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Vsevolod [243]
4 years ago
13

Volcanic Island Arcs are produced by

Physics
1 answer:
Mashcka [7]4 years ago
8 0
Explosive volcanoes erupted Arcs are produced
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A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw b
lapo4ka [179]
The best conclusion to draw based on the description would be: <span>A.The electric field points to the left because the force on a negative charge is opposite to the direction of the field.
This phenomenon happened because </span><span>The electric field from a positive charge will points away from the charge while the electric field from a negative charge will points toward the charge</span>
4 0
4 years ago
Read 2 more answers
A conductor bent into a semicircle of total length 3.88 m is placed in a 2.0 T magnetic field perpendicular to the plane of the
ivolga24 [154]

Answer:

Magnetic force, F = 38.95 N

Explanation:

Given that,

Length of the conductor, L = 3.88 m

Magnetic field, B = 2 T

Current flowing in the conductor, I = 5.02 A

The magnetic field perpendicular to the plane of the semicircle. The angle between the magnetic field and the plane is 90 degrees. The expression for the magnetic force is given by:

F=ILB\ sin\theta

F=ILB

F=5.02\times 3.88\times 2

F = 38.95 N

So, the magnitude of the total force acting on the conductor in the magnetic field is 38.95 N. Hence, this is the required solution.

5 0
4 years ago
Lucas has been challenged to increase the efficiency of a device he is redesigning. His goal is 90 percent efficiency. The work
malfutka [58]
<span>Answer to the question is 9joules</span>
4 0
3 years ago
Which has more momentum: a 5000 kg truck moving at 10 m/s or a sports car with a
Anna [14]

Answer:

The sports car has more momentum.

Explanation:

Truck: P = mv = 5000 kg × 10 m/sec = 50,000 kg-m/sec

Sports car: P = mv = 1200 kg × 50 m/sec = 60,000 kg-m/sec

4 0
3 years ago
100j of heat energy are transferred to 80 g of mercury. By how much does the temperature increase?
olchik [2.2K]

Given: Heat given to mercury (Q) = 100 J

Mass of mercury (m) = 80 g = 80 × 10⁻³ kg

Specific Heat capacity of mercury (c) = 138 J/kg°C

Let the rise of temperature be Δt

Formula Used:   Q = mcΔt

Here, all alphabets are in their usual meanings.

Calculation:

                          Q = mcΔt

or,                     Δt = Q / mc

or,                     Δt = 100 J /[(80 × 10⁻³ kg)×(138 J/kg°C)]

or,                     Δt = 9.058 °C

or,                     Δt = 9.1 °C

Hence, the required increase in temperature will be 9.1 °C.

6 0
4 years ago
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