A.) 3,800
* Add 1800+2000 because they are both going forward, and you are look for the total amount of forward force. Hope this helped good luck!!!
Answer:
D) Reduce the time interval during which the magnitude of the field increases.
Answer:
The tuba is the biggest, and among the newest, of all the brass instruments. Tuba players create the low-pitched sound by making a kind of "buzz" with their breath against the mouthpiece and pressing the tuba's valves to form notes.
Explanation:
in other words it because less air molecules are abloe to go through the mouth peiece of the tuba
Answer:
See the explanion below
Explanation:
Linear momentum is defined as the product of mass by velocity and can be calculated by the following equation.
where:
P = momentum [kg*m/s]
m = mass [kg]
v = velocity [m/s]
When the ball hits the wall it receives a force for a very short time, this time and force value is known as momentum and can be calculated by the following expression.
where:
m₁ = mass of the ball [kg]
v₁ = 5 [m/s]
v₂ = 5 [m/s]
v₁ = v₂
It can be said that the impulse is equal to 2 times the speed of throwing by the mass.
Statement 1: 0 K = -273 °C. This is true. This has come to be referred to as absolute zero which is very theoretical as it has never been attained.
Statement 2: °C is not used with Kelvin scale. This is true. Kelvin is a scale equivalent to °C and thus ° is not used with Kelvin scale and this would be a different scale all together which does not exist.
Statement 3: Cryogenics has been defined as the production and characteristics of materials at very low temperatures. Therefore, it can also be defined as a study and thus this statement is true.
Statement 4: Volume of gas at absolute zero is, theoretically, thought to be zero. This is due to the reasoning that at that temperature, all the gas will have condensed to liquid. However, absolute zero temperature has never been attained. Therefore, this statement is theoretically true.
Statement 5: Scientist have not yet cooled anything to absolute zero and thus this statement is false.
