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Question 1. How many nano second are there in a day
Question 2. Express the following number in scientific notation0.015 = 1.5 x 10-20.00000025480076
Question 3 - If an average every man lives for 70 years for how many micro second is this life spend.
Question 4- What are the dimension of energy, power and force.
A 90 kg crate is pushed at constant speed up the frictionless 24° ramp. What horizontal force F is required? What force is exerted by the ramp on the crate
If the LED emits light from a circle with diameter 10mm and is to couple to the fiber which has a50 micro meter diameter core .assume it radiates with afull cone angle 30 degree.
The distance between the wave crests is 1.20 m. At what frequency do we feel the boat hitting the waves?
A 2.50 kg block hangs from a spring. A 420 g body hung below the block stretches the spring 2.90 cm farther. (a) What is the spring constant? (b) If the 420 g body is removed and the block is set into oscillation, find the period of the motion.
A lady ate a whole medium size pizza storing up 120 food Calories. This energy is used to heat up 2 liters of water from a certain initial temperature to a final temperature of 80 deg.C
1. When a battery is connected to several different circuits, it will cause the same current in each circuit? i know its false but please elaborate
What is the tangential speed of a point 0.20 m from the center of the same wheel?
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string? (b) What is the wave speed when the suspended mass is 1.7 kg?
The angle of incidence at a solid/liquid boundary is 65.3°, and the index of refraction of the solid is n = 1.71.(a) What must be the index of refraction of theliquid such that the direction of the light entering the liquid isnot changed?
A race driver has made a pit stop to refuel. After refueling,he leaves the pit area with an acceleration whose magnitude is6.3 m/s2; how much time is required for it to catch the other car
You want to precut a set of 1.51 ohm strips of 14.0 gauge copper wire (of diameter 1.628 mm ). How long should each strip be
A block of mass 12.0 kg slides from rest down a frictionless 35.0° incline and is stopped by a strong spring with k = 2.80 104 N/m. how far has the spring been compressed
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