1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ASHA 777 [7]
3 years ago
7

Please help

Physics
1 answer:
stira [4]3 years ago
5 0

It’s D. The pitch would be lower. I’m 100% sure. I just took the test. I hope this helps you!! <3

You might be interested in
If a projectile travels in the air for 8 seconds when does a projectile reach its highest point
emmainna [20.7K]

Given

The projectile is in air for a time of t=8 sec

To find

The time it takes to reach the highest point

Explanation

A projectile moves up to the highest point and then again moves down following a parabolic path.

So it will reach the highest point at a time half the time it requires to follow teh parabolic path.

The time taken to reach the highest point is 4 sec

Conclusion

The time taken is 4 sec.

5 0
2 years ago
A hair dryer is a pump for air. Do a battery and a Genecon act like pumps for charge?
lyudmila [28]

Answer:

No

Explanation:

8 0
4 years ago
Read 2 more answers
A 20 kg wagon is rolling to the right across a floor. A person attempts to catch and stop the crate and applies a force of 70 N,
Serggg [28]

Answer:

1.736m/s²

Explanation:

According to Newton's second law;

\sum F_x = ma_x\\

Fm - Ff = ma_x\\ where;

Fm is the moving force = 70.0N

Ff is the frictional force acting on the body

Ff = \mu R\\Ff = \mu mg\\

\mu is the coefficient of friction

m is the mass of the object

g is the acceleration due to gravity

a is the acceleration/deceleration

The equation becomes;

Fm - Ff = ma_x\\Fm - \mu mg = ma\\

Substitute the given parameters

Fm - \mu mg = ma\\70 - 0.18(20)(9.8) = 20a\\70-35.28 = 20a\\34.72 = 20a\\a = \frac{34.72}{20}\\a =  1.736m/s^2\\

Hence the deceleration rate of the wagon as it is caught is 1.736m/s²

7 0
3 years ago
A student wants to get real and inverted
sveta [45]

Answer:

concave mirror

Explanation:

5 0
3 years ago
What charges form a neutral charge?
brilliants [131]

A negative to a negative charge will make a neutral charge.

4 0
3 years ago
Read 2 more answers
Other questions:
  • We're can I get a life
    12·2 answers
  • "two planets have the same mass, but planet a has 3 times the radius of planet
    15·1 answer
  • What is the value of g
    7·1 answer
  • An fm radio station broadcasts at a frequency of 101.3 mhz. what is the wavelength?
    12·2 answers
  • A driver of a car took a day trip around the coastline driving at two different speeds. He drove 7070 miles at a slower speed an
    13·2 answers
  • Two objects that are at different temperatures are added to a container of water and then the container is closed. The temperatu
    12·2 answers
  • You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 275 N in the positive x di
    12·1 answer
  • A car of mass 1270 kg makes a 15.0 m radius turn at 11.8 m/s on flat ground. How much centripetal force acts on it?
    13·1 answer
  • Calculate the force necessary to accelerate a 10 kg table from<br> O m/s to 4 m/s in 2 seconds.
    6·1 answer
  • Can you please help me on all of these!!!! Please
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!