To INcrease the strength of an electromagnet ...
... INcrease the number of windings
... INcrease the electric current (by increasing the voltage of the battery)
... change the core from wood to iron
Answer:
307.07N
Explanation:
Given
Weight of object = 250N
angle of elevation = 18.0°
coefficient of kinetic friction n = 0.26
acceleration = 9.81m/s^2
Required
Force parallel to the ramp
Using Newton second law
F = ma
Fm - Ff = ma
Fm - nR = ma
Fm = ma +nR
Fm = 25(9.81) + 0.26(Wcostheta)
Fm = 25(9.81) + 0.26(250cos18)
Fm = 245.25+61.81
Fm = 307.07N
Hence he magnitude of the force that the rope exerts on the crate parallel to the ramp is 307.07N
Answer: f = 6.5Hz
Explanation:
Given that the
Speed V = 65 m/s
Wavelength (λ) = 10m
Wave speed is the product of frequency and wavelength. That is,
V = fλ
Substitute V and (λ) into the formula to get frequency f
65 = 10f
Make f the subject of formula
f = 65/10
f = 6.5 Hz
Therefore, the frequency of this wave is 6.5 Hz?
Answer:
sediments
Explanation:
Weathering is the breakdown of rocks into smaller particles called:
sediments
Weathering is the physical disintegration and chemical decay of rocks into smaller fragments to produce sediments. The product of rock weathering is basically sediments. Some of the sediments can be transformed to form soils when they combine with organic matter, water and air.
Physical weathering is when rocks are physically broken into smaller pieces, but the minerals in the rock remain the same.
Physical weathering
Physical weathering is the disintegration of rocks into smaller bits without altering the chemical make up of the minerals. The goal of physical weathering is to expose rock surface to action of chemical weathering.
When a rock is broken down in a way that changes the mineral composition, it is called chemical weathering
chemical weathering
Chemical weathering is the decay of rocks by altering the minerals in a rock.
Hope this Helps! c: