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
tamaranim1 [39]
3 years ago
7

Which metal works best to displace hydrogens from acid?

Physics
1 answer:
egoroff_w [7]3 years ago
5 0
Lead is answer i think
You might be interested in
Which of the following is a characteristic of digital data?
Westkost [7]

Answer:

duplication being slightly more expensive.

Explanation:

3 0
3 years ago
When you take your 1900-kg car out for a spin, you go around a corner of radius 55 m with a speed of 15 m/s. The coefficient of
pentagon [3]

Answer:

7772.72N

Explanation:

When u draw your FBD, you realize you have 3 forces (ignore the force the car produces), gravity, normal force and static friction. You also realize that gravity and normal force are in our out of the page  (drawn with a frame of reference above the car). So that leaves you with static friction in the centripetal direction.

Now which direction is the static friction, assume that it is pointing inward so

Fc=Fs=mv²/r=1900*15²/55=427500/55=7772.72N

Since the car is not skidding we do not have kinetic friction so there can only be static friction. One reason we do not use μFn is because that is the formula for maximum static friction, and the problem does not state there is maximum static friction.

7 0
3 years ago
Which form of radiation is used to directly INCREASE the temperature of water in a nuclear reactor?
LuckyWell [14K]
The answer would be D because is the strongest form of radiation 
6 0
3 years ago
Read 2 more answers
A trombone has a variable length. When a musician blows into the mouthpiece and causes air in the tube of the horn to vibrate, t
Lilit [14]

Answer:

The frequency increases.

Explanation:

When the Musician draws the slide in the length of the horn gets shorter, which causes a decrease in the wavelength. A decrease in the wave length results in an increase in frequency.

Note:

The diameter of the horn has an effect on frequency, so a wider horn is effectively a long horn - open end correction ( distance between the the antinode and the open end of a pipe).

Frequency also depends on how hard the musician blows the trombone. The musician can change the frequency with the lip pressure being applied.

6 0
3 years ago
Which of the following best describes a completely elastic collision?
IRISSAK [1]
The kinetic energy before equals K after
3 0
3 years ago
Other questions:
  • 1 . A farmer moves along the boundary of his rectangular field of side 10m x 20m . farmer covers 1m in 1sec . what will be the m
    8·1 answer
  • A boy and a girl are riding a merry- go-round which is turning ata constant rate. The boy is near the outer edge, while a girl i
    10·1 answer
  • One heater uses 310 W of power when connected by itself to a battery. Another heater uses 180 W of power when connected by itsel
    14·2 answers
  • If atmospheric pressure on a certain day is 749 mmhg, what is the partial pressure of nitrogen, given that nitrogen is about 78%
    14·1 answer
  • A cross-country skier can complete a 7.5 km race in 45 min. What is the skier’s average speed?
    9·2 answers
  • The weight of an object is the force pulling the object:
    13·1 answer
  • PLEASE HELP I WILL GUVE BRAINLY
    14·1 answer
  • 2 t of ferrous scrap at a temperature of 20 degrees is heated to the melting point and melted. How much to consume?
    14·1 answer
  • A motor is used to pump water from a depth of 5m to fill a volume of 10cubic meter in 5 min . If 50 percent of the power is wast
    11·1 answer
  • What is a wave in sound and light
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!