The answer is 40 kg. m/s.
Formula for momentum:
p=mv
p=(10 kg.)(4 m/s)
So, therefore, the final answer is p=40 kg. m/s.
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A 2-kg bowling ball sits on top of a building that is 40 meters tall.
GPE
A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall
its moving n its on top of a bldg. so ans is both KE n GPE
A 2-kg bowling ball rolls at a speed of 10 m/s on the ground.
KE
A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5 m/s.
moving n in the air. ans is both KE n GPE
eqn: KE= 1/2mv^2, GPE=hmg
A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?
50000=1/2*1000^v^2
v=10m/s
A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?
39200=200*9.8*h
h=20m
A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. What is its speed? What is its height?
12.5=1/2*1*v^2
v=5m/s
98=1*9.8*h
h=10m
The magnitude of the magnetic force per meter (in nm) exerted on each wire is 3.74 * 10^-3 N/m or 3.74v 8 10 ^6 N/nm.
Magnetic force, enchantment or repulsion that arises between electrically charged debris due to their movement. it's miles the basic pressure accountable for such outcomes as the movement of electric cars and the appeal of magnets for iron.
Magnetic pressure is a compass, a motor, the magnets that keep stuff at the fridge, educate tracks, and new curler coasters. All transferring prices supply upward push to a magnetic subject and the costs that flow thru its regions, revel in a force.
Two items containing charge with the equal path of motion have a magnetic enchantment pressure between them. in addition, gadgets with price transferring in contrary instructions have a repulsive force between them. In our article on magnetic fields we found out how transferring rate surrounds itself with a magnetic field.
explanation is given in the image below.
Force per unit length between two wires ,
F/l = μοI₁I₂/2πd
= 4π * 10^-7 *67 *67 / 2π (24 * 10^-2)
= 2 * 10 ^-7 * 67 *67/24 *10 ^ -2
= 4489/12 * 10^-5
= 3.74 * 10 ^-3 N/m
Learn more about magnetic force here:-brainly.com/question/2279150
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Answer:
Explanation:
mass of car, m = 1000 kg
initial velocity, u = 20 m/s
final velocity, v = 0 m/s
distance, s = 120 m
Let a be the acceleration of motion
use third equation of motion
v² = u² + 2 as
0 = 20 x 20 + 2 x a x 120
a = - 1.67 m/s²
Let F be the force
Force, F mass x acceleration
F = - 1000 x 1.67
F = - 1666.67 N
The direction of force is towards south and the magnitude of force is 1666.67 N.
Answer:
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One sustainable use of range land is herd management. This is ensuring that the number of cattle in the habitat does not surpass the carrying capacity of the range land. The other is grassland management. this ensures that the crop is given enough time to re-grow after grazing for a particular period of time. Herd management can be done through castration of bulls in the herd to prevent unregulated increases in the stock population. Grassland management can be done by fencing the range land into the different portions.