Search & Filtering
How many Kcal of heat is needed to increase the temperature of 800 grams water having
temperature change of 75 ᵒC.
The heat produce when a certain mass of brass is heated from 25 ᵒC to 65 ᵒC is 465 Calories. The specific heat of is 0.090. Calculate the mass of brass to produce this requirement.
A 50 grams of ice with specific heat of 0.5 is place in a container
Find the heat needed to change its temperature from ̶ 3 ᵒC to 0ᵒ C.
A 45 grams of copper is heated from 35 ᵒC to 85 ᵒC.
How much heat is absorbed by the copper ? The specific heat of copper is 0.093.
- In a ramp experiment, a trolley of mass 0.5 kg is pushed at a velocity of 0.3m/s. It collides with a second stationary trolley of mass 1.0kg and sticks to it. After collision, both trolleys move off with a velocity of 0.1m/s. Has momentum been conserved?
A 60°prism is of refractive index 1.5.calculate (a)the angle of minimum deviation. (b)the angle of refraction of the light passing through the prism at minimum deviation.(c)the Angle of incidence at minimum deviation.A=60°, n=1.5, dm=?n= sin½(dm+A) Sin½A
light is incident on water at 50 degrees to the normal. Assume coming from air(vacuum). what is the refracted angle
the 931-meter-long metal pipe was hit with a hammer. at the other end with a time difference of t = 2.5 seconds you will hear two sounds. explain where the phenomenon belongs. determine the speed of sound in metal, if the speed of sound in air is 340 m / s
(Projectile motion) A woman runs off the roof of a house, hoping to land in a pool that is 5.12 m away (horizontally). If the roof is 5.49 m high and the woman is running at 6.21 m/s, how much horizontal distance will she cover before she hits the concrete or water?
A mountain climber stands on the summit of K2 at a height of 28,251ft above sea level. The 82.73kg climber weighs 810.0 N at sea level, how much does he weight on the top of the mountain? (law of universal gravitation)
