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
8_murik_8 [283]
2 years ago
7

Question 1 of 20

Physics
2 answers:
jolli1 [7]2 years ago
5 0

Answer:

B

Explanation:

notka56 [123]2 years ago
4 0

Answer:

B. The magnet has magnetized the right side of the block.

Explanation:

a pe x

You might be interested in
A well hole having a diameter of 5 cm is to be cut into the earth to a depth of 75 m. Determine the total work (in joules) requi
guapka [62]

Answer:

total work is 99.138 kJ

Explanation:

given data

diameter = 5 cm

depth = 75 m

density = 1830 kg/m³

to find out

the total work

solution

we know mass of volume is

volume = \frac{\pi}{4} d^2 dx

volume = \frac{\pi}{4} d^2 1830 dx

so

work required to rise the mass to the height of x m

dw = \frac{\pi}{4} d^2 1830 gx dx

so total work is integrate it with 0 to 75

w = \int\limits^{75}_{0} {\frac{\pi}{4} d^2 1830 gx dx}

w = \frac{\pi}{4} × 0.05² × 1830× 9.81× (\frac{x^2}{2})^{75}_0

w = 99138.53 J

so total work is 99.138 kJ

6 0
3 years ago
A 15 cm3 block of gold weighs 2.8 N. It is carefully submerged in a tank of mercury. One cm3 of mercury weighs 0.13 N.
BaLLatris [955]
The density of gold is  2.8 N / 15 = 0.18 units
The density of mercury is 0.13/1 = 0.13 units

Since the density of gold is more than density of mercury, it will sink.
Since the gold will sink, it will displace mercury, but less than its own volume
5 0
3 years ago
Explain whether there can be forces act-
Xelga [282]

Technically friction is acting on the car because it is still rubbing against the street and gravity is pulling the car down preventing it from floating??? lol

5 0
2 years ago
3.Three resistors of 25.0Ω, 30.0Ω, and 40.0Ω are in a series circuit with a 6.0-volt battery. What is the current in the circuit
AURORKA [14]

Answer:

Current = 0.063 Amperes

Explanation:

Let the three resistors be R1, R2, and R3 respectively.

Given the following data;

R1 = 25.0Ω,

R2 = 30.0Ω

R3 = 40.0Ω

Voltage = 6 Volts

First of all, we would determine the equivalent or total resistance;

Total resistance (in series) = R1 + R2 + R3

Total resistance = 25.0Ω + 30.0Ω + 40.0Ω

Total resistance = 95 Ω

Next, we find the current flowing through the circuit;

Voltage = current * resistance

Substituting into the formula, we have;

6 = current * 95

Current = 6/95

Current = 0.063 Amperes

5 0
3 years ago
The electromagnetic wave that CT scans are based on is called a
kherson [118]
X-ray)
because Electromagnetic waves are in act
6 0
3 years ago
Other questions:
  • Which describes energy changes during nuclear fission?
    7·2 answers
  • At what point in its swing is potential energy a maximum?<br> E<br> B<br> D<br> A<br> C
    13·1 answer
  • A boy with a mass of 30kg rides a merry-go round with a radius of 1.5 meters and a velocity of 0.38 m/s. What is the centripetal
    9·1 answer
  • A 15.0 kg medicine ball is thrown at a velocity of 10.0 m/s to a 60.0 kg person who is a rest on ice. The person catches the bal
    8·2 answers
  • It takes a photon 8 minutes and 25 seconds ro reach earth. What is the distance (labeled 1 au) in meter between the sun and eart
    13·1 answer
  • Help pls, answer for brainlist
    6·1 answer
  • What it the direction of the weight or force of gravity?
    12·1 answer
  • At what temperature is water the most compacted?
    6·1 answer
  • A softball is hit into the outfield during a game. The initial velocity is 33.52 m/s, and the ball is hit at an angle of 27°. Ho
    10·1 answer
  • Which image shows a nonrenewable resource?<br><br> sun<br> fire<br> can<br> plant
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!