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
Andrei [34K]
2 years ago
13

A clarinetist, setting out for a performance, grabs his 3.070 kg clarinet case (including the clarinet) from the top of the pian

o and carries it through the air with an upward force of 25.60 N. Find the case's vertical acceleration. Indicate an upward acceleration as positive and a downward one as negative. Use for =9.810 m/s2 for the acceleration due to gravity.
Physics
1 answer:
Cerrena [4.2K]2 years ago
4 0

Answer:

the vertical acceleration of the case is 1.46 m/s

Explanation:

Given;

mass of the clarinet case, m = 3.07 kg

upward force applied by the man, F = 25.60 N

Apply Newton's second law of motion;

the upward force on the clarinet case = its weight acting downwards + downward force due to its downward accelaration

F = mg + m(-a)

the acceleration is negative due to downward motion from the top of the piano.

F = mg - ma

ma = mg - F

a = \frac{mg - F}{m} \\\\a = \frac{(3.07 \times 9.8) \ - \ 25.6}{3.07} \\\\a = 1.46 \ m/s^2

Therefore, the vertical acceleration of the case is 1.46 m/s²

You might be interested in
What type of clothing is most suitable to facilitate this? A. a pair of pants with a cord B. a flame-resistant pair of pants C.
Tasya [4]

Answer:

A

Explanation:

8 0
3 years ago
The binding of acetylcholine to its receptor at the neuromuscular junction causes the opening of a
Rufina [12.5K]

Answer: opening of the nicotinic acetylcholine receptor channels.

Explanation:

Neuromuscular junction is a special junction formed between a motor neurone and a muscle fibre. The junction is fortified with nerves and receptors that helps in the transmission of signals from the motor neurone to the muscle fibre in order to bring about the desired voluntary movements through muscular contraction.

Nicotinic acetylcholine receptor are activated through the binding of acetylcholine at the neuromuscular junction. This action leads to influx of sodium ions to accomplish endplate potential.

7 0
2 years ago
If the input work on a machine is equal to it's output work. the machine has _____ efficiency.
AleksAgata [21]

Answer:

100% efficiency

Explanation:

the machine has _100%_ efficiency.

(fill in the blank)

7 0
3 years ago
A scooter is accelerated from rest at the rate of 8m/s
algol13

Explanation:

time=Distance/speed

t=32/8

t=4 seconds

8 0
3 years ago
If the distance to a distant galaxy is recorded as 10,000 light years, then light must have been traveling for 5000 years to rea
satela [25.4K]
False false false false
5 0
2 years ago
Read 2 more answers
Other questions:
  • What is friction and how does it affect objects in motion?
    8·2 answers
  • a gas exerts less pressure when it has a a. smaller volume b. lower temperature c. higher temperature d. two of the above
    14·1 answer
  • Which force does not operate at a distance of 1 m?
    10·2 answers
  • As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff ideal sprin
    13·1 answer
  • Playing catch with a friend in a moving train. When you toss the ball in the direction the train is moving, how does the speed o
    12·2 answers
  • A motorbike is travelling with a velocity of 3m/s. It accelerates at a rate of 9.3m/s for 1.8s.
    10·1 answer
  • A block moves along a table at a constant velocity and then rolls off the edge of the table. The forces that should be included
    7·1 answer
  • How does music affect our brain ?
    12·1 answer
  • An object undergoing simple harmonic motion takes 0.40 s to travel from one point of zero velocity to the next such point. The d
    14·1 answer
  • 4. A massless spring hangs from the ceiling, and a mass is hung from the bottom of it. The mass is supported
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!