Answer:
Explanation:
It is given that Hair dryer , Toaster and coffeepot are working simultaneously with power 1200 W , 700 W and 800 W respectively.
So the total power of system is 
it is given that they work properly until toast is on.
By switching on the toast, appliance stop working because it may cause the circuit to break to safeguard the circuit.
Circuit breaker frame are used in home to prevent the short circuit
Velocity of the fly: 1318 m/s
Explanation:
The kinetic energy of an object is the energy possessed by the object due to its motion. It can be calculated as

where
m is the mass of the object
v is its speed
For the fly in this problem, we have
is the mass
K = 5.95 J is the kinetic energy
Solving for v, we find its velocity:

Learn more about kinetic energy:
brainly.com/question/6536722
#LearnwithBrainly
To resolve these forces we have to make use of the sines and cosines.
To resolve this force in 30 degree north of west, the answer will be
100*sin(30)
The answer will be 50N
Now to resolve the force acting 60 degree north of east
100* cos(60)
The answer will be 50N.
This also adds to the total force acting that is 50+50=100N. This is the way forces are resolved according to their specified angles.
Answer:
2 revolutions
Explanation:
Assume that when she runs off the edge of the 8.3m high cliff, her vertical speed is 0. So gravitational acceleration g = 9.8m/s2 is the only thing that makes her fall down. So we can use the following equation of motion to calculate the time it takes for her to fall down:

where s = 8.3 m is the distance that she falls, t is the time it takes to fall, which is what we are looking for


Since she rotates with an average angular speed of 1.6rev/s. The number of revolutions she would make within 1.3s is

Metals transfer heat very well but materials such as do not