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
galina1969 [7]
3 years ago
12

A student measures out 5.0 g of magnesium and burns it. After the reaction, the student

Physics
1 answer:
kondor19780726 [428]3 years ago
4 0

Answer:

The answer is 2.9. g

Explanation:

7.9 - 5.0 = 2.9

I hope this helps!

You might be interested in
A 15kg dog jumps out of a 40kg canoe. If the dogs velocity is 1.2m/s, what is the velocity of the canoe?
vivado [14]

Answer:

v = -0.45 m/s

Explanation:

Assuming the canoe was initially at rest with momentum L = 0

and that the dog's velocity is in the positive direction

conservation of momentum

0 = 15(1.2) + 40v

v = -0.45 m/s

6 0
2 years ago
An input for of 80 N is used to lift an object weighing 240 N with a system of pulleys. How far must the rope around the pulleys
sammy [17]

Answer:

4.2 m

Explanation:

Note: If energy is conserved, i.e no work is done against friction

Work input = work output.

Work output = Force output × distance,

Work input = force input × distance moved moved.

Therefore,

input force×distance moved = output force × distance moved........................Equation 1

Given: input force = 80 N, output force = 240 N, output distance = 1.4 m

Let input distance = d

Substitute into equation 1

80×d = 240×1.4

80d = 336

d = 336/80

d = 4.2 m.

Thus the rope around the pulley must be pulled 4.2 m

7 0
3 years ago
When is the average velocity of an object equal to the instantaneous velocity?
atroni [7]

Answer:

Average velocity of an object is equal to the instantaneous velocity when it's acceleration is zero.

Explanation:

4 0
3 years ago
Sarah launches her purse straight up in air with a velocity of 30.2m/s<br> How high will it go?
yaroslaw [1]

Answer: 46.53

Explanation:

6 0
3 years ago
Wood is an example of a translucent material.<br> True<br> False
Svetradugi [14.3K]
False, wood is a solid structure that is not see through
3 0
3 years ago
Other questions:
  • A Tesla Roadster car accelerates from rest at a rate of 7.1m/s' for a time of 3.9s.
    10·1 answer
  • Is stretching before working out important?
    14·2 answers
  • A person bounces up and down on a trampoline, while always staying in contact with it. The motion is simple harmonic motion, and
    11·1 answer
  • 4. Challenge: Try to explain these results based on the fact that air pressure decreases with
    15·1 answer
  • The water behind Grand Coulee Dam is 1000 m wide and 200 m deep. Find the hydrostatic force on the back of the dam. (Hint: the t
    10·1 answer
  • Which item stores the most electrical potential energy within its capacitors?
    6·1 answer
  • Why dont you fall through walls when you lean against them? provide a scientific explanation to explain your answer.​
    14·1 answer
  • Please answer ASAP, and please don't joke around and actually do answer my question. I will give you brainliest if you answer it
    15·1 answer
  • I WILL GIVE YOU BRAINLIEST! PLEASE HELP
    15·1 answer
  • Now that you know how forces affect the motions of objects, you can use the Tracker video analysis tool to create dynamic models
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!