All categories

3 years ago

The minimum velocity of a projectile launched at an angle is at the beginning of the projectile's path. True False

Physics

1 answer:

Colt1911 [192]3 years ago

4 0

Answer:

False

Explanation:

The statement; the minimum velocity of a projectile launched at an angle is at the beginning of the projectile's path is False.

A projectile launched at an angle has minimum velocity at the top of its path. At this point, the projectile has reached its maximum height and begins to descend.

You might be interested in

Which of the following terms refer to the area immediately around the crime?

UkoKoshka [18]

Answer:

A....It is a crime sene

Explanation:

6 0

3 years ago

Read 2 more answers

Question 4 of 10

kiruha [24]

B hey what do u know i took that test to

5 0

2 years ago

Maya uses a tuning fork of frequency 250 Hz to produce transverese waves on a stretched string. Her friend justin measure the di

Goshia [24]

Answer:

The velocity of the wave is 12.5 m/s

Explanation:

The given parameters are;

he frequency of the tuning fork, f = 250 Hz

The distance between successive crests of the wave formed, λ = 5 cm = 0.05 m

The velocity of a wave, v = f × λ

Where;

f = The frequency of the wave

λ = The wavelength of the wave - The distance between crests =

Substituting the known values gives;

v = 250 Hz × 0.05 m = 12.5 m/s

The velocity of the wave, v = 12.5 m/s.

6 0

2 years ago

______ involves organizing and breaking down information into easier groups to expand capacity. Rehearsal is the verbal repetiti

adell [148]

Hi!

The answers would be <u>chunking</u> & <u>short-term</u>

1. <u>Chunking </u>involves organizing and breaking down information into easier groups to expand capacity.

<h3>Explanation:</h3>

Chunking is a mental process that is observed to increase short-term memory by taking the information and categorizing it into small groups. For instance, a longer number taken as a single unit is harder to recall then when it is divided into smaller units. 235469350 is harder to instantly recall as compared to when it is chunked into 3 groups: 235 469 350.

This allows more information to be stored in, thereby increasing the capacity of the mind to store information.

2. Rehearsal is the verbal repetition of information. These techniques are especially important for the improvement of <u>short-term</u> memory.

<h3>Explanation: </h3>

Short-term memory is lost after a couple of seconds or minutes, for instance even if you chunk the information, you might not recall it after 30 seconds. Rehearsing or repetition of information, either loudly or mentally, extends the time a particular information is retained.

So you depending on the number of times you repeat the number 235 469 350, the more your short term memory improves .

Hope this helps!

6 0

3 years ago

Filiberto va a 90m/s en su carri, de repente se distrae por un par de segundos y su velocdad pasa a 40 m/s ¿cual fue su acelerac

svet-max [94.6K]

Answer:

Filiberto experimenta una deceleración de $2\,\frac{m}{s^{2}}$ .

Explanation:

(The problem was written in Spanish. Hence, explanation will be held in Spanish).

Asúmase que Filiberto se distrae por 2 segundos, puesto que un par equivale a dos, y que el vehículo experimenta un aceleración constante. La deceleración experimentada por el vehículo se deriva de la siguiente fórmula:

$a = \frac{v-v_{o}}{\Delta t}$

$a = \frac{40\,\frac{m}{s}-90\,\frac{m}{s} }{2\,s}$

$a = -25\,\frac{m}{s^{2}}$

Filiberto experimenta una deceleración de $2\,\frac{m}{s^{2}}$ .

7 0

3 years ago