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
e-lub [12.9K]
3 years ago
6

Please give an answer that is coherent

Physics
1 answer:
Semmy [17]3 years ago
6 0

Answer:

480

Explanation:

resistance equals to potential difference divide by electric current

120÷0.25

=480

You might be interested in
Frost wedging happens when _____.
KiRa [710]

Answer: water freezes inside a rock, causing it to break

Weathering is a natural process in which the rocks break into pieces or sediments by the action of wind, water and chemical agents. Frost wedging is a physical weathering process. It occurs in an area where temperature fluctuations occurs due to change in the climatic conditions. This occurs due to rapid heating and cooling. The rocks lying in a cold environment, the water residing in the rocks gets freezed. The water in ice form that is solid form acquire more space than in liquid form, therefore, the developed ice will affect the physical structure of the rock. The formation of ice results in the development of break or crack in the rock typically in the shape of a wedge and thus the phenomena is called as frost wedging.

Hence, frost wedging happens when water freezes inside a rock, causing it to break.

8 0
3 years ago
The heat required to melt a piece of copper is (82 x 10 ^5 J). The heat of fusion of copper is (2.05×10 ^5 J/ kg). What is the m
Musya8 [376]

Answer:

Explanation:

Givens

Heat of Fusion = 2.05 * 10^5 J / kg      watch the units.

Heat to actually melt the copper = 82 10^5 J

Formula

Mass of copper = Heat / Heat of Fusion

Solution

Mass of copper = 82*10^5 J / (2.05 * 10^5 J / kg)

Mass of copper = 40 kg

Notice that the kg is in the denominator of the second fraction. The rules of fractions would tell you the 1/1 / / 1 /kg . You take the right fraction and turn it upside down and multiply. 1 / 1 * kg/1 = 1* kg / 1*1 which is just kg.

Answer 40 kg of copper

4 0
2 years ago
How many shots does one get when he fouls a shooter? (basketball)
Tamiku [17]

Answer:

Depends on where he was fouled

If it is beyond the 3 pt line, then it is 3

If it is within the 2 pt line, then it is 2

I hope that helps :)

Explanation:

Plz mark B R A I N L I E S T

4 0
3 years ago
A âsleeping policemanâ is a bump placed in the road to restrict the speed of cars. What radius of curvature should the bump have
asambeis [7]

To solve this problem, the concepts related to the balance of forces must be applied. In this case the two forces that must be in balance are the Weight and the centripetal force. Both forces are derived from Newton's second law, one of the linear movement and the other of the angular movement. The centripetal force is given by the function

F_c = \frac{mv^2}{R}

Here,

m = mass

v =Velocity

R = Radius

And the force product of the weight is given under the function

F_w =mg

Here,

m = Mass

g = Gravity

As both forces are in balance we will have

\sum F =0

F_w - F_c = 0

F_w = F_c

mg = \frac{mv^2}{R}

R = \frac{v^2}{g}

Speed would be

V = 40km/h (\frac{1000m}{1km})(\frac{1h}{3600s})

V = 11.11m/s

Replacing

R = \frac{11.11^2}{9.8}

R = 12.59m

The radius must be 12.6m

5 0
3 years ago
Developing a question for appointments
AlexFokin [52]

Explanation:

how can I help you that?

8 0
2 years ago
Other questions:
  • The magnetic force on a straight wire 0.69 m long is 1.5 x 10-3 N. The current in the wire is 16.9 A. What is the magnitude of t
    10·1 answer
  • The half-life of Co-55 is 175 hours. How much of a 4000 g of Cobalt-55 sample would be left after 525 hours?
    10·1 answer
  • Your boss tells you that she needs a decision by the end of the day about the machine you want to purchase for your new operatio
    9·2 answers
  • A 16 N force is applied to an object and 96 J of work is done. How far was the object moved?
    13·2 answers
  • By using kepler's 3rd law we find that ___________.
    13·2 answers
  • What happens to a wave if its frequency decreases?
    6·1 answer
  • 1000 kg of water initially at 6 m/s runs through a hydro-generator. If the water leaves the generator at velocity of 4 m/s, and
    8·1 answer
  • Givereasons for the following.
    13·1 answer
  • An object of mass m 1 moving with speed v collides with another object of mass m 2 at rest and stick to it. Find the impulse to
    5·1 answer
  • How do skiers slide across the ice?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!