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
Luba_88 [7]
3 years ago
7

A 0.25 kg arrow with a velocity of 12 m/s to the west strikes and pierces the center of a 6.8 kg target. What is the final veloc

ity of the combined mass
Physics
1 answer:
Mademuasel [1]3 years ago
4 0

Answer:20/47 meter per second

Explanation:

Mass of arrow(ma)=0.25kg

Velocity of arrow(va)=12m/s

Mass of target(mt)=6.8kg

Velocity of target(vt)=0 since target is at rest

Conservation of linear momentum says that :

maxva+mtxvt=(ma+mt)V

V=(maxva+mtxvt)/(ma+mt)

V=(0.25x12+6.8x0)/(0.25+6.8)

V=3/(7.05)

V=20/47 meter per second

You might be interested in
Which part of the brain serves to regulate the endocrine system?
Debora [2.8K]

Answer:

hypothalamus

Explanation:

The hypothalamus is known as the master switchboard because it's the part of the brain that controls the endocrine system. The pituitary gland, which hangs by a thin stalk from the hypothalamus, is called the master gland of the body because it regulates the activity of the endocrine glands.

7 0
3 years ago
Read 2 more answers
A machine is currently set to a feed rate of 5.921 inches per minute (IPM). Te machinist changes this setting to 6.088 IPM. By h
lukranit [14]

Answer:

By 16.7% or 0.167 IPM

Explanation:

Substracting the final IPM (6.088) to the initial IPM (5.921) gives us the net difference, which is how much did it increase in IPM. Multiplying this number by 100 gives us the percentual increase in the feed rate.

4 0
2 years ago
Read 2 more answers
Please complete it if you know the answer. "The active region of a transistor is for.........
zubka84 [21]

Answer:

the active region is bound by cutoff region and saturation or power dissipation region.

Explanation:

5 0
3 years ago
Can a solution be separated by filtration?​
alexgriva [62]

Answer:

Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )

Explanation:

Listo!

8 0
3 years ago
Read 2 more answers
Help me!!!
Elena-2011 [213]

Answer:

n a static situation the membrane has a charge distribution of −2.5 × 10 −6 C/m 2 on its inner surface and +2.5 × 10 −6 C/m 2 on its outer surface. Draw a diagram of the cell and the surrounding cell membrane. Include on this diagram the charge distribution and the corresponding electric field.

8 0
3 years ago
Other questions:
  • 1.5kj of energy are used every second by a microwave oven, what is the power rating of the oven?
    15·2 answers
  • Density
    7·2 answers
  • A rock exerts 5000 Pa of pressure on the ground. If the rock weighs 250 N, how much area is in contact with the ground?
    15·2 answers
  • What tool is used to determine the mass of an object?
    7·1 answer
  • The source of all magnetism is. A. tiny pieces of iron. B. tiny domains of aligned atoms. C. Ferromagnetic materials. D. moving
    6·2 answers
  • Two blocks with mass M and 3M on a horizontal frictionless surface are pushed together and compress a spring of negligible mass
    7·1 answer
  • . A car going 50 m/s accelerates to pass a truck. Five seconds later the car is going 80m/s. Calculate the acceleration of the c
    12·1 answer
  • State two devices that transfer heat out of a cool environment into a warm environment​
    10·1 answer
  • A student determines a value for a force using the formula F = k I l.
    15·1 answer
  • which of the following instruments measures air pressure? group of answer choices barometer hygrometer radiometer thermometer
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!