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Bumek [7]
4 years ago
10

Someone please help?

Physics
1 answer:
I am Lyosha [343]4 years ago
5 0

I believe it is A, because we know the equation is F=ma, and I don't think the mass of a cart can change so I believe it has to be the acceleration that changes when he applies more force. It is an increase in speed rather than a decrease because if the F is greater, the ma has to make up for it by increasing the a. Therefore we know the cart goes from 0 acceleration to a positive acceleration as the cart moves faster.

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Developed countries typically have _______.
Anna35 [415]

Answer:

Good government

Explanation:

Many people will think its natural resources but its not. Africa is a proof. They have resources but leadership is what makes most of their countries 3rd world. #BADGOVERNANCE

8 0
3 years ago
Which form of heat transfer occurs when objects of two temperatures touch
Arada [10]
Conducting because it occurs when two objects touch and heat is transferred
7 0
4 years ago
What are the two factors that affect the period of a pendulum?
klemol [59]
The two factors that affect the period of a pendulum are the length of the string and the distance in which the pendulum falls.

Hope this helps! I would greatly appreciate a brainliest! :)
3 0
4 years ago
A football kicker kicks a ball with a mass of .42 kg. The average acceleration of the football was 14.8 m/s squared. How much fo
mrs_skeptik [129]

To find the force we use the formula,

F = ma , where m is mass and a acceleration

Using the formula,

F = ma

F = 0.42 x 14.8

F = 6.216 N / 6.22 N

Hope you liked the answer !

4 0
3 years ago
If a train is 100 kilometers away, how much sooner would you hear the train coming by listening to the rails (iron) as opposed t
Whitepunk [10]
From tables, the speed of sound at 0°C is approximately
V₁ = 331 m/s (in air)
V₃ = 5130 m/s (in iron)

Distance traveled is
d = 100 km = 10⁵ m

Time required to travel in air is
t₁ = d/V₁ = 10⁵/331 = 302.12 s

Time required to travel in iron is
t₂ = d/V₂ = 10⁵/5130 = 19.49 s

The difference in time is
302.12 - 19.49 = 282.63 s

Answer:  283 s (nearest second)



6 0
3 years ago
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