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
xxTIMURxx [149]
3 years ago
12

Can someone pls do this for me for 20 pts

Physics
2 answers:
Ann [662]3 years ago
6 0
You need to delete this question ASAP! You put out your first and last name.
m_a_m_a [10]3 years ago
6 0

Answer:you got your name in that

Explanation:

You might be interested in
Which category of energy originates in the process of photosynthesis?
mojhsa [17]
Solar energy ....................
8 0
3 years ago
Read 2 more answers
A set of pulleys is used to lift a piano weighing 1,000 newtons. The piano is lifted 3 meters in 120 seconds. How much power was
Sergio039 [100]

Answer:

25 watts

Explanation:

Power=work/time

work=force x distance

1000 × 3

=3000 Joules

power= 3000/120

=25 watts

4 0
4 years ago
an ice sheet 5m thick covers a lake that is 20m deep. at what is the temperature of the water at the bottom of the lake?
muminat

Answer:

4°C

Explanation:

Water is densest at 4°C.  Since dense water sinks, the bottom of the lake will be 4°C.

6 0
4 years ago
A batter hits a pop fly straight up. (a) Is the acceleration of the ball on the way up different from its acceleration on the wa
ExtremeBDS [4]

Answer:

a) No. If air resistance is ignored the acceleration of the ball is the same at each point on its flight.

(b). No. As long as the air resistance is negligible, the acceleration of the ball at the top of its flight different from its acceleration just before it lands.

Explanation:

This constant, similar acceleration is called the acceleration due to gravity and it is the acceleration of a body due to the influence of the pull of gravity alone.

Every object on the surface of the earth regardless of its mass is pulled towards the centre of the earth, especially when in flight. Whether flying upwards, or coming downwards, the pull of attraction towards the surface of the earth is the same!

4 0
3 years ago
A person hears sounds with a frequency in the range of about 16 Hz to 20000 Hz. What is the wavelength of sound in air and water
Alex17521 [72]

Answer:

v=f×λ

Explanation:

v=f×λ

v is the speed of sound

f is the frequency of sound

λ is the wavelength

The speed of sound in air and water is different, but the frequency can be calculated from the given range above.

HAVE FUN LEARNING!!!( sorry im just to lazy to get the number so...)

4 0
3 years ago
Other questions:
  • Which is the relationship between photon energy and the color of light?
    7·1 answer
  • Help!!!! Please..... Someone. Problem:
    14·2 answers
  • As the shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at -4.1 m/s^2 as it slows from 9.0 m/
    5·1 answer
  • The force of gravity depends on the mass of objects and the distance between them. TRUE OR FALSE?
    10·1 answer
  • A positive point charge Q is fixed on a very large horizontal frictionless tabletop. A second positive point charge q is release
    9·1 answer
  • a boy throw a ball upward from the top of a cliff 73m high.Calculate the time in which ball will fall on the ground and the velo
    6·1 answer
  • An object is placed a distance of 50 cm from a convex mirror of radius 40 cm. What is the magnification? O 3.5 O 2.5 O 0.3 0.5
    7·1 answer
  • When a student combed his dry hair for a long time, his hair began to stand up. Which of these has MOST LIKELY happened?
    15·1 answer
  • What are genes?
    12·2 answers
  • HELP HELP in order for energy to transform it must be able to do what?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!