In a cricket match, the 0.16kg ball is bowled with a straight arm. during one particular delivery, the ball leaves the bowler's hand horizontally, with a speed relative to the ground of 80.8 mph. the bowler's arm is 0.64 m long and the bowler is running at 10.0 mph when the ball is released. calculate the centripetal force exerted on the ball in the bowler's hand, in n. note: 1 mph = 0.447 ms^-1.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.