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
Sidana [21]
3 years ago
13

NEED HELP PLEASE 15 POINTS PLEASEE NEED HELP

Physics
2 answers:
Ostrovityanka [42]3 years ago
5 0

Answer:

I wish I knew

Explanation:

Reil [10]3 years ago
5 0

Answer: The third one

Explanation:

You might be interested in
Diego rivera's mural for the lobby of the rca building was destroyed because
forsale [732]
It included a picture of Vladimir Lenin
7 0
3 years ago
Which scenario describes a systematic error?
Tamiku [17]

Answer:

The answer is C, a thermometer reads 0.1 degree higher than it should.

8 0
4 years ago
An astronaut holds a rock 100m above the surface of Planet X . The rock is then thrown upward with a speed of 15m/s , as shown i
Butoxors [25]

Answer:5 m/s^{2}

Explanation:

The described situation is is related to vertical motion (and free fall). So, we can use the following equation that models what happens with this rock:

y=y_{o}+V_{o}sin\theta t-\frac{1}{2}gt^{2} (1)

Where:

y=0m is the rock's final height

y_{o}=100 m is the rock's initial height

V_{o}=15 m/s is the rock's initial velocity

\theta=90\° is the angle at which the rock was thrown (directly upwards)

t=10 s is the time

g is the acceleration due gravity in Planet X

Then, isolating g and taking into account sin(90\°)=1:

g=(-\frac{2}{t^{2}})(y-y_{o}-V_{o}t) (2)

g=(-\frac{2}{(10 s)^{2}})(0 m-100 m-(15 m/s)(10 s)) (3)

Finally:

g=5 m/s^{2} (4) This is the acceleration due gravity in Planet X

7 0
3 years ago
Find the y-component of this vector:73.3,12.0m. Remember, angles are measured from the +x axis.
Rainbow [258]

Answer:

11.5 meters

Explanation:

73.3°, 12.0m

The y-component is the magnitude of the vector times the sine of the angle measured from the +x axis.

y = 12.0 sin (73.3°)

y = 11.5

The y-component is 11.5 meters.

7 0
3 years ago
Choose a tool or a device you can investigate. It must not have any source of power other than the person using it. It must use
andrew11 [14]

Answer:

Wheelbarrows, fishing rods, shovels, brooms, arms, legs, boat oars, crow bars, and bottle openers are all examples of levers. Levers may be one of the most used simple machine. As with all simple machines like the lever, they are designed to help make work easier to do.

Explanation:

8 0
3 years ago
Other questions:
  • Forces contribute to the net force on a car rolling down a ramp
    9·1 answer
  • Your friend Saul wears glasses. One day you notice that his eyes look larger through his glasses.
    12·1 answer
  • How to produce radio wave?
    7·2 answers
  • How does the pupillary response prevent injury? What would happen without it?
    8·2 answers
  • The major horizontal surface on an airplane that provides lift.​
    5·1 answer
  • Jenni wants to start a print shop making specialty papers and cards. Which economic question has she answered?
    14·2 answers
  • In 1923, the United States Army (there was no United States Air Force at that time) set a record for in-flight refueling of airp
    13·1 answer
  • Where would you most likely find benthos organisms
    10·2 answers
  • 20 cubic inches of a gas with an absolute pressure of 5 psi is compressed until its pressure reaches 10 psi. What's the new volu
    5·2 answers
  • Which term describes what a british thermal unit measures?.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!