answer.
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
AURORKA [14]
2 years ago
4

Box A (m = 2.5 kg) is connected by a rope that passes over a frictionless pulley to Box B (m = 5.5 kg), as shown. The coefficien

t of kinetic friction between the box and the ramp is 0.54. Determine the magnitude of the acceleration of the boxes.
Physics
1 answer:
alexgriva [62]2 years ago
5 0
Energy is causing it o stop and slow it down!
You might be interested in
An object of mass m swings in a horizontal circle on a string of length L that tilts downward at angle θ. Find an expression for
VikaD [51]
We know that
g = LcosΘ 
<span>where g, L and Θ are centripetal gravity length, and angle of object
</span><span>ω² = g/LcosΘ </span>
<span>ω = √(g / LcosΘ) </span>
8 0
2 years ago
Read 2 more answers
In batting practice a batter hits a ball that is sitting at rest on top of a post. The ball leaves the post with a horizontal sp
Effectus [21]

Answer:

65.3

Explanation:

W = (1/2)mv^2

W = (1/2)(0.145kg)(30m/s)^2

5 0
2 years ago
Find the time t2 that it would take the charge of the capacitor to reach 99.99% of its maximum value given that r=12.0ω and c=50
defon

Answer:

Explanation:

Given that, .

R = 12 ohms

C = 500μf.

Time t =? When the charge reaches 99.99% of maximum

The charge on a RC circuit is given as

A discharging circuit

Q = Qo•exp(-t/RC)

Where RC is the time constant

τ = RC = 12 × 500 ×10^-6

τ = 0.006 sec

The maximum charge is Qo,

Therefore Q = 99.99% of Qo

Then, Q = 99.99/100 × Qo

Q = 0.9999Qo

So, substituting this into the equation above

Q = Qo•exp(-t/RC)

0.9999Qo = Qo•exp(-t / 0.006)

Divide both side by Qo

0.9999 = exp(-t / 0.006)

Take In of both sodes

In(0.9999) = In(exp(-t / 0.006))

-1 × 10^-4 = -t / 0.006

t = -1 × 10^-4 × - 0.006

t = 6 × 10^-7 second

So it will take 6 × 10^-7 a for charge to reached 99.99% of it's maximum charge

8 0
2 years ago
Please help me with questions 1, 2 and 3. <br> i need a step by step explanation
kifflom [539]

Answer:

1) d

2) 5 m/s

3) 100

Explanation:

The equation of position x for a constant acceleration a and an initial velocity v₀, initial position x₀, time t is:

(i) x=\frac{1}{2}at^2+v_0t+x_0

The equation for velocity v and a constant acceleration a is:

(ii) v=at+v_0

1) Solve equation (ii) for acceleration a and plug the result in equation (i)

(iii) a = \frac{v -v_0}{t}

(iv) x = \frac{v-v_0}{2t}t^2+v_0t + x_0

Simplify equation (iv) and use the given values v = 0, x₀ = 0:

(v) x=-\frac{v_0}{2}t + v_0t= \frac{v_0}{2}t

2) Given v₀= 3m/s, a=0.2m/s², t=10 s. Using equation (ii) to get the final velocity v:v=at+v_0=0.2\frac{m}{s^2} * 10s+3\frac{m}{s}=2\frac{m}{s}+3\frac{m}{s}=5\frac{m}{s}

3) Given v₀=0m/s, t₁=10s, t₂=1s and x₀=0. Looking for factor f = x(t₁)/x(t₂) using equation(i) to calculate x(t₁) and x(t₂):

f=\frac{x(t_1)}{x(t_2)}=\frac{\frac{1}{2}at_1^2 }{\frac{1}{2}at_2^2}=\frac{t_1^2}{t_2^2}=\frac{10^2}{1^2}=\frac{100}{1}

5 0
2 years ago
What represents a new approach to middleware by packaging together commonly used functionality. such as providingprebuilt links
JulijaS [17]

Answer:

B. Enterprise application integration middleware.

Explanation:

Enterprise application integration

is related to middleware technologies. Other developing EAI technologies involve Web service integration, service-oriented architecture, content integration and business processes

Enterprise application integration (EAI) is explained to be the use of technologies and services across an enterprise to enable the integration of software applications and hardware systems. Many proprietary and open projects provide EAI solution support.

4 0
2 years ago
Other questions:
  • A rocket moves through outer space a 12,000 m/s. At this time, how much time would be required to travel the distance from Earth
    6·2 answers
  • A parcel is traveling on a horizontal conveyer belt moving at 1 meter/second. At the end of the conveyor belt, the parcel lands
    9·1 answer
  • An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m.how much work
    5·1 answer
  • With your hand parallel to the floor and your palm upright, you lower a 3-kg book downward. If the force exerted on the book by
    6·2 answers
  • A 91.5 kg football player running east at 2.73 m/s tackles a 63.5 kg player running east at 3.09 m/s. what is their velocity aft
    15·1 answer
  • When you apply the torque equation ∑τ = 0 to an object in equilibrium, the axis about which torques are calculated:
    9·1 answer
  • A uniform beam XY is 100 cm long and weighs 4.0N.The beam rests on a pivot 60 cm from end X. A load of 8.0 N hangs from the beam
    8·1 answer
  • A hot piece of iron is thrown into the ocean and its temperature eventually stabilizes. Which of the following statements concer
    12·1 answer
  • How, if at all, would the equations written in Parts C and E change if the projectile was thrown from the cliff at an angle abov
    12·1 answer
  • A man exerts a force on a large couch by pushing on it. Which of the following must be a true statement about the couch after he
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!