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
Lena [83]
3 years ago
14

A toy dart gun generates a dart with a momentum of 140 kg*m/s and a

Physics
2 answers:
irinina [24]3 years ago
6 0

Answer:

35 kg

Explanation:

From the question,

Momentum (I) = mass (m) × velocity (v)

I = m×v................... Equation 1

Where m = mass, v = velocity

make m the subject of the equation

m = I/v.................... Equation 2

Given: I = 140 kgm/s, v = 4 m/s

Substitute these values into equation 2

m = 140/4

m = 35 kg

Hence the mass of the dart is 35 kg

lara [203]3 years ago
5 0

Answer:

the answer is .035 kg.

Explanation:

You just divide the momentum by the velocity to get the mass. Hope this helps.

You might be interested in
1. Part A
Reika [66]

Answer:

B. 2. A baseball was hit by a bat and now flying through the air.

Explanation: A baseball that is hit by a bat has a larger velocity, due to this the amount of kinetic energy is high.

3 0
3 years ago
Is smoke diffusion??
Ivanshal [37]
Diffusion<span> is the spread of particles through random motion from regions of high concentration to regions of lower concentration. Because </span>diffusion<span> works without barriers, when </span>smoke<span> is emitted into the air, it can easily travel to surrounding areas.  hope this can help you ^_^ </span>
3 0
3 years ago
Read 2 more answers
Which type of elements are likely to have no electical charge at all
boyakko [2]

Answer:

Noble gas element

Explanation:

because Noble gas element can neither loose nor gain electrons

6 0
3 years ago
Read 2 more answers
)If a force of 5.00 N is needed to open a 90.0 cm wide door when applied at the edge opposite the hinges, what force must be app
masha68 [24]

Answer:

A force of 12.857 newtons must be applied to open the door.

Explanation:

In this case, a force is exerted on the door, a moment is performed and the door is opened. If moment remains constant, the force is inversely proportional to distance respect to axis of rotation passing through hinges. That is:

F \propto \frac{1}{r}

F = \frac{k}{r} (Eq. 1)

Where:

F - Force, measured in newtons.

k - Proportionality ratio, measured in newton-meters.

r - Distance respect to axis of rotation passing through hinges, measured in meters.

From (Eq. 1) we get the following relationship and clear the final force within:

F_{A}\cdot r_{A} = F_{B}\cdot r_{B}

F_{B}=\left(\frac{r_{A}}{r_{B}} \right)\cdot F_{A}(Eq. 2)

Where:

F_{A}, F_{B} - Initial and final forces, measured in newtons.

r_{A}, r_{B} - Initial and final distances, measured in meters.

If we know that F_{A} = 5\,N, r_{A} = 0.9\,m and r_{B} = 0.35\,m, then final force is:

F_{B}= \left(\frac{0.9\,m}{0.35\,m} \right)\cdot (5\,N)

F_{B} = 12.857\,N

A force of 12.857 newtons must be applied to open the door.

3 0
3 years ago
Most photographs will be made using a shutter speed of 1/60 or faster.
kari74 [83]
True

Most photographs will be made using a shutter speed of 1/60 or faster.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Distance (m)
    8·1 answer
  • An elevator moves from rest<br> to 2 m/s over 8 seconds. What<br> is the elevator's acceleration?
    14·1 answer
  • Consider the free body diagram. If the sum of the tension forces is equal to the force of gravity, which description BEST appli
    12·2 answers
  • Suppose you are in an elevator. As the elevator starts upward, its speed will increase. During this time when the elevator is mo
    7·1 answer
  • A 100 cm3 block of lead weighs 11N is carefully submerged in water. One cm3 of water weighs 0.0098 N.
    12·1 answer
  • A transformation of ΔSTV results in ΔUTV. Which transformation maps the pre-image to the image?
    13·2 answers
  • A construction worker uses an electrical device to attract fallen nails and sharp objects from a construction site. What is caus
    10·1 answer
  • Forces at a Distance
    14·1 answer
  • PLEASE HELP I WILL MARK YOU
    13·1 answer
  • What is velocity ???​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!