The microwave ovens rotate at a rate of about 0.105 rev/s.
The microwave rotation is the number of revolutions in a unit of time. To change the unit for angular velocity, assume that the quantity is multiplied by the unit it has. Then change to the desired units. The angular velocity is denoted by ω and has a magnitude of 6.3 rev/min.
ω = 6.3 rev/min
- 1 minute = 60 seconds
- The revolution unit didn't change
ω = 0.105 rev/s
Learn more about Angular velocity here: brainly.com/question/29344944
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<span>No. Work is not done if you carry a book across the room
at a constant velocity?
The force applied is perpendicular to the direction of motion. (C)</span>
Which body is in equilibrium?
(1) a satellite orbiting Earth in a circular orbit
. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. That's a centripetal force, and the satellite is experiencing centripetal acceleration.
(2) a ball falling freely toward the surface of Earth. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. The ball is accelerating toward the ground.
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(3) a car moving with a constant speed along a straight, level road. YES.</em> We don't even need to analyze the forces, just look at the car. It's moving in a straight line, and its speed is not changing. The car's acceleration is zero ! That right there tells us that the NET force ... the sum of all forces acting on the car ... is zero. THAT's called 'equilibrium'.
(4) a projectile at the highest point in its trajectory. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. The projectile is accelerating toward the ground.
I believe the answer that you're looking for is temperature probe. As you raise the heat of the metal cylinder by a specific, measured number of degrees Celsius, you also record the amount of energy put out by the heat source. Specific heat of a substance is equal to the amount of energy or heat needed to raise a substance by one degree Celsius. Use the equation Q=cmΔT, where Q is heat/energy added, c is the specific heat, m is the mass of the cylinder, and ΔT is the change in temperature of the cylinder.
Answer: 343meters away
Explanation:
The velocity of sound in air is approx 343m/s
SO,
Velocity = distance/time taken.
The time taken is 1second only.
Distance = velocity × time
Distance = 343 × 1 = 343meters.