.

<h3>How to explain the information?</h3>

Assume we could increase the average time between collisions in a typical metal to get to a limit of zero resistance. The free electrons would therefore be continuously accelerated by a constant applied voltage, according to the classical paradigm of conduction. Both the current and the drift speed would gradually pick up over time.

Although it is not the scenario implied by the question, it is possible to switch to zero resistance by using a superconducting wire instead of the usual metal. In this scenario, the maximum current is constrained, the drift velocity of the electrons is determined by atom vibrations in the crystal lattice, and it is difficult to produce a potential difference across the superconductor.

Learn more about electrons in:

brainly.com/question/860094

#SPJ4

5 0

2 years ago

Just like Coke is a type of soda, __________ is a type of ___________.

gladu [14]

Answer:

osmosis diffusion

Explanation:

ok it's correct

8 0

3 years ago

If one doubles the emfs in a circuit and doubles the resistances in the circuit at the same time, what happens to the currents t

bija089 [108]

Answer:

Same

Explanation:

Let R be the resistance of the cell and E be the emf.

Let i be the current in the circuit.

i = E / R ..... (1)

Now emf and resistance be doubled.

so, i' = 2E/2R = E/R

So, i' = i (From equation (1)

Current remains same.

3 0

3 years ago

A marble is dropped straight down from a distance h above the floor.

Mrac [35]

Fm=Fe and am>ae
Hopefully this helps

7 0

3 years ago