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Alex_Xolod [135]
3 years ago
12

One property that electromagnetic waves differ from other types of waves is that they can

Physics
1 answer:
almond37 [142]3 years ago
6 0
B.) travel in a vacuum
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Superman throws a 2400 n boulder at a villain. what horizontal force must superman apply to the boulder to give a horizontal acc
Ksenya-84 [330]
The boulder has a weight of W=2400 N. The weight of an object is the product between its mass m and the gravitational acceleration g:
W=mg
Rearranging the relationship, we can calculate the mass of the boulder:
m= \frac{W}{g}= \frac{2400 N}{9.81 m/s^2}=244.6 kg

We are told that Superman applies a horizontal force to this object, and as a result, the acceleration of the boulder is a=12.0 m/s^2. We can find the force applied by using Netwon's second law of motion:
F=ma=(244.6 kg)(12.0 m/s^2)=2935 N
4 0
3 years ago
What is an automatic stabilizer?
Oduvanchick [21]

Answer:

c. It refers to any government program that tends to reduce fluctuations in GDP automatically.

Explanation:

Automatic Stabilizer is nothing but any scheme or program that that tends to reduce fluctuations in GDP automatically. It is generally intended to stabilize the GDP of a nation.

For examples In cases of economic slow down, the government sells its ownership in public sectors undertakings like,  railways, oil and natural gases, to private players. So, that government has some money to combat the slowdown.  

3 0
4 years ago
The unit for acceleration is always
Mazyrski [523]

Explanation:

Because acceleration is velocity in m/s divided by time in s, the SI units for acceleration are m/s2, meters per second squared or meters per second per second, which literally means by how many meters per second the velocity changes every second. ... The quicker you turn, the greater the acceleration.

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3 years ago
The activity of mining has direct negative effects on
Rom4ik [11]

Answer:

A

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When coal is burned it releases many harmful chemicals into the air, such as methane (greenhouse gas) and contributes to global warming

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In a coal-burning power plant, a condenser is used to cool down the steam and convert it back to liquid water true or false
balandron [24]
False because they let it in to the atmosphere and then its condenced
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4 years ago
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