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
Naddik [55]
3 years ago
8

A square sheet of rubber has sides that are 20 cm long. If you stretch it so that the area of the rubber is four times larger, h

ow
long is each of the sides now?
Each side = ____cm
Physics
2 answers:
MA_775_DIABLO [31]3 years ago
8 0

Answer:

40

Explanation:

The area is 400cm^2 but the area on each side is 40cm.

oee [108]3 years ago
7 0

Answer:

400

Explanation:

Trust me its correct

You might be interested in
A 56.6-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.517 and 0.260,
kifflom [539]

Answer:

Explanation:

Magnitude of frictional force = μ mg

μ is either static or kinetic friction.

To start the crate moving , static friction is calculated .

a ) To start crate moving , force required = μ mg where μ is coefficient of static friction .

force required =.517 x 56.6  x 9.8 = 286.76  N .

b ) to  slide the crate across the dock at a constant speed , force required

= μ mg where μ is coefficient of kinetic  friction , where μ is kinetic friction

= .26 x 56.6  x 9.8 = 144.21 N .

3 0
2 years ago
What is the specific heat of the masses in this experiment? Infer the substance the masses are made of and explain your inferenc
horsena [70]
To respond to the question, we need the data provided with the question.
7 0
3 years ago
Read 2 more answers
Conduction transfers Thermal energy by
Vesnalui [34]

Answer:

Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more.

5 0
3 years ago
A wire that is 0.86 meters long is moved perpendicularly through a constant magnetic field of strength 0.035 newtons/amp·meter a
GaryK [48]
The emf induced = B*l*v where B is the flux density, l the length of the conductor and v the velocity of the conductor. In the given case B = 0.035 N/amp.meter, l = 0.86 and v = 6 m/sec
emf = 0.035*0.86*6 = 0.1806 v ≈ 0.18 v
choice: D
6 0
3 years ago
A truck is traveling due north at 75 km/hr approaching a crossroad. On a perpendicular road a police car is traveling west towar
Gre4nikov [31]

Answer:

109.66km

Explanation:

Velocity is defined as the change in displacement of a body with respect to time.

Velocity = displacement/Time

Displacement = velocity * time

A truck is traveling due north at 75 km/hr approaching a crossroad and perpendicular road a police car is traveling west toward the intersection at 80 km/hr, then the resultant velocity is gotten using the pythagoras theorem since they are both perpendicular to each other.

v² = 75²+80²

v² = 5625+6400

v² = 12,025

v = √12,025

v = 109.66km/hr

If both vechicles reaches cross road in exactly one hour, the displacement of the truck with respect to the police car =  109.66km/hr * 1 hour

Displacement of the truck with respect to the police car = 109.66km

7 0
3 years ago
Other questions:
  • A ray of light is incident on a flat surface of a block of polystyrene, with an index of refraction of 1.49, that is submerged i
    5·1 answer
  • Which scenario involves acceleration?
    11·1 answer
  • The earth is not a star . why?​
    15·1 answer
  • Quick! how did Daniel hale Williams contribute to science?
    10·1 answer
  • Two beams of coherent light travel different paths, arriving at point P. If the maximum destructive interference is to occur at
    6·1 answer
  • Which vector has a y-component with a length of 4?
    15·1 answer
  • Put the waves in order from highest frequency to lowest frequency
    7·2 answers
  • Picture a ball traveling at a constant speed around the inside of a circular Structure. is the ball acceleration? Explain why?
    13·2 answers
  • When waves interact do they move through each other or bounce off each other? WILL MARK BRAINLIEST!!!
    10·1 answer
  • A ball A of mass 0.5 kg moving with a Velacity of 10 m/s a head on Collision with a ball B of mass 2kg moving with a Velocity of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!