Q: If C = -4i - 2j - 3k , what is C × j? a) 3i-4k b) 3i+4k c) 3i+2j-4k d) 3i-2j-4k
A: Given , C→=4i∧-2j∧-3k∧Asked C→ x J→
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A:
Q: why is it easier to use neutrons to synthesize new elements compared to alpha particles
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A: We will answer the question using the fact that same charges repel and opposite charges attract.
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A: The atomic mass of lithium can be determined by the following expression.
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A: Protons, neutrons and electrons are the three main subatomic particles.
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A: (b) Atomic mass is the mass of an individual atom, whereas atomic weight is the average ( weighted)…
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What is –40 ºF in ºC? in K?
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- A 23.6L of oxygen is from 120 degrees Celsius at 334kPa is changed to standard conditions. What is the new volume? Round answer by 2 decimal places.The density of gold is 19.32 g/cm³ at 20 °C, express the density of gold in kg/m3.A physical chemist measures the temperature inside a vacuum chamber. Here is the result. T=-75.3 degrees celsius Convert to SI units. Round your answer to decimal place.
- There are 500 m³ of air in a shop at 20.°C. What is the difference in volume if the temperature is 0°C?1200 K is equal to what Celsius temperature?). What is the mass of the air inside a closed vessel with dimensions 2.5 m x 5 m x 8 m at a temperature and pressure of 50°C and 500,000 Pa, respectively. Use MWair = 28.96 g/mol
- A particle with a charge of q₁ = -4.0 C is placed 5.0 m away from another charged particle q2 = +9.0 C. Find the magnitude and direction of electric field at point A which is shown in the figure. k = 9.00 x 109 Nm² C2 91 = -4C 2m A 5 m 45 x 10⁹ N/C (to the left) 18 x 10⁹ N/C (to the left) 3 m 92 = +9℃ Left ( Right-A piece of stone weighs 0.05 pounds. When it is submerged in a graduated cylinder containing 50 ml of water, the level rises to 60 ml. What is the density of stone in g/ml. Ans 2.27 g/ml -The temperature at which mercury freezes is -35°C. What temperature in degrees Fahrenheit at which a mercury thermometer cannot be used? Ans. -31 °FThe classroom temperature is 20° C. The relative humidity is 60%. What is the total humidity (kg of H2O vapor) in the room if its volume is 200 m³?
- What temperature (in Kelvin) is a temperature of -89.92°C?A 23.5L of oxygen is from 120 degrees C at 334kPa is changed to standard conditions. What is the new volume? Round answer by 2 decimal places.The deep body temperature of a healthy person is 37 °C. What is it in Kelvin? Express this temperature in R, K and °F.