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
trapecia [35]
3 years ago
5

What is the velocity of an object that has a momentum of 4,000 kg-m/s and a mass of 115 kg? Round to the nearest hundredth.

Physics
2 answers:
Marizza181 [45]3 years ago
6 0

Answer: A.

Explanation:

V = M (kg*m/sec) /m (kg) = 4000/115 = 800/23 = 34.7826.. m/sec

julia-pushkina [17]3 years ago
4 0
<h2>Answer: 34.78 m/s</h2>

Explanation:

The momentum p is given by the following equation:

p=m.V   (1)

Where:

m is the mass of the object

V is the velocity of the object

Finding the velocity from (1):

V=\frac{p}{m}   (2)

V=\frac{4000kg.m/s}{115kg}  

<u>Finally:</u>

V=34.78m/s >>>This is the velocity of the object

You might be interested in
Pendulum A has a bob of mass m hung from the string of length L; pendulum B is identical to A except its bob has the length 2L.
GenaCL600 [577]

Answer:

f_{B}: f_{A} = \sqrt{\frac{2}{1}}

Explanation:

For pendulum A: Length = L and gravity = g

The frequency of pendulum A is given by

f = \frac{1}{2\pi }\sqrt{\frac{g}{L}}

Here, f is the frequency, L be the length

f_{A} = \frac{1}{2\pi }\sqrt{\frac{g}{L}}     ... (1)

For pendulum B: Length = 2L, gravity = g

The frequency of pendulum B is given by

f_{B} = \frac{1}{2\pi }\sqrt{\frac{g}{2L}}   .... (2)

Divide equation (1) by (2)

f_{B}: f_{A} = \sqrt{\frac{2}{1}}

5 0
3 years ago
A bird flying 5.0 m overhead sees me drop it, and starts to dive straight down towards the bread the instant I release it. She c
gladu [14]

Answer:

15

Explanation:

muntiply the 5.0.3.0 ,you will get ans

5 0
3 years ago
What is the term for a motion you make on a touch screen with the tip of one or more fingers or your hand?
frozen [14]
Double tap, zoom in.

please vote my answer brainliest. thanks!
6 0
4 years ago
A 650-kg elevator starts from rest. It moves upward for 3.00 s with constant acceleration until it reaches its cruis- ing speed
Nataly_w [17]

Answer: P=5573.43\ W

Explanation:

Given

Mass of the elevator is M=650\ kg\\\

Time period of ascension t=3\ s

cruising speed v=1.75\ m/s

Distance moved by elevator during this time

Suppose Elevator starts from rest

\Rightarrow v=u+at\\\Rightarrow 1.75=0+a(3)\\\Rightarrow a=0.583\ s

Distance moved

\Rightarrow h=ut+0.5at^2\\\Rightarrow h=0+0.5\times 0.5833\times (3)^2\\\Rightarrow h=2.62\ m

Gain in Potential Energy is

\Rightarrow E=mgh\\\Rightarrow E=650\times 9.8\times 2.62\\\Rightarrow E=16,720.3\ N

Average power during this period is

\Rightarrow P=\dfrac{E}{t}\\\\\Rightarrow P=\dfrac{16,720.3}{3}\\\\\Rightarrow P=5573.43\ W

7 0
3 years ago
Read 2 more answers
4. Which point on this position vs. time graph has the fastest speed?
galben [10]

Answer:

Since v = (x(2) - x(1)) / t

point 2 obviously has the greatest displacement in a given time

Also, point 2 is the steepest line on this graph.

3 0
3 years ago
Other questions:
  • Which describes uniformitarianism?
    14·1 answer
  • Explain why a cow that touches an electric fence experiences a mild shock
    10·1 answer
  • A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a tota
    10·1 answer
  • In a section of horizontal pipe with a diameter of 3.00 cm the pressure is 5.21 kPa and water is flowing with a speed of 1.50 m/
    14·2 answers
  • The mc002-1.jpgHrxn of formation of carbon dioxide is negative. Which statement is true?
    15·1 answer
  • Which type of force could be used to pull up on a metal paper clip without
    11·1 answer
  • A ball with an initial velocity of 2 m/s rolls for a period of 3 seconds. If the ball is uniformly accelerating at a rate of 3 m
    7·1 answer
  • What should you do if someone faints?
    14·1 answer
  • How can you distinguish wave motion and particle motion?​
    13·2 answers
  • Calculate the “index of refraction” of a medium where the speed of light through it is 1.24 x 108 m/s. Use the GRASS method, wri
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!