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
Inga [223]
3 years ago
10

Hi, I have a question if I calculate the average force that must be exerted on a 0.145 kg baseball for me to give it an accelera

tion of 130 m/s2. How would I get I get the acceleration would I divide 130 by 0.145 kg to get the acceleration?
​
Physics
1 answer:
faltersainse [42]3 years ago
7 0
Newton’s Second Law: Force = mass times acceleration.

F = 0.145 * 130

You would multiply to find the force required, not divide. Hope this helps!
You might be interested in
If the velocity of blood flow in the aorta is normally about 0.32 m/s, what beat frequency would you expect if 4.40-MHz ultrasou
dusya [7]

Answer:

The beat frequency is 0.0019 MHz.

Explanation:

Given that,

Velocity = 0.32 m/s

Frequency = 4.40 MHz

Speed of wave = 1540 m/s

We need to calculate the frequency

Case (I),

Observer is moving away from the source

Using Doppler's effect

f'=\dfrac{v-v'}{v}f

Where, v' = speed of observer

Put the value into the formula

f'=\dfrac{1540-0.32}{1540}\times4.40

f'=4.399\ MHz

Case (II),

Cell is as the source of sound of frequency f' and it moving away from the observer.

Using formula of frequency

f''=\dfrac{v-v_{s}}{v+v_{s}}\times f

f''=\dfrac{1540-0.32}{1540+0.32}\times4.399

f''=4.3971\ MHz

We need to calculate the beat frequency

\Delta f= f'-f''

\Delta f=4.399-4.3971=0.0019\ MHz

Hence, The beat frequency is 0.0019 MHz.

4 0
3 years ago
Sedimentary rocks are the only rocks that can potentially containa.fossils.c.fractures.b.minerals.d.faults. Please select the be
Elena-2011 [213]
Hello <span>Mr1guy24 </span>


Question: <span>Sedimentary rocks are the only rocks that can potentially contain?
</span>
Answer: Fossils (A)

Reason: This is what makes sedimentary rocks unique 

Hope This Helps!
-Chris
8 0
3 years ago
Read 2 more answers
Problem 21-40a:
Greeley [361]

Answer:

Part a)

\frac{F_e}{F_g} = 2.74 \times 10^{12}

Part b)

q = 3.37 \times 10^{-4} C

Explanation:

As we know that electric force on electric charge is given as

F = qE

here we have

q = 1.6 \times 10^{-19}C

E = 153 N/C

now force is given as

F = (1.6 \times 10^{-19})(153) = 2.45 \times 10^{-17} N

Gravitational force on electric charge near surface of earth is given as

F_g = mg

F_g = (9.1 \times 10^{-31})(9.81) = 8.93 \times 10^[-30} N

now the ratio of two forces is given as

\frac{F_e}{F_g} = \frac{2.45 \times 10^{-17}}{8.93 \times 10^{-30}}

\frac{F_e}{F_g} = 2.74 \times 10^{12}

Part b)

Now the ball is balanced by the electric force and the force of gravity on it

so here we have

F_g = qE

mg = qE

(5.25 \times 10^{-3})(9.81) = q(153)

here we have

q = 3.37 \times 10^{-4} C

8 0
3 years ago
How can understanding velocity help to prevent a mid-air collision
dsp73

Answer:

To maintain enough time to prevent a collision, a system operating in air traffic where aircraft speed does not

fall below 100 km/h (most medium-sized UAVs and GA aircraft) will need to be able to detect obstacles which

subtend an arc-width of as small as 0.125 mra

7 0
3 years ago
How does amplitude determine loudness?
sdas [7]

Answer:

Explanation:

Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves. Greater amplitude waves have more energy and greater intensity, so they sound louder.

7 0
2 years ago
Read 2 more answers
Other questions:
  • An asteroid that has an orbital period of 3 years will have an orbital with a semi-major axis of about _____ years.
    7·1 answer
  • A book with a mass of 1kg is dropped from a height of 3m . What is the potential energy of th book when it reaches the floor?​
    15·1 answer
  • Help please!!!
    5·1 answer
  • What is the complex and non linear process of energy flow between species called
    10·2 answers
  • The area of the maxila where the teeth attach is called the ??
    8·1 answer
  • A 1000 watt microwave oven takes 90 seconds to heat a bowl of soup. How many joules of energy does it use?
    10·1 answer
  • A 4.50-kg centrifuge takes 200 s to spin up from rest to its final angular speed with constant angular acceleration. A point P l
    11·1 answer
  • Which of the following is NOT a kind of energy store?
    8·1 answer
  • If the pressure of a gas is kept constant and the temperature (in Kelvin) is cut in half, the volume will _________.
    12·1 answer
  • Why is the efficiency of a machine always less than 100%?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!