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
Burka [1]
3 years ago
7

Jake and Amir are both standing on identical skateboards and

Physics
1 answer:
kolbaska11 [484]3 years ago
6 0

Answer: 20

Explanation:

You might be interested in
Mary Jo went on riding her horse through the trails. Her pace was 8 km/hr. She left at 8:30 am and got back to the barn at 9:00
goldfiish [28.3K]

Answer:

4km

Explanation:

Distance=speed x time

Knowing this we know the time and speed

so it is 8 x .5= D

And 8 x .5 =4

If you have any questions let me know

4 0
3 years ago
Tell whether the following statements are true or false:
Digiron [165]

Answer:

1)true

2)false

3)true

4)true

5)false,cz amatter is made of atoms while light is an electromagnetic radiation.

8 0
3 years ago
Two 84.5 g ice cubes are dropped into 30 g of water in a glass. If the water is initially at a temperature of 50 C and if the ic
Setler [38]

Answer:

final temperature will be 0 degree C

Total amount of ice will be

m_{ice} = 182 g

total amount of water

m_{water} = 17 g

Explanation:

After thermal equilibrium is achieved we can say that

Heat given by water = heat absorbed by ice cubes

so we will have

Heat given by water to reach 0 degree C

Q_1 = m_1s_1 \Delta T_1

Q_1 = 0.030(4186)(50 - 0)

Q_1 = 6279 J

heat absorbed by ice cubes to reach 0 degree

Q_2 = m_2 s_2 \Delta T_2

Q_2 = (0.169)(2100)(30)

Q_2 = 10647 J

so we will have

Q_2 > Q_1

so here we can say that few amount of water will freeze here to balance the heat

10647 - 6279 = mL

m = \frac{10647 - 6279}{335000}

m = 13 g

so final temperature will be 0 degree C

Total amount of ice will be

m_{ice} = 84.5 + 84.5 + 13

m_{ice} = 182 g

total amount of water

m_{water} = 30 - 13

m_{water} = 17 g

4 0
3 years ago
How to measure the external diameter of a sphere
DanielleElmas [232]
Sphere is that the circular objects in the two dimensional space (1) circle
(2) disk. Two dimensional space is a set of points and the distance of that point,The two points of Sphere that length and center.
Sphere can constructed as the named of surface form circle about any diameter. circle is the special type of the revolution replacing the circle,
sphere is the distance r is the radius of the ball and circle is the center of mathematical ball,as the center and the radius of the sphere is to respectively.
The ball and sphere has not be maintained mathematical references as a solid references. A sphere of any radius is centered at the number of zero.
4 0
3 years ago
Which describes how light travels?
trasher [3.6K]

Answer:

the Answer Would be D

Explanation:

From what I know light travels 300,000 km/second , travels at fast speeds and travels in a straight line

4 0
3 years ago
Read 2 more answers
Other questions:
  • An ideal gas trapped inside a thermally isolated cylinder expands slowly by pushing back against a piston. The temperature of th
    11·1 answer
  • What energy transformations from eating an apple to riding your bike?
    8·2 answers
  • If you push a 100-kilogram box on Earth, then take it to the Moon and try to push it there, it would feel like you were pushing
    7·2 answers
  • A train travels 225 kilometers in 2.5 hours . what's the trains average speed
    9·2 answers
  • Describe what happens, at a microscopic level, when an object is charged by rubbing. For instance, what happens when a plastic p
    14·1 answer
  • please help!!!!!what is the main function of a telescope? A.it brings scientists closer to distant obejects B. it magnifies ligh
    7·2 answers
  • What material most likely would form a aquiclude?
    14·1 answer
  • A boat heads directly across a river. Its speed relative to the water is 2.6 m/s. It takes it 355 seconds to cross, but it ends
    10·1 answer
  • You and your 3 friends are driving down the road. All the wheels go flat at the exact same time, that's not good. You have to us
    15·1 answer
  • which factors affect absorption and reflection of thermal energy? check all that apply. THIS IS A TEST​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!