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
Murrr4er [49]
3 years ago
15

Which explicit definition matches this sequence? an={10,if n=1an−1−4,if n>1 A. an = 10 + 4(n – 1) B. an = 10 – 4(n – 1) C. an

= 4 + 10(n – 1) D. an = 4 – 10(n – 1)
Physics
1 answer:
Step2247 [10]3 years ago
3 0

Answer:

Añ=10+4(n-1)

Explanation:

You might be interested in
In order to cool 1 ton of water at 20°C in an insulated tank, a person pours 140 kg of ice at –5°C into the water. The specific
salantis [7]

Answer:

T = 6.31 ^0 C

Explanation:

1 ton = 907.2 kg

so here heat given by water = heat absorbed by the ice

so by energy balance we will have

Q_1 = Q_2

mL + ms\Delta T_1 + ms\Delta T_2 = ms\Delta T_3

so we have

140(2.11)(5) + 140(333.7) + 140(4.18)(T) = 907.2(4.18)(20 - T)

48195 + 585.2 T = 75841.9 - 3792.1 T

T = \frac{27646.92}{4377.3}

T = 6.31 ^0 C

7 0
3 years ago
How much work would it take to push two protons very slowly from a separation of 2.00×10−10m (a typical atomic distance) to 3.00
laiz [17]

Answer:

Work= -7.68×10⁻¹⁴J

Explanation:

Given data

q₁=q₂=1.6×10⁻¹⁹C

r₁=2.00×10⁻¹⁰m

r₂=3.00×10⁻¹⁵m

To find

Work

Solution

The work done on the charge is equal to difference in potential energy

W=ΔU

Work=U_{1}-U_{2}\\ Work=-kq_{1}q_{2}[\frac{1}{r_{2}}-\frac{1}{r_{1}} ]\\Work=(-9*10^{9})*(1.6*10^{-19} )^{2}[\frac{1}{3.0*10^{-15} }-\frac{1}{2*10^{-10} } ]\\  Work=-7.68*10^{-14}J

4 0
4 years ago
Ed biked home from school in 400 seconds. His home is located 2000 m south of the school. What was his velocity?
Naily [24]

<em>answer =  5 \:  \: metre \: per \: second\\ distance = 2000 \: m \\ time = 400 \: seconds \\ velocity =  \:  \frac{distance \:t ravelled}{time \: taken}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \frac{2000}{400}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 5 \: metre \: per \: second \\ hope \: it \: helps</em>

7 0
3 years ago
Observe and compare the forces acting on the turtle and the cat.
Pepsi [2]

Answer:

The forces are balanced on both animals because they are not moving

More importantly than not moving is not <u>accelerating.</u>

Explanation:

5 0
3 years ago
SI units are used for the scientific works,why?​
a_sh-v [17]

Answer:

SI is used in most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion

8 0
3 years ago
Other questions:
  • An object travels with velocity v = 4.0 meters/second and it makes an angle of 60.0° with the positive direction of the y-axis.
    12·1 answer
  • A hummingbird can flutter its wings 4,800 times per minute. What is the frequency of wing flutters per second?What is the period
    15·2 answers
  • What are scientific units for describing an object that is acclerating
    14·2 answers
  • How are ice liquid water and water vapor different from each other?
    8·2 answers
  • A bicyclist of mass 68 kg rides in a circle at a speed of 3.9 m/s. If the radius of the circle is 6.5 m, what is the centripetal
    8·1 answer
  • What is 1 + 1 - 1 + 2 - 1 - 1<br>This is just to get answers
    15·2 answers
  • A water bug is suspended on the surface of a pond by surface tension (water does not wet the legs). The bug has six leg, and eac
    11·1 answer
  • A thin, uniform stick of length 1.9 m and mass 3.1 kg is pinned through one end and is free to rotate. The stick is initially ha
    7·1 answer
  • A flagpole is 6.8m tall. A cable is attached from ground to the top of the pole such that it makes a 66 degree angle with the po
    10·1 answer
  • 6. The bat hits a ball. What is the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!