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
Greeley [361]
3 years ago
12

A bus accelerates at -0.5 m/s2 for 12.5 seconds . If the bus had an initial speed of 31 m/s, what is its new speed? A. 12.25m/s

B. 37.25m/s C. 24.75m/s D. 6.25m/s
Physics
1 answer:
KonstantinChe [14]3 years ago
4 0

Answer:

37.5m/s

Explanation:

a=(v-u)/t

0.5 = (v - 31) / 12.5

v - 31 = 0.5 x 12.5

v - 31 = 6.25

V = 6.25 + 31

v = 37.25m/s

You might be interested in
100 J of work in 10 seconds
HACTEHA [7]
The average power is 10 watts. What's the question ?
7 0
4 years ago
A cello string vibrates in its fundamental mode with a frequency of 335 1/s. The vibrating segment is 28.5 cm long and has a mas
Inga [223]

Answer:

The tension in string is found to be 188.06 N

Explanation:

For the vibrating string the fundamental frequency is given as:

f1 = v/2L

where,

f1 = fundamental frequency = 335 Hz

v = speed of wave

L = length of string = 28.5 cm = 0.285 m

Therefore,

v = f1 2L

v = (335 Hz)(2)(0.285)

v = 190.95 m/s

Now, for the tension:

v = √T/μ

v² = T/μ

T = v² μ

where,

T = Tension

v = speed = 190.95 m/s

μ = linear mass density of string = mass/L = 0.00147 kg/0.285 m = 5.15 x 10^-3 kg/m

Therefore,

T = (190.95 m/s)²(5.15 x 10^-3 kg/m)

<u>T = 188.06 N</u>

4 0
3 years ago
Read 2 more answers
A copper wire has a square cross section 2.1 mm on a side. The wire is 4.3 m long and carries a current of 3.6 A. The density of
aleksley [76]

Explanation:

Below is an attachment containing the solution.

4 0
3 years ago
Which statement describes a scientific law
Olegator [25]

The Earth is a sphere is a statement to describe a scientific law

8 0
3 years ago
A patient has an ongoing history of cancer. She has a tumor in the abdominal region, and has been undergoing treatment for it. T
Vadim26 [7]

Answer:

the answer is at the BOTTOM OF THEIR QUESTION

Explanation:

IT IS CORRECT BTW

6 0
3 years ago
Other questions:
  • If a ball is rolling across a floor at a constant speed is it accelerating
    10·1 answer
  • What is the amount of heat, in Sl units, necessary to melt 1 lb of ice?
    5·1 answer
  • Why do you think the outer planets have such extensive systems of rings and moons, while the inner planets do not?
    5·1 answer
  • A 0.850 kg mass is placed on a
    14·1 answer
  • A wagon wheel consists of 8 spokes of uniform diameter, each of mass ms and length L cm. The outer ring has a mass mring. What i
    6·1 answer
  • How much kinetic energy does a person of mass 50kg running at 3m/s have? Provide
    13·1 answer
  • Highway transportation officials are trying to determine if the average speed on Archer road is above 45mph, the post speed limi
    9·1 answer
  • A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal. What must be true about force
    10·1 answer
  • What are possible units for impulse? Check all that apply.
    13·1 answer
  • If B vectos, is added A vectos under a what
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!