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
garik1379 [7]
3 years ago
15

Answer the question plz

Physics
1 answer:
ollegr [7]3 years ago
7 0

Answer:

b and d

Explanation:

You might be interested in
A 675 kg car moving at 15.7 m/s hits from behind another car moving at 9.6 m/s in the same direction. If the second car has a ma
Maslowich

Answer:

?!?!?!?!?!?!

Explanation:

?!?!?!?!?!?!?

3 0
3 years ago
Robin Hood wishes to split an arrow already in the bull's-eye of a target 40 m away.
tamaranim1 [39]

Answer:

5.843 m

Explanation:

suppose that the arrow leave the bow with a horizontal speed , towards he bull's eye.

lets consider that horizontal motion

distance = speed * time

time = 40/ 37 = 1.081 s

arrow doesnot have a initial vertical velocity component. but it has a vertical motion due to gravity , which may cause a miss of the target.

applying motion equation

(assume g = 10 m/s²)

s=ut+\frac{1}{2}*gt^{2}  \\= 0+\frac{1}{2}*10*1.081^{2}\\= 5.843 m

Arrow misses the target by 5.843m ig the arrow us split horizontally

4 0
3 years ago
A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends 30 psi, but it's been a
Rama09 [41]

Answer:

21 psi

Explanation:

The weight of the car is:

W = mg

W = 1000 kg * 9.8 m/s²

W = 9800 N

Divided by 4 tires, each tire supports:

F = W/4

F = 9800 N / 4

F = 2450 N

Pressure is force divided by area, so:

P = F / A

P = (2450 N) / (0.13 m × 0.13 m)

P ≈ 145,000 Pa

101,325 Pa is the same as 14.7 psi, so:

P ≈ 145,000 Pa × (14.7 psi / 101,325 Pa)

P ≈ 21 psi

3 0
3 years ago
How can a wave carry information?
Anon25 [30]
A transmitter “encodes” or modulates messages by varying the amplitude or frequency of the wave – a bit like Morse code. At the other, a receiver tuned to the same wavelength picks up the signal and 'decodes' it back to the desired form

I think it’s A or D
7 0
2 years ago
Read 2 more answers
What kind of system does not allow matter or energy to enter or exit?
Vilka [71]

a closed system does not allow matter or energy to pass through

6 0
3 years ago
Other questions:
  • A rock is rolling down a hill. At position 1, its velocity is 2.0 m/s. Twelve seconds later, as it passes position 2, its veloci
    7·2 answers
  • What are mixtures that have floating particles called?
    7·1 answer
  • 600 J of work is done on a system in a process that decreases the thermal energy of the system by 300 J.
    11·1 answer
  • A sonic boom is caused by _____. a sound-producing object moving toward an observer a sound-producing object overtaking its own
    9·2 answers
  • How to find voltage reading?
    9·1 answer
  • Applications of machine ​
    10·1 answer
  • The word “cumulative” means that something builds on itself. Which example best shows how scientific knowledge is cumulative? A.
    13·1 answer
  • Which of these samples of water has the most internal energy?
    6·1 answer
  • A circus performer wants to land in a net 5 meters to the right of where she will let go of the trapeze. If she is 10 meters abo
    13·1 answer
  • What would be the relative difference between the currents required by a 60W lightbulb and a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!