Answer:
0.25 cm³.
Explanation:
We shall apply Boyle's law to find the solution . According to it
PV = constant where P is pressure and V is volume of the gas.
P₁ V₁ = P₂V₂
1 x .5 = 2 x V₂
V₂ = 0.25 cm³.
Answer:
C. Zero for ammeter; infinity for voltmeter
Explanation:
Ammeter: A device that is used to measure the current through a circuit.
Voltmeter: A device that is used to measure the electric potential difference between two points in a circuit.
The relation among voltage (v), current (i), and resistance (r) is given as,
In ideal cases an ammeter must have zero resistance so that there is no voltage drop across it and accurate value of current will be measured.
In case of an ideal voltmeter, the resistance should be infinite so that the current across it is zero.
B. It decreases your resting heart rate
Protons, electrons, and neutrons have electrical charges. Protons are positive. Electrons are negative and neutrons are neutral (no charge).<span />
<h3>
Answer:</h3>
80 kgm/s
<h3>
Explanation:</h3>
<u>We are given;</u>
- Mass of the Canoe is 32 kg
- Speed of the Canoe is 2.5 m/s
We are required to calculate the momentum of the Canoe?
- We need to know that momentum is the product of mass of an object and its speed.
Momentum = Mass × speed
Therefore;
Momentum = 32 kg × 2.5 m/s
= 80 Kgm/s
Thus, the momentum of the Canoe is 80 kgm/s.