At the surface of the Earth, the Sun delivers an estimated 1.43 kW/m2 of energy. Suppose sunlight hits a 20.1 m by 33.7 m roof at an angle of 90.0°.
a) Estimate the total power incident on the roof
A) 40 B )40 m north C) 40 m/s D) 40 m/s north-D. 40m/s North
because velocity is a vector quantity which must have magnitude and direction......and only option (D) possess that.-Nwagboso is right....
A rocket, starting from rest, is launched vertically upwards with an acceleration of 5 m/s^2. After 10 s
the engine is switched off. Calculate the maximum height above the launch point reached by the
please explain and include Lenzs ,Maxwells , and Faradays laws so that i can link the whole idea;
i really appreciate any help.-Now that you know these laws as you stated, it is best to study these s
If we have an Initial velocity of 0 km/hr, and a final velocity of 24 km/hr, and a time of 3 seconds, would it be OK to convert the units in the velocities?
For example, 0 km/hr = 0 m/s
24 km/hr = 2
The L-shaped object in the figure consists of three masses connected by light rods.
http://session.masteringphysics.com/prob…
1.What torque must be applied to this object to give it an angular accele
please explain-No, 3*10^8 m/s is the speed of electromagnetic waves in a vacuum (space).
electromagnetic waves slow significantly in other mediums. For example, the speed of electromagnetic waves in l
On takeoff, the combined action of the air around the engines and wings of an airplaneexerts an 8983 N force on the plane, directed upward at an angle of 65.6deg above the horizontal. The plane rises w
I know there are currently many experiments in operation to try and detect it using Germanium at extremely low temperatures.
Shouldnt something have been observed by now?I mean statistically, shouldn
I understand it from looking at the formula v = frequency * wavelength. Wavelength has to increase since its frequency remains constant. However, what is the scientific, non-math based reasoning for t
Converting kwh to joules, I need to know how many joules a 40 watt lightbulb consumes in 15 mins... Can anyone help? :/-It would be easier in this case to just convert the 15 minutes to 900 sec ,and t
only answer A and B and if possible C-The image is located 15 cm from the lens and is twice as the large as the object, so:
m = h(i)/h(o) = -d(i)/d(o).
(a) Since h(i)/h(0) = 2:
2 = -d(i)/d(o) ==> d(i
(To the right is positive) and the Coulomb constant is 8.99 x 10^9
1. What is the force exerted on q1 by the other two charges?
2. What is the force exerted on q2 by the other two charges?
3. What is
The angular frequency of a fan increases from 30 rpm to 60 rpm in 3.142 s. A dust particle is present on the blades of the fan at a distance of 20 cm from the axis of rotation. Find i) the average ang
So in terms of chemistry, the rate of reaction increases with temperture. Now the equiliberium, which is dependant on the rates of reaction in a sense (K=k1/k2), there is a relation, as solubility dep
