An electron is accelerated through a potential difference of 2.5 MV. What is the change in kinetic energy of the electron? * KE = %3D A e B +

Q: How many heartbeats are there in a lifetime?

A: Consider that the average lifetime of the human is 75 years.

Q: Suppose your speedometer has an uncertainty of 4.5 km/h at a speed of 92 km/h. what is the percent…

A: An uncertainty speed of speedometer, u'=4.5 km/h   The original speed, u=92 km/h

Q: 5.68 •• CP In Fig. P5.68 Figure P5.68 m1 = 20.0 kg and 53.1°. The coefficient of a = kinetic…

A: m1 = 20.0 kg α = 53.1o Coefficient of kinetic friction between incline and block mass m1 is μk =…

Q: It says that it's not the appropriate number of sig figs.

A:

Q: (a) If your speedometer has an uncertainty of 2.0 km/h at a speed of 90 km/h, what is the percent…

A: The percentage uncertainty can be obtained as

Q: Rank these SI distance units from smallest to largest: μm, am, fm, nm, mm, cm, m, km, Gm, Tm, Mm,…

A: Rank these SI distance units from smallest to largest: μm, am, fm, nm, mm, cm, m, km, Gm, Tm, Mm,…

Q: I'm trying to convert m/s to square root C x V / kg and I need specifics.

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Q: A student measures the height from which a ball falls to be two-hundred centimeters with an absolute…

A: measure height = 200 cm uncertainty = 2 cm thus, height = 200 cm ± 2cm

Q: You wish to compare the two experimental results the physicist got, so you decide to find the…

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Q: An object is released from rest and falls in free fall motion. The speed v of the object after it…

A: Given v2=2gy percentage uncertainty in measurement of v=5.19% percentage uncertainty in measurement…

Q: Two piles of sand are combined to make a larger pile. The mass of the first pile of sand is 30 kg ±…

A: The mass of the first pile: The mass of the first pile:

Q: Given a set of length measurements: 62.1, 62.5, 61.7, 62.6, 62.7, 61.9 cm. Find the standard error…

A: The formula for ​Standard Deviation: Standard Deviation, σ=∑i=1n(xi-x)2(n-1)​​where: xi = Value of…

Q: A rectangle has a length of (5.1 ± 0.2) m and a width of (2.3 ± 0.1) m. Calculate: (a) the area and…

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Q: (Please refer to Fig. 1) W = FAx (Equation 1) F = qE (Equation 2) APEetec = -W (Equation 3)…

A: The derived equation is the change in electrical potential energy which is defined as the product of…

Q: 2) On a horizontal table, a 2 kg block strikes a stationary unstretched spring of constant 400 N/m…

A: According to the conservation of energy, KE=PE+W12mv2=12kx2+Ffx12mv2=12kx2+μkmgx12mv2-12kx2=μkmgx…

Q: The world population in billions is approximately P = 7.4e0.010" where t is in years since 2016.…

A:

Q: A study fonds that the metabolic rate of mamals is proportional to the mass of the mamal carried to…

A: