Physics, 01.07.2019 01:00 heythere7373
A1000-kg whale swims horizontally to the right at a speed of 6.0 m/s. it suddenly collides directly with a stationary seal of mass 200 kg. the seal grabs onto the whale and holds fast. what is the momentum of these two sea creatures just after their collision? you can neglect any drag effects of the water during the collision
Answers: 1
Physics, 22.06.2019 00:10
The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?
Answers: 3
Physics, 22.06.2019 12:00
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
Physics, 22.06.2019 12:00
What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?
Answers: 1
Physics, 23.06.2019 02:00
How many electrons does each element require in its valence shell to become stable?
Answers: 1
A1000-kg whale swims horizontally to the right at a speed of 6.0 m/s. it suddenly collides directly...
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