Physics Middle School

A baseball is thrown at 90 mph from east to west over a distance of 60 ft. What is
true of the ball's motion?
Its speed is 90 mph to the west.
Its acceleration is 30 mph.
Its velocity is 90 mph to the west.
Its acceleration is 150 mph.

Answers

Answer 1

Answer:

Its acceleration is 30 mph.

Explanation:

Answer 2

The true of the ball's motion will be that the velocity is 90 mph to the west. Velocity is the vector quantity. Because it shows the direction.

What is acceleration?

Acceleration is defined as the rate of change of the velocity of the body. Its unit is m/sec². It is a vector quantity. It requires both magnitudes and direction to define.

The given data in the problem is

The velocity of  baseball is,V=  90 mph

The distance travelled in mile is; d=0.0113636 mile

The time period is obtained as;

[tex]\rm t = \frac{d}{v} \\\\ \rm t = \frac{0.0113636}{90} \\\\ t=1.2 \times 10^{-4} \ hr[/tex]

The acceleration is obtained is 0.00108 mile/hr².

Hence, the true of the ball's motion will be that the velocity is 90 mph to the west.

To learn more about acceleration, refer to the link;

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Related Questions

have u ever wanted to just sleep all day and night

Answers

Answer:

yes ofc

Explanation:

yeah i do obviously :))

Which characteristics belong to Whittaker’s classification system? Select two options.

a.three domains
b.six domains
c.two kingdoms
d.five kingdoms
e.five levels
f.seven levels
g.eight levels

Answers

Answer:

Five kingdoms & Seven levels

Explanation:

Robert H. Whittaker proposed five kingdom classical system for living organisms in 1969. These were: Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Animalia, and Kingdom Plantae. His work was the improvement of earlier work conducted by Carl Linnaeus who proposed three kingdom classification system (Animalia, Plantae, and Protista).

Whittaker's system further categorized each kingdom to seven levels. These were: Kingdom → Phylum  →  Class  →   Order  →   Family →   Genus  →   Species. This categorization was based on similarities in organisms at different levels.

PS: The scientific name of each organism is the combination of genus and family name.

B and E sorry if I’m wrong have a good day

A Motion Demonstration Model is shown in the diagram. At which of these positions does the ball have both the greatest potential energy and the least kinetic energy?
A) Position W
B) Position X
C) Position Z
D) Position Y

Answers

Answer:

C

Explanation:

Since potential energy is the energy stored inside an object or item due to its height/location/position, and kinetic energy is the energy and object has do to its motion/movement, the answer would be:
C) position z
Because the ball is no longer moving and is at the highest position that it can be (compared to w, x, and y).

The Humbolt squid can travel 410 meters in 60 seconds. The squids average speed is ____. (Round to the nearest tenth)

Answers

Answer:

They swim at speeds up to 24 km/h (15 mph; 13 kn).

Explanation:

The answer to your problem is 6.8 meters

Which is the source of variations in a population of organisms? No files or links 8th Grade. Please help ASAP.
A- Changes in enviroment
B- Changes in genes
C- The interaction of genes with an enviroment
D- The interaction of individuals with an enviroment

Answers

D the interaction of individuals with an environment
the answer is d i believe

Calculate the energy transferred by a 12V hairdryer, running on a current of 0.50A, that is left on for 8.0 minutes.

Answers


Step 1
List all the information in symbol form and change into appropriate and consistent SI units if required.
V=12V
I=0.5A
t = 8.0 minutes
= 8 × 60
= 480s
E=?
Step 2
Use the correct formula.
E=IVt
Step 3
Calculate the answer by putting the numbers into the formula.
E = IVt
= 0.5 × 12 × 480
= 2880J
The answer is 2880J :) hope this helps!

If Jay pushes on a box with a force of 20N to the right and Bradley pushes on a box 15N to the left, what is the net force on the box?

Answers

Answer:

454665

Explanation:

Answer:

5N right

Explanation:

20-15=5

The difference in electrical potential energy between two places is called:
a. resistance
b. friction
c. induction
d. voltage

Answers

your answer is gonna be d voltage!

The correct option is, (d) voltage.

The difference in electrical potential energy between two places is called voltage.

What is the difference in electrical potential energy between the two places?The external effort required to move a charge in an electric field from one position to another is known as an electric potential difference, or voltage. A test charge with a value of +1 will experience an electric potential difference, which is a shift in potential energy.

What is a difference in electric potential energy?The electric potential difference is the difference in electric potential (V) between the final and the initial location when work is done upon a charge to change its potential energy.

What is the potential difference between two charges?The word "potential difference" refers to the magnitude of the electrostatic force acting between two charged objects. Depending on the polarity of the objects, a charged body will attempt to travel in one direction if it is placed between two objects with a potential difference.

Learn more about  electrical potential energy here:

https://brainly.com/question/14306881

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The dots in electron dot diagrams represent ____ ____.

A core electrons

B electrical charge

C valence electrons

Answers

Answer:

C. valence electrons

Explanation:

Each dot is a valence electron.

Also, in my school, we called them Lewis Dot Structures.

C) Valence electrons.

name all of the processes of the rock cycle... and number them by the picture.... no links

Answers

Answer:

1. magma

2. igneous rock

3. sediments

4. sedimentary rock

5. metamorphic rock

6. melting

7. cooling, heating

8. weathering and erosion

9. compaction and cementation

10. heat and pressure

11. heat and pressure

12. weathering and erosion

Explanation:

just trust me .!!

PLZZZZZ! HELP! I'll give brainliest to the first correct answer, five stars, and a heart!

Answers

Answer:

frequency: 2nd choice

period: 4th choice

amplitude: 1st choice

wavelength: 3rd choice

speed: 5th choice

NO MFKN LINK
9.The distance something travels in a certain amount of time, such as 45mph, is
(10 Point)

A. Velocity

B. Speed

C. Time

Answers

Speed is the answer

Answer:

The answer is A

Explanation:

Velocity is the rate of change of its position with respect to a frame of reference, and is a function of time.

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