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Salsk061 [2.6K]
3 years ago
15

The size of a balloon increases when the pressure inside it increases. The balloon gets bigger when it is left in the heat from

the Sun. Why does this happen?
Physics
1 answer:
Masteriza [31]3 years ago
5 0

Explanation:

This happens because the gas inside tend to expand because its temperature gets higher.

This is why the balloon that is put in a freezer for too long tend to gets smaller, because the gas temperature that is inside the balloon decreases.

(you can try it at home)

It is related to the temperature of the gas.

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Amber applies a net force of 35 N to pull her younger brother (32 kg) in a wagon (3 kg). at what rate does the wagon accerlerate
Ket [755]

Answer:

C. 1.00 m/s^2

Explanation:

We can solve the problem by using Newton's second law:

F=ma

where

F is the net force acting on an object

m is the mass of the object

a is its acceleration

In this case, the net force applied by Amber is F=35 N, while the total mass of the brother+the wagon is

m=32 kg+3 kg=35 kg

Therefore, we can re-arrange the previous equation to find the acceleration:

a=\frac{F}{m}=\frac{35 N}{35 kg}=1.00 m/s^2

6 0
3 years ago
On which of the temperature scales does water boil at the highest numerical value? A. Celsius B. Fahrenheit C. Kelvin D. Latent
velikii [3]
Answer is C. Kelvin, Kelvin is the temperature scales does water boil at the highest numerical value. Hope it helped you, and have a great day.

-Charlie
7 0
4 years ago
Read 2 more answers
A plane is moving due north, directly towards its destination. Its airspeed is 200 mph. A constant breeze is blowing from west t
Vikki [24]

Answer:

200 m/s

Explanation:

Given that,

A plane is moving due north, directly towards its destination. Its airspeed is 200 mph. A constant breeze is blowing from west to east at 60 mph.

We need to find the rate at which the plane is moving towards North. It can be given by :

V_x=v\cos\theta

Where

\theta is the angle with the North

V_x=200\times \cos(\dfrac{60}{200})\\\\=199.99\ m/s\\\\\approx 200\ m/s

Hence, the plane is moving at a rate of 200 m/s.

4 0
3 years ago
What are the units for measuring current and voltage
Alina [70]

The unit for measuring current is an " ammeter ".
The unit for measuring voltage is a " voltmeter ".

The unit of measure for electrical current is the " Ampere ".

The unit of measure for potential difference (voltage) is the " volt ".


8 0
3 years ago
Explain what was ultimately responsible for London’s “killer fog” in 1952.
stellarik [79]

Answer:

possible answer from edge

Explanation:

After World War II the only coal available to burn residentially, either for cooking or warmth, was of poor quality and contained large amounts of contaminants that made its fumes toxic. So when millions of homes in London burned this low quality coal and the local atmosphere over and around London stagnated, there was nowhere for the fumes to go. This stagnation allowed the toxic coal fumes to build up until they became physically harmful to humans and animals.

6 0
3 years ago
Read 2 more answers
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