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
Nutka1998 [239]
3 years ago
7

Benny can’t get the metal lid off a new glass jar of jam. His mother tells him to run hot water carefully over the lid. He does

this and is able to unscrew the lid easily. Explain what happened. Use these terms in your answer: Heat, temperature, specific heat, and thermal expansion
Physics
1 answer:
ELEN [110]3 years ago
6 0

Answer:

The cap expanded

Explanation:

As you run hot water (Or any substance) onto something it expands, With coldwater it shrinks. Its like clothes, If a shirt is to small wash it in hot water. If it is to big run it in cold water.

You might be interested in
The ratio of output power to input power, in percent, is called
kow [346]

That ratio is called"efficiency".  It doesn't need to be a percent. 
It can just as well be a fraction or a decimal number.

3 0
2 years ago
José is pinned against the walls of the Rotor, a ride with a radius of 3.00 meters that spins so fast that the floor can be remo
satela [25.4K]

Answer:

179 kg

Explanation:

8 0
3 years ago
The greater the pull of gravity on an object, the greater the what of that object
Nikitich [7]

Answer:

weight

Explanation:

" the greater the pull of gravity on an object, the greater the weight of that object." In physics, weight is measured in newtons (N), the common unit for measuring force.

3 0
2 years ago
Por qué se celebra el día del deporte
yulyashka [42]

Answer:

Día Internacional del Deporte para el Desarrollo y la Paz, 6 de abril. El deporte ha desempeñado históricamente un papel importante en todas las sociedades, ya sea en forma de competiciones deportivas, de actividades físicas o de juegos. ... De hecho, el deporte es un socio natural para el sistema de la ONU.

Explanation:

7 0
2 years ago
Two sound waves, from two different sources with the same frequency of 420 Hz travel in the same direction at 336 m/s. The sourc
Tresset [83]

Answer:

Pi(3.14) radians or 180º degrees

Explanation:

First of all, we need to obtain the wavelength of a wave traveling to the speed of sound and 420 Hz of frequency.

The formula is:

l=wavevelocity/frequency

where l = wavelength in meters

With current values:

l = 336 [m/s]/420[1/s] = 0.8 meters

Since a complete cycle (360º or 2pi radians) needs 0.8 meters to complete, 0.4 meters or 40 cm is just half of it, making a 180º degree phase or 3.14 radians.

8 0
3 years ago
Other questions:
  • You will get 50pts and the check mark.
    9·2 answers
  • At an air show, Julia saw a fighter jet fly by. Three seconds later she heard the sonic boom of the sound barrier being broken.
    11·2 answers
  • Sound travels fastest through A) space. B) cool air. C) warm air. D) a metal spoon.
    6·2 answers
  • Which of the following describes work?
    5·2 answers
  • A motorcyclist drove 7 km at 57km/h and then another 7 km at 81 km/h. What was the average speed? ​
    5·1 answer
  • At a playground, a child slides down a slide that makes a 42° angle with the horizontal direction. The coefficient of kinetic fr
    12·1 answer
  • Tarzans mass is 75kg. calculate his weight
    14·1 answer
  • an aircraft landing on an air craft carrier is brought to a complete stop from an inital velocity of 215km/hr in 2.7 seconds. wh
    10·1 answer
  • two forces whose magnitude are in ratio of 3:5 gives a resultant of 35N.if the angle of inclination is 60degree.calculate the ma
    10·1 answer
  • Diego and Mika are trying to remove a tire from
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!