Hi Mandy!
Question - Momentum is a measure of the _ of an object.
Answer - motion
Why - Momentum is just another word for motion.
Hope this Helps :)
Answer:
huh english plssss bc I didn't understand
c. To increase power, you can increase the amount of work you do in a given amount of time, or you can do a given amount of work in less time.
Explanation:
- Power in physics is defined as the rate of energy is being transferred over a particular time. The rate or amount of energy transfer is the work done to an object whereas it is in a specified time.
- The formula to find the power is , Hence, to increase the power in a given system either you have to reduce the time by increasing the work or increase the amount of work in the given time.
Answer:
Output power = 500 KW
Explanation:
Given the following data;
Efficiency = 20%
Input power = 2500 KW
To find the output power;
Substituting into the equation, we have;
LET Output power = OP
Cross-multiplying, we have;
Output power = 500 KW
Answer:
Volume of the wood = 120.615 cm3
Density of the wood = 0.457 g/cm3
Explanation:
By definition, density is the mass of a substance per unit volume and its units are kg/m3, g/l etc.
Volume of a cuboid = length * breadth * height
Length = 8.5 cm
Breadth = 3.3 cm
Height = 4.3 cm
Volume of the wood = 8.5 * 3.3 * 4.3
= 120.615 cm3
Mass of the wood = 55.120 g
Density = mass/volume
= 55.120/120.615
= 0.457 g/cm3
= 457 kg/m3