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A copper wire of length l metre is bent to form a circular loop. If I amp current flows through the loop, find out the magnitude of magnetic moment of the loop.

Saab asked Oct 16, 2024

by Saab

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In a Bohr model of an atom, find the centripetal acceleration. A) e² / (4 * π * ε₀ * r²) B) e² / (2 * π * ε₀ * r²) C) (2 * e²) / (4 * π * ε₀ * r²) D) e² / (π * ε₀ * r²)

Ardit Hyka asked Oct 16, 2024

by Ardit Hyka

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2 votes

179k views

What pressure gradient along a streamline, dp/ds, will accelerate water (a) down a vertical pipe at 5 m/s^2? a) 5000 Pa/m b) 1000 Pa/m c) 2500 Pa/m d) 1500 Pa/m

Bolizhou asked Oct 16, 2024

by Bolizhou

8.8k points

1 answer

3 votes

104k views

How many joules of energy are needed to melt 54 grams of ice at its melting point? a. 54 joules b. 5,400 joules c. 540 joules d. 20 joules

Xielingyun asked Oct 16, 2024

by Xielingyun

7.4k points

1 answer

4 votes

171k views

Two bodies of masses m₁ and m₂ have equal kinetic energies. What is the ratio of their linear momenta? A. m₁ : m₂ B. m₂ : m₁ C. √m₁ : √m₂ D. m₁² : m₂²

Ishwr asked Oct 16, 2024

by Ishwr

8.5k points

1 answer

0 votes

199k views

Calculate the change in chemical potential of 1 mole of glucose molecules transferred down a 1000x fold (from high to low concentration) glucose concentration gradient at 300K. a) Δμ = RT ln(1000). b)

Faigjaz asked Oct 16, 2024

by Faigjaz

8.2k points

1 answer

0 votes

50.2k views

Which direction will the barrel travel when the farmer applies a downward unbalanced force on the pulley? O Up O Down O Left O No movement

Josh Winters asked Oct 16, 2024

by Josh Winters

7.9k points

1 answer

3 votes

44.1k views

The angular speed of a rotating platform changes from ω₀=2.8 rad/s to ω=8.8 rad/s at a constant rate as the platform moves through an angle Δθ=5.5 radians. The platform has a radius of R = 28 cm. (a) Calculate

Gertsen asked Oct 16, 2024

by Gertsen

7.6k points

1 answer

1 vote

95.2k views

2. a tree grows and increases its mass. explain why this is not a violation of the law of conservation of matter.

Joeri Sebrechts asked Oct 16, 2024

by Joeri Sebrechts

8.4k points

1 answer

4 votes

69.6k views

Which of the following steps is necessary to measure the capacitance of a capacitor using an LCR meter? Option 1: Disconnect the capacitor from the circuit, connect the meter's leads to the capacitor leads,

WilHall asked Oct 16, 2024

by WilHall

8.6k points

2 answers

5 votes

179k views

Given that r1=3i +2j+k, r2=2i-4j-3k, r3=-1+2j+2k. Find the magnitude of a. R=r1+ r2 r3 B. A=2r1-3r2-5r3

Matthewdaniel asked Oct 16, 2024

by Matthewdaniel

8.6k points

2 answers

2 votes

105k views

Calculate metabolic power usage while running a laptop charger. Select the true statement: a. Metabolic power usage depends on laptop charger wattage b. Efficiency of the human body is considered c. The

Kiwiana asked Oct 16, 2024

by Kiwiana

8.6k points

1 answer

3 votes

93.8k views

3A ball rolls off a 1.0 m high table with a speed of 4.0 m/s, as shown in the figure below. Calculate the speed as the ball strikes the floor: 4.0 ms¹ 1.0 m

Piotrp asked Oct 16, 2024

by Piotrp

8.1k points

1 answer

2 votes

233k views

The unified atomic mass unit is defined as (1u = 1.6605 times 10⁻²⁷) kg. Verify that this mass converted to energy yields (931.5 , {MeV}). Note that you must use four-digit or better values for (c) and

Phate P asked Oct 16, 2024

by Phate P

8.1k points

1 answer

1 vote

121k views

A block of mass rests on a block of mass 1 which is on a tabletop. A light string passes over a frictionless pulley and connects the blocks. The coefficient of kinetic friction between the blocks and between

Webucator asked Oct 16, 2024

by Webucator

7.5k points

1 answer

4 votes

88.9k views

In a study of healthy young men, doing 20 push-ups in 1 minute burned an amount of energy per kg that for a 70.0-kg man corresponds to 8.06 calories (kcal). How much would a 70.0-kg man’s temperature rise

UnknownOctopus asked Oct 16, 2024

by UnknownOctopus

7.1k points

1 answer

0 votes

43.6k views

Francine rolled a marble down a ramp and timed how long it took for the marble to reach the bottom of the ramp. After one trial, she doubled the height of the ramp and added a thick layer of wool cloth

VMC asked Oct 16, 2024

by VMC

7.9k points

1 answer

1 vote

24.0k views

What is the effect of a temperature increase from 25 to 50° F on the density altitude if the pressure altitude remains at 5,000 feet?

Brunam asked Oct 16, 2024

by Brunam

9.0k points

1 answer

5 votes

133k views

In a scenario where there is no acceleration, what could this imply about the object? A) It is at rest. B) It is moving at a constant velocity. C) It is decelerating. D) It is moving chaotically.

Sam Hocevar asked Oct 16, 2024

by Sam Hocevar

7.3k points

1 answer

5 votes

93.8k views

How do you solve questions 3 and 4?

SharkAlley asked Oct 16, 2024

by SharkAlley

8.8k points

1 answer

4 votes

29.3k views

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