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
IgorC [24]
2 years ago
10

A bullet has a mass of 0.06 kg. Starting from rest, after the gun's trigger is pulled, a constant force acts on the bullet for t

he next 0.025 seconds until the bullet leaves the barrel of the gun with a speed of 992 m/s.
What is the change in momentum of the bullet?
Physics
1 answer:
artcher [175]2 years ago
6 0

The change in momentum of the bullet : 59.52 kg m/s

<h3>Further explanation</h3>

Given

m=0.06 kg

Δt=0.025 s

vo=0(from rest)

vt= 992 m/s

Required

The change in momentum

Solution

The change in momentum  = ΔP

ΔP  =m(vt-vo)

ΔP =0.06(992-0)

ΔP =59.52 kg m/s

You might be interested in
How high can a 40 N force move a load, when 395 J of work is done?
Juliette [100K]

Answer:

9.875

Explanation:

w=f×s

395=40×s

make s the subject of the formula

s=395/40

=9.875

7 0
3 years ago
At an air show, a stunt pilot performs a vertical loop-the-loop in a circle of radius 3.63 x 103 m. During this performance the
san4es73 [151]

Answer:

189 m/s

Explanation:

The pilot will experience weightlessness when the centrifugal force, F equals his weight, W.

So, F = W

mv²/r = mg

v² = gr

v = √gr where  v = velocity, g = acceleration due to gravity = 9.8 m/s² and r = radius of loop = 3.63 × 10³ m

So, v = √gr

v = √(9.8 m/s² × 3.63 × 10³ m)

v = √(35.574 × 10³ m²/s²)

v = √(3.5574 × 10⁴ m²/s²)

v = 1.89 × 10² m/s

v = 189 m/s

5 0
3 years ago
Similar to what you see in your textbook, you can generally omit the multiplication symbol as you answer questions online, excep
lidiya [134]

Answer:

ma= ma

m⋅a = m⋅a

And equivalently:

am=ma

a⋅m = m⋅a

Explanation:

Question

Assuming this question "Similar to what you see in your textbook, you can generally omit the multiplication symbol as you answer questions online, except when the symbol is  needed to make your meaning clear. For example, 1*10^5 is not the same as 110^5 . When you need to be explicit, type * (Shift + 8) to insert the multiplication operator. You will see a multiplication dot (⋅) appear in the answer box. Do not use the symbol x. For example, for the expression ma,

typing m⋅a would be correct, but mxa would be incorrect".

Solution to the problem

For this case we want to write a expression for ma, and based on the previous info we can write:

ma= ma

m⋅a = m⋅a

And equivalently:

am=ma

a⋅m = m⋅a

But is not correct do this:

mxa=mxa

axm = mxa

8 0
3 years ago
Read 2 more answers
Stars form from clouds of gas and dust. As a protostar gravitationally contracts within its parent cloud, "conservation of angul
vredina [299]

Answer:

D) True. the protostar rotates more quickly.

Explanation:

If the system is isolated, the angular momentum must be retained.

Initial

        L₀ = I w₀

Final

       L_{f} = I_{f}  w_{f}

      L₀ = L_{f}

      I w₀ = I_{f}w_{f}

     w_{f}  = I /I_{f} w₀

In general, the radius of the cloud decreases significantly to form the star, the moment of inertia must decrease, so the angular velocity must increase

Let's examine the answers

A) False. The opposite happens

B) False. Speed ​​changes

C) False. For this there must be an external force, which does not exist

D) True. You agree with the above

5 0
3 years ago
Battery life is what distinguishes one type of mobile computer from another.
BlackZzzverrR [31]
I think the statement is false. It is not only the battery life that would distinguish one type of mobile computer from another. There are other aspects that would characterize every mobile computer. It could be the brand, the size, the operating system, the hardware specifications like the RAM, processor and the video card. Every mobile computer would vary depending on the brand, model and intended use.
8 0
3 years ago
Other questions:
  • What quantity is multiplied by the hydraulic lift system of a dump truck?
    15·2 answers
  • Teams A and B are in a tug-of-war challenge. Team A wins the challenge. What can be said about Team A?
    14·1 answer
  • What are the four factors that influence how fast the water will flow
    10·1 answer
  • a. Convert 21.0 cm to inches. Show your dimensional analysis setup. b. Convert 29.7 cm to inches. Show your dimensional analysis
    11·1 answer
  • 3
    12·1 answer
  • How do objects and substances in motion have kinetic energy
    11·1 answer
  • Hydrogen gas was cooled from 150c to 50c. its new volume is 75.0 ml. what was its original volume
    5·1 answer
  • What volume of water at O°C can a freezer make into ice cubes in 1.0 h, if the coefficient of performance of the cooling unit is
    14·1 answer
  • What is the net displacement of the particle between 0 seconds and 80 seconds
    9·1 answer
  • Please answer the following question
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!