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
Oksana_A [137]
3 years ago
9

If you know this please help me !!

Physics
1 answer:
Alecsey [184]3 years ago
5 0
When atoms lose electrons they become positively charged ! When atoms gain electrons they become negatively charged !
You might be interested in
Which structures main function is to produce food (sugar) in a plant
leva [86]
Technically speaking, there are many "levels" of a plant for which this may hold true. I think the one you are referring to is the chloroplast. It takes in the light energy from the sun, water and carbon dioxide, and performs photosynthesis on them to produce sugar and oxygen. A leaf would also fit the description as this is a very general question.
8 0
3 years ago
Which is a chemical property of iron?
Free_Kalibri [48]
Im pretty sure its the first option
6 0
3 years ago
HELP ASAP!!! Some bands hate playing in school gyms because sound waves easily reflect off the walls and floor. What could you d
jonny [76]

Answer:

1.) Covering the ceiling and walls with soft perforated boards

2.) Hanging curtains round the hall

3.) Having more opening in the wall.

Explanation:

This is due to what we called Reverberation due to poor acoustic properties.

Reverberation can be reduced by;

1.) Covering the ceiling and walls with soft perforated boards

2.) Hanging curtains round the hall

3.) Having more opening in the wall.

4 0
3 years ago
The more active a cell is, the more of these structures it has.
Aleks [24]

Answer:pretty sure its mitochondria

Explanation:

6 0
3 years ago
A small sphere is hung by a string from the ceiling of a van. When the van is stationary, the sphere hangs vertically. However,
olganol [36]

Answer with Explanation:

We are given that

String makes an angle w.r.t  vertical=\theta=

a.We have to derive an expression for the magnitude of the acceleration of the van in terms of the angle \theta and magnitude g of the acceleration due to gravity.

According to newton's second law

T sin\theta=ma

Tcos\theta=mg

\frac{Tsin\theta}{Tcos\theta}=\frac{ma}{mg}

tan\theta=\frac{a}{g}

a=gtan\theta

b.\theta=10^{\circ}

g=9.8 m/s^2

a=9.8\times tan10^{\circ}=1.73 m/s^2

c.Velocity=Constant

We have to find the angle \theta

a=0

0=9.8tan\theta

tan\theta=0

tan\theta=tan0

\theta=0^{\circ}

3 0
3 years ago
Other questions:
  • 2. While standing near a bus stop, a student hears a distant horn beeping. The frequency emitted by the horn is 440 Hz. The bus
    5·1 answer
  • A high-jumper clears the bar and has a downward velocity of - 5.00 m/s just before landing on an air mattress and bouncing up at
    7·1 answer
  • You throw a rock horizontally off a cliff with a speed of 20 m/s. after two seconds, the magnitude of the velocity of the rock i
    5·1 answer
  • For each of the statements below, decide which of the Maxwell equations (forstaticsituations) tells you that the statement is tr
    7·1 answer
  • Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, t
    6·1 answer
  • What characteristic of solitaire did Mendeleev<br> use as a model for his periodic table?
    5·1 answer
  • You have a string with a mass of 0.0123 kg.0.0123 kg. You stretch the string with a force of 8.37 N,8.37 N, giving it a length o
    8·1 answer
  • You are exploring a newly discovered planet. The radius of the planet is 7.50 × 107 m. You suspend a lead weight from the lower
    5·1 answer
  • Because the snow suddenly gets too slushy, you decide to carry your 100-n sled the rest of the way home. How much work do you do
    6·1 answer
  • How much speed is needed for an object to travel 250 km in 1.5 hrs? *<br> Your answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!