Which requires more energy, increasing the temperature of a 1 kg block of aluminum by 20º C or raising the temperature of 500g of water by 5º C?-Specific heat capacity of water is 4.186J/g K while for
what happens when light hits moving water-1)Water does refract light (n = 1.33)
2)The surface of moving water causes the angle of incidence to be time dependent; ergo, a given ray of incident light wi
how does badminton related to First Law of Motion or Law of Inertia-Inertia states that an object will remain at a constant velocity (0 or otherwise) unless acted upon by an outside force. A birdie wo
A. ultraviolet light
B. infrared radiation
C. visible light
D. an x-ray-D > xray-Radiation then x-ray then ultraviolet then visible then infrared then microwaves then radio
Its your birthday, and to celebrate youre going to make your first bungee jump. You stand on a bridge 100 m above a raging river and attach a 30-m-long bungee cord to your harness. A bungee cord, for
The physics of electromagnetic radiation is electrodynamics. Electromagnetism is the physical phenomenon associated with the theory of electrodynamics. Electric and magnetic fields obey the properties
... does a hypothetical FTL neutrino move backwards through time?-exs answer is not entirely correct.
According to Einsteins equations, although technically impossible, if an object with mass did obt
A rectangular sign h = 20.0 cm high and w = 11.0 cm wide looses three of its
four support bolts and rotates into the position as shown, with P1 directly over
P3. It is supported by P2, which is so tig
The force on the seatbelt,...Assume the mass of the occupant is 70kg.-40 km/h = 11.1 m/s
First you need to find the deceleration needed to stop the car in 0.08 s. Then you can use this value to find
I know the formula for escape velocity but not what formulas that derive it/can be equated to find it.
because orbital velocity is the same except there is no 2-for an object to achieve escape, it mu
During the week a 2.4 kW kettle was used for 2 hours.
Calculate how much energy was transferred by the kettle.
Write down the equation you use. Show clearly how you work out your answer and give the u
If the human body could convert a candy bar directly into work, how high could an 91kgman climb a ladder if he were fueled by one bar ? (=1400kj?)
If the man then jumped off the ladder, what will be
a train is running at 20 m/son a railway line with radius of curvature 40,000 metres. The distance between the two rails is 1.5 metres. For safe running of train the elevation of outer rail over the i
The hair straighteners have a power of 90 W.
What is meant by a power of 90 W?
and..
Calculate how many kilowatt-hours of electricity are used when the straighteners are used for 15 minutes?
Write
