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You are part of a design team for future exploration of the planet Mars, whereg= 3.7m/s2. An explorer is to step out of a survey vehicle traveling horizontally at 33m/s when it is 1200m above the surface and then fall freely for 20s. At that time, a portable advanced propulsion system (PAPS) is to exert a constant force that will decrease the explorer's speed to zero at the instant she touches the surface. The total mass (explorer, suit, equipment, and PAPS) is 150kg. Assume the change in mass of the PAPS to be negligible.
A copper vat is 10-m long at room temperature (20°C). How much longer is it as it contains boiling water at 1 atm pressure.
Please show steps: Hydraulic engineers in the United States often use, as a units of volume of water, What volume of water, in acre-feet, fell on the town
A man is running at speed c (much less than the speed of light) to catch a bus already at a stop. At t=0, while he is a distance b from the door to the bus, the bus starts moving with the positive acceleration a.
A diathermy machine, used in physiotherapy, generates electromagnetic radiation that gives the effect of "deep heat" when absorbed in tissue. Determine what is the wavelength of this radiation
a 1.53 kg particle with velocity 9.44 ms - 4.84 ms is at x 1.03 m y 6.67 m. it is pulled by a 2.10 n force in the
Superman leaps in front of Lois Lane to save her from a volley of bullets. In a 1-minute interval, an automatic weapon fires 152 bullets, Find the average force exerted on Superman's chest
A projectile is fired vertically from Earth's surface with an initial speed of 9.6 km/s. Neglecting air drag, how far above the surface of Earth will it go
Calculate the speed of a proton that is accelerated from rest through a potential difference of 134V. Calculate the speed of an electron that is accelerated through the same potential difference.
A wire has a length of 7.40 10-2 m and is used to make a circular coil of one turn. what is the maximum torque that this coil can experience
You drop 320 g of solid ice at ?35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice all melts, Find the final temperature of the system
An object with a mass of 4.0 Kg travels with a constant velocity of 8.5m/s northward. How far will the object travel before coming to rest
suppose a single piece of welded steel railroad track stretched 5000 km across the continental united states. if the
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