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
Mumz [18]
2 years ago
12

A 15-g block of aluminum has a volume of 5.5 cm. what is the density

Physics
1 answer:
Mnenie [13.5K]2 years ago
4 0

Answer: 2.72727272......g/cm3^

Explanation:

D = g/cm^3

soo d = 15/5.5

You might be interested in
A 32-cm-long solenoid, 1.8 cm in diameter, is to produce a 0.30-T magnetic field at its center. If the maximum current is 4.5 A,
daser333 [38]

Answer:

<h2>16,931 turns</h2>

Explanation:

The magnetic field produced is expressed using the formula

B = \frac{\mu_0NI}{L}

B is the magnetic field = 0.30T

I is the current produced in the coil = 4.5A

\mu_0 is the magnetic permittivity in vacuum = 1.26*10^-6Tm/A

L is the length of the solenoid = 32 cm = 0.32 m

N is the number of turns in the solenoid.

Making N the subject of the formula from the equation above;

B = \frac{\mu_0NI}{L}\\\\BL = \mu_0NI\\\\Dividing\ both\ sides \ by \ \mu_0I\\\\\frac{BL}{\mu_0I} =\frac{\mu_oNI}{\mu_0I} \\\\

N = \frac{BL}{\mu_0I}

Substituting the give values to get N;

N = \frac{0.3*0.32}{1.26*10^{-6} * 4.5}\\\\N = \frac{0.096}{0.00000567} \\\\N = 16,931.21

The number of turns the solenoid must have is approximately 16,931 turns

4 0
3 years ago
What scientist shot alpha particles into gold
laila [671]
The Geiger–Marsden experiment(s) (also called the Rutherford gold foil experiment) were a landmark series of experiments by which scientists discovered that every atom contains a nucleus where its positive charge and most of its mass are concentrated
5 0
3 years ago
Read 2 more answers
During an experiment, Ellie records a measurement of 0.0034 m. How would
Goshia [24]

Answer:

(A)   She needs to move the decimal point by 3 places

8 0
3 years ago
According to Boyle’s law, PV= K, what was the volume at the time of the first measurement given the following information? Round
alexandr402 [8]

Answer:

Iam a learning

6 0
3 years ago
A circus act involves a trapeze artist and a baby elephant. They are going to balance on a teeter-totter that is 10 meters long
elena-s [515]

Answer:

Explanation:

Balance point will be achieved as soon as the weight of the baby elephant creates torque equal to torque created by weight of woman about the pivot. torque by weight of woman

weight x distance from pivot

= 500x 5

= 2500 Nm

torque by weight of baby woman , d be distance of baby elephant from pivot at the time of balance

= 2500x d

for equilibrium

2500 d = 2500

d = 1 m

So elephant will have to walk up to 1 m close to pivot or middle point.

6 0
3 years ago
Other questions:
  • (USE THE GRAPH) Vectors B and C and are shown in the graph. Vector B is multiplied by the scalar 92. What angle does the new vec
    7·1 answer
  • As a car heads down a highway traveling at a speed v away from a ground observer, which of the following statements are true abo
    7·1 answer
  • Two students conduct a study to investigate the relationship between forearm length and height. Maria measures the subjects in c
    5·1 answer
  • In a real system of levers, wheels, or pulleys, the AMA is less than the IMA because _____.
    13·2 answers
  • 3. An atom has 11 protons in the nucleus. What is the atomic number? What is the name of this
    11·1 answer
  • The spectrophotometer measures what property of a solution? Group of answer choices
    15·1 answer
  • 7th grade science i mark as brainliest
    8·1 answer
  • Dr. Prometheus wants to describe the attitudes of all 18-year-old Houstonians concerning the legalization of marijuana. She rand
    6·1 answer
  • Quations (3.4) and (3.5) are equivalent expressions for Lagrange's equations.
    12·1 answer
  • During a __________ year period starting at about 4.5 billion years ago, bits and pieces of metal-rich particles, rocks, and ice
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!