A block of metal is 3 cm on each side. It has a mass of 283.5 grams. What is the density of the metal.
A woman lifts a 300 newton child a distance of 1.5 meters in 0.75 seconds. What is her power output in lifting the child?
3. Compare the slope of the velocity-time graph to the average of all your acceleration values. Are they close? What does the slope of a velocity (or speed) vs. time graph mean? Explain the answer using your data. How does the value of g that you calculated compare to the accepted value of 9.80 m/s2? What is your percent error? Remember that the value of g can be calculated by using g = a/sinθ and percent error can be calculated using the following equation:
Soil can best be described as the A. third layer beneath the Earth's surface. B. sandy bottom of the ocean's floor. C. loose covering of weathered rocks and decaying organic matter. D. layer of bedrock four layers beneath the Earth's surface.
Your question: "the picture shows a professional diver with a mass of 93 kg from a 25 m high cliff. Earths Gravity is acting on the diver. Which statement best describes the reaction force to earths gravity in this situation?"
Soil can best be described as the A. third layer beneath the Earth's surface. B. sandy bottom of the ocean's floor. C. loose covering of weathered rocks and decaying organic matter. D. layer of bedrock four layers beneath the Earth's surface.
What type of sex chromosome will be contained by the sex cells of a female giraffe? A. X chromosome only B. Y chromosome only C. X and Y chromosomes D. egg cells do not contain sex chromosomes A pea plant is heterozygous for height (Tt). Which allele will be carried by a pollen grain produced by the plant? A. T only B. t only C. T and t D. T or t Which term describes the example below? A white cat has a mother that is homozygous dominant and a father that is homozygous recessive. A. homozygous dominant B. homozygous recessive C. heterozygous D. female E. male Which term describes the example below? A rabbit’s cells have two sex chromosomes that are different. A. homozygous dominant B. homozygous recessive C. heterozygous D. female E. male Which term describes the example below? A child with no freckles has a mother who has freckles and is heterozygous and a father who has no freckles and is homozygous recessive. A. homozygous dominant B. homozygous recessive C. heterozygous D. female E. male Which term describes the example below? A child with a widow’s peak has a mother who is homozygous dominant for a widow’s peak and a father who is homozygous dominant for a widow’s peak. A. homozygous dominant B. homozygous recessive C. heterozygous D. female E. male Which term describes the example below? A puppy’s cells have two sex chromosomes that are the same. A. homozygous dominant B. homozygous recessive C. heterozygous D. female E. male
80 girls and boys have planned for a movie. They are in a ratio of 6 girls to 2 boys. How many girls are there?
The total rate of energy use in the United States is now such that each person has the equivalent of about ___ horsepower working continuously.98.3 QBtu/year 29 million people in the U.S.Horsepower= 746 WThe above is the info you will need. This is what I have done so far, but it can NOT be right:98.3*10^15Btu/year (1 year/365 days) = 0.269315*10^15 Btu/day (0.269315*10^15 Btu/day)/291 million = (0.2693*10^15 Btu/day)/291*10^6 ~ 0.00092548109*10^5 Btu/day = 925,481.09 Btu/day 925,481.09 Btu/day*(1day/24hour) = 38561.71 Btu/hour ~ 38561.7 Btu/hour 1 horsepower = 746 W 1 W = 3.412Btu/hr 38561.7 Btu/hr*(1 W/3.412 Btu/hr) ~ 11301.3 W*(1 hp/746 W) = 15.149 hp
A 15 kg box is accelerated from 15m/s to 30 m/s in 36 seconds. What is the net force exerted on the box?
A stone is thrown with an initial velocity of 20 meters per second straight upward from the edge of a cliff 100 meters above a canyon floor. The stone just misses the cliff'a edge on its way down. (Neglect friction) Calculate the time required for the stone to reach its maximum height. Calculate the maximum height of the stone above the edge of the cliff.
