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
Tanya [424]
3 years ago
10

CALCULATE: Ken is a bicyclist. He is moving from point C to point D up a hill. His starting velocity is 8m/s east and 1 second l

ater, his final velocity is at 7m/s east. What is his average acceleration? HINT: use the acceleration formula. A. 1 m/s^2. B. 7.5 m/s^2east. C. -1m/s^2 east. D. 10 m/s^2east.
Physics
1 answer:
tatiyna3 years ago
5 0

Answer:

C. -1m/s² east

Explanation:

starting velocity u= 8m/s

final velocity  v=7m/s

time t=1second

we know,

average acceleration=(v-u)/t

                                   ={ (7-8)/1 } m/s²

                                   =(-1/1 ) m/s²

                                    =-1 m/s²

the result is negative because his  final velocity is less than  starting velocity. That means there will be deceleration instead of acceleration.

You might be interested in
Lab: newton's laws of motion assignment: lab report
poizon [28]

Newton's motion laws state that if an object is at rest or in movement, it will tend to maintain its basal state.

<h3>What are Newton's motion laws?</h3>

Newton's motion laws are a set of scientific statements aimed at explaining the physical property of movement.

These laws explain why objects in movement tend to maintain the same velocity for a short period of time.

In conclusion, Newton's motion laws state that if an object is at rest or in movement, it will tend to maintain its basal state.

Learn more about Newton's motion laws here:

brainly.com/question/10454047

#SPJ1

8 0
2 years ago
What is heart sound?
Dafna11 [192]

Answer:

its the sound that a heart produces when beating, this can help doctors detect abnormalities

6 0
3 years ago
Read 2 more answers
A laser beam with a frequency of 180 Hz forms an 8 m standing wave with 10 nodes.
DIA [1.3K]

Answer:33

Explanation:

F = frequency

N =  Node count

w = wave lenght

v = wave velocity

L = distance wave traveled

First find wave length of laser

w = (2/(N))*(L)

w = (2/(10))*(8)

w = 1.6

then using (w), find velocity

V =  (w)(F)

V = (1.6)*(108)

V = 288

Plug in V and the new frequency to solve for new node count

F = NV/2L

(600) = (N)*(288) / 2 * (8)

(N) = 33.33

there are 33 nodes

8 0
3 years ago
552000 in scientific notation
LUCKY_DIMON [66]
5.52 × 10 to the 5th power (100000)  . In scientific notation you need to have a decimal numver times 10 to the power of something so you can divide 552000 by 10  5  times. So in order to get 552000 you need to have 10 to the 4th power and 5.52
4 0
3 years ago
GIVING BRAINLIEST PLEASE HELP ME!!!
kumpel [21]

Answer:

I'm Pretty sure the answer your looking for is C

4 0
3 years ago
Other questions:
  • A block of wood 3.0 cm on each side has a mass of 27g. what is the density of this block?
    10·1 answer
  • If a vector a - b = 2c, a + b = 4c and c = 3i + 4j,find a and b
    13·1 answer
  • What is the strength of the electric field 0.020 m from a 12 uc charge?
    14·1 answer
  • A searchlight is 210 ft from a straight wall. As the beam moves along the​ wall, the angle between the beam and the perpendicula
    7·1 answer
  • The pressure exerted by a gas on its container is directly proportional to ________.
    9·1 answer
  • A spring (k = 190 N/m) is fixed at the top of a frictionless plane inclined at angle θ = 33 °. A 1.0 kg block is projected up th
    10·1 answer
  • Heat is transferred in three ways from one place to another. The mechanism of heat transfer whereby atoms or molecules of matter
    12·1 answer
  • Chris is about to do an experiment to measure the density of water at several temperatures. His teacher has him prepare and sign
    12·2 answers
  • In a ballistics test, a 28-g bullet pierces a sand bag that is 30cm thick. If the initial bullet velocity was 55 m/s and it emer
    14·1 answer
  • Electrical energy is used to turn the blades of a fan. The amount of energy transformed is seen here : 750 J electrical energy i
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!