Physics, 17.09.2021 07:20, stormserena
1).the power of a 100 kg man is 150 watt calculate the time taken by him to climb the height of 20 m.
2). how much energy is needed to kick a football of mass 500 gm with the velocity 72 km per hour .
3). an electric bulb is marked 100 watt how much electrical energy is consumed by it if it is glowed for 2 hours .
4).a person of mass 60 kg is running with the velocity of 20 metre per second what is his power if he completes the race in 30 seconds .
5).A ball is dropped from a height of 5 M and its rebounds back up to the height of 3 M calculate its
a).kinetic energy when it strikes the ground .
b).kinetic energy when it leaves the ground for rebounding .β
Answers: 1
Physics, 22.06.2019 03:40, srtero
Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.
Answers: 1
Physics, 22.06.2019 04:30, angie249
The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^β2m on an edge at the ocean's surface, decrease by 7.5 x 10β10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^β2, delta v=7.5x10^β10. at some point l needs to be cubed. why p is divided by delta v?
Answers: 2
Physics, 22.06.2019 21:00, liddopiink1
Earth's atmosphere is composed of mostly two gases. name the two gases that make up the majority of the atmosphere and use the pie chart to tell the percentages of each.
Answers: 2
1).the power of a 100 kg man is 150 watt calculate the time taken by him to climb the height of 20 m...
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