An AM radio transmitter radiates 500 kW at a frequency of 760 kHz. How many photons per second does the emitter emit?

Q: Your mother got mad at you because you fall down her favorite plate at a height of 4 feet with a…

A: Kinetic energy = 1698.9 joule

Q: An object with a total of 1.3 x 10⁵ J of gravitational potential energy on a 35 m tall cliff would…

A: Given:-  gravitational potential energy ( U ) = 1.3 x 10⁵ J  height of cliff (h) = 35m

Q: a crane lifts an I-beam to a height of 30 meters, giving it a gravitational potential energy of…

A:

Q: Why must work be done at the beginning of a roller coaster ride in order for the ride to proceed?

A: Roller coasters do not have engines, thus in order to function roller coasters, they are first…

Q: 38. What is the kinetic energy of a 10 kg object moving at 2 m/s? O 10J O 20 J O 40 J O 100 J

A: Here the mass of object is 10 kg and velocity is 2m/s.

Q: What is the kinetic energy in J of a 60.3 gram tennis ball approaching a tennis racket at 20.0 m/s ?

A: GivenMass m = 60.3 g = 60.3 x 10-3 kgVelocity v = 20.0 m/s

Q: A 1000kg car traveling at 35 m/s takes 9 m to stop under full braking The same car under similar…

A: Given data *The mass of the car is m = 1000 kg *The initial speed of the car is u = 35 m/s *The…

Q: what is the power required to lift  a 3 kg bag of nails 5 m in 10 s?

A: Mass (m) = 3kg Height (h) = 5m Time (t) = 10s

Q: Shown below is a 30.0-kg block resting on a frictionless ramp inclined at 60° to the horizontal. The…

A: Given: Mass of block is m=30.0kg x=5.0cm x=0.05m

Q: How much more gravitational potential energy of a 1 kg hammer have when it is on a shelf 1.5 m high…

A:

Q: An object has a KE of 88J and a mass of 45 kg. How fast is the object moving?

A:

Q: Suppose you are using a see-saw with your friend. You have a weight of 500 N and your friend has a…

A: Given data: The weight of man is W=500 N. The weight of friend is W'=600 N. The distance of man from…

Q: A motorcycle is moving at 14 m/s when its brake is applied, bringing the cycle to rest in 4.1 s. To…

A: Given The initial speed of the motorcycle is u = 14 m/s. The time is taken by the motorcycle to…

Q: If an object's kinetic energy is tripled, how may times faster is it moving? V3 times faster 3 times…

A: Kinetic energy is defined as the energy of a particle due to its motion. A moving body has kinetic…

Q: what are two ways an object can gain more gravitational potential energy

A: Gravitational potential energy - Gravitational energy or gravitational potential energy is the…

Q: How much work (in J) is needed to move a proton by 2 cm with a 10000 N of electric force

A: Given : Force F = 10000 N             Displacement d = 2 cm = 0.02 m

Q: How high would a 4.8 kg squirrel has to climb a tree to have a gravitational potential energy of 52…

A: GivenGravitational potential energy = 52 JMass of squirrel (m) = 4.8 kg

Q: In raising a 6000 N piano with a pulley system, the workers note that for every 3 m of rope pulled…

A:

Q: Identify the object that has more potential energy than kinetic energy.         a…

A: The objective of the question is to identify the object that has more potential energy than kinetic…

Q: If an individual wants a work rate of 1400 kg m/min with a cycling speed of 350 m/min, how much…

A: Solution: Given: WR = work rate of desired by invididual = 1400 kg.m/min v = cycling speed = 350…