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
AfilCa [17]
3 years ago
10

What mass of water will change its temperature by 20.0 degrees Celsius when 515 J of heat is added to it? the specific heat of w

ater is 4.18J/g*C.
Physics
1 answer:
andrey2020 [161]3 years ago
4 0
The problem can be solve using the formula:
q = m Cp T
where q is the heat added to the substance
m is the mass of the substance
Cp is the specific of the substance
T is the change in temperature of the subtance

q = m Cp T
515 = m ( 4.18 ) ( 20)
m = 515 / ( 4.18) ( 20 )
m = 6.16 g of water

You might be interested in
If 5J of work are done on a spring, compressing it by 12cm, what is the spring constant?
laiz [17]

Answer:

hi

Explanation:

hello

7 0
3 years ago
If Abdul pedals his 20 kg bike with a force of 100 N, what will the bike’s acceleration be? The formulas above may be helpful in
Scorpion4ik [409]

Answer:

5 m/s/s

Explanation:

F = ma

100 = 20a

100/20 = a

a = 5 m/s/s

4 0
3 years ago
During a plane showcase, a pilot makes circular "looping" with a speed equal to the sound speed (340 m/s). However, the pilot ca
Dmitriy789 [7]

Answer:

1472.98 m

Explanation:

Data provided:

Speed of circular looping, v = 340 m/s

Acceleration, a = 8g

here,

g is the acceleration due to the gravity = 9.81 m/s²

Now,

the centripetal acceleration is given as,

a=\frac{v^2}{r}

r is the radius of the loop

on substituting the respective values, we get

8\times9.81=\frac{340^2}{r}

or

r = 1472.98 m

5 0
4 years ago
The tip of the second hand of a clock moves in a circle of 20 cm circumference. In one minute the hand makes a complete revoluti
Cerrena [4.2K]

Answer:

v_{avg} = 0

Explanation:

As we know that average velocity is defined as the ratio of total displacement of the object and its time interval.

so here we can say

v_{avg} = \frac{displacement}{time}

now we know that in one complete revolution the total displacement of the tip of the seconds hand is zero

because it will have same position after one complete revolution from where it starts

so here we can say that the average velocity will be zero

v_{avg} = 0

7 0
3 years ago
Which of the following has the most biomass?
Crazy boy [7]
Where are the questions so that I can deliver a more accurate answer. 
8 0
3 years ago
Other questions:
  • What is the voltage output (in V) of a transformer used for rechargeable flashlight batteries, if its primary has 480 turns, its
    8·1 answer
  • A person travels by car from one city to another. She drives for 23.5 min at 74.5 km/h, 15.9 min at 111 km/h, 49.2 min at 38.7 k
    9·1 answer
  • Which two men developed the steam engine?
    10·1 answer
  • A ball falling through the air has what?
    7·1 answer
  • The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. Find the t
    14·1 answer
  • There are many types of significant lines in blueprint reading. Which line defines the walls and surface boundaries of prints?
    14·1 answer
  • A ball is thrown vertically upward with a speed of 25.0 m/s from a height of 2.0 m.
    14·1 answer
  • Why is a protective apron or lab coat important to use when working with acids?
    15·2 answers
  • Which object has unbalanced forces acting on it
    11·1 answer
  • Hdhehehbebehebehebebbebehe
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!