Answer:
Explanation:
Mass of nails is 0.25kg
Mass of hammer 5.2kg
Speed of hammer is =52m/s
Then, Ben kinetic energy is given as
K.E= ½mv²
K.E= ½×5.2×52²
K.E= 7030.4J
Given that, two-fifth of kinetic energy is converted to internal energy
Internal energy (I.E) = 2/5 × K.E
Internal energy (I.E) = 2/5 × 7030.4
I.E=2812.16J.
Energy increase is total Kinetic energy - the internal energy
∆Et= K.E-I.E
∆Et= 7030.4 - 2812.16
∆Et= 4218.24J
51 inches.
This is because a stem-plot is formatted as so:
If it’s 5 on the left side of the line, anything on the right is the ones place making possible numbers 51, 53, 56, etc.
Hope this helps!
Cool ocean air causes a cool climate.
Explanation:
A large body of water such as an ocean influences climate by causing cool ocean air to cause cool climate.
The world's climate results from the sun's energy and the vast ocean circulation pattern that results from this.
- Around the equator, the sun receives direct sunlight and this warms the air around the ocean.
- The air wells up with vapor and moves away to the land area.
- As it moves over land, it loses moisture.
- This cold air becomes denser and sinks to the surface bringing in a cool climate
- The cool climate brings dryness with it.
learn more:
Climate brainly.com/question/10856870
#learnwithBrainly
Answer:
Friction
Explanation:
The key and most important external forces that allows a man to push a wheelbarrow is frictional force.
Frictional force is a force that opposes motion and will bring it to a halt.
The reason why motion is possible is due to frictional force.
Without friction, a body will move and continue in motion infinitely. No one will be able to control motion.
- Therefore, frictional force is an external force that will allow a man to push a wheelbarrow.
