Which would you sprinkle around the electromagnet that you produced in the laboratory activity to see its magnetfield lines?
Which would you use to determine the direction of the field lines around a magnet?
Which would you use with a circuit to determine if a magnet was moving in close proximity to the
circuit?
Answers
Iron shavings ,compass and galvanometer use to determine the direction of the magnetic field lines around a magnet.
What is electromagnet?
An electromagnet is a magnet whose magnetic field is generated by an electric current. Wire coiled into a coil is used to make electromagnets.
A current flowing through the wire produces a magnetic field that is focused in the hole.
A tiny compass may be used to map out magnetic field lines. As illustrated, The compass is moved from point to point around a magnet, with a small line drawn in the direction of the needle at each point.
The course of the magnetic field line is then shown by joining the lines together.
Hence, iron shavings ,compass and galvanometer use to determine the direction of the iron magnetic field lines around a magnet.
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The Answer are:
1. iron shavings
2. compass
3. galvanometer
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What is the purpose of the universal gravitation constant in Newton's law of universal gravitation
Answers
The free-body diagram of your question is; 2 downward forces (253 kg mass of barbell & 133 kg body mass of Kurlovich) acting together on a point supported by 2 upward forces as normal forces exerted by Kurlovich's feet.
Solving the normal forces exerted by 2 feet :
Summation of Forces Vertical = 0
2 Dowwnard Forces = 2 Upward Forces (2F)
253 + 133 = 2F
2F = 386 Kgs
F = 386 / 2
F = 193 Kgs (Normal Force Exerted by Each Foot)
Final answer:
To calculate the normal force exerted on each of Vladimir Kurlovich's feet while lifting the barbell, we need to consider the weights of Kurlovich and the barbell. The normal force is equal to the sum of the two weights.
Explanation:
To calculate the normal force exerted on each of Vladimir Kurlovich's feet while lifting the barbell, we need to consider the weight of Kurlovich and the weight of the barbell. The normal force is equal to the sum of Kurlovich's weight and the weight of the barbell, as it balances the gravitational force pulling them downwards. Kurlovich's weight can be calculated using his mass and the acceleration due to gravity, which is approximately 9.8 m/s².
Step 1:
Calculate Kurlovich's weight:
Mass = 133 kg
Acceleration due to gravity = 9.8 m/s²
Weight = Mass × Acceleration due to gravity
Weight = 133 kg × 9.8 m/s²
Step 2:
Calculate the weight of the barbell:
Mass = 253 kg
Acceleration due to gravity = 9.8 m/s²
Weight = Mass × Acceleration due to gravity
Weight = 253 kg × 9.8 m/s²
Step 3:
Calculate the normal force exerted on each foot:
Normal force = Kurlovich's weight + Barbell's weight
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What is the final speed of the car after this work is performed?
Answers
Answer:
9.43 m/s
Explanation:
The law of conservation of energy requires that the total energy before and after transformation must be equal. Kinetic energy of car and rocket combined equals the parachute energy and that of car.
Final energy of car will be 66120-36733=29,387 J
Kinetic energy, and making v the subject of the formula then
Where m is the mass and v is velocity.
Substituting 29387 J for KE and 661 kg for m then
A. scatters
B. absorbs
C. transmits
Answers
Answer:
The answer is B
Explanation:
My answer to this quesstion is B because the black fur will absorb more light which then results for the black dog with black fur at a greater risk.
Answers
B. when it is at the equilibrium position
C. when it is fully stretched
D. when it is at near rest
Answers
Answer:
option (c)
Explanation:
The velocity of the oscillating body is zero when it is at its maximum displacement position from its mean position.
So, when the spring is fully stretched, means at maximum displacement the velocity is zero.
C. when it is fully stretched
Answers
Final answer:
The lithosphere is made up of the Earth's crust and the upper part of the mantle. It is responsible for the formation of landforms like mountains and plateaus.
Explanation:
The lithosphere is made up of the Earth's crust and the upper part of the mantle. The Earth's crust is divided into several tectonic plates that float on the semi-fluid asthenosphere underneath. This rigid lithosphere is responsible for the formation of landforms like mountains, valleys, and plateaus.
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